Remeha Avanta Plus Gas 310 610 Eco Pro Installation User And Service Manual

2015-05-27

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Great Britain

Gas 310 ECO PRO Gas 610 ECO PRO

Installation, User
and Service
Manual

125467-05

EC declaration of conformity
The device complies with the standard type described in the EG
declaration of conformity. It was manufactured and commissioned in
accordance with European directives.
The original declaration of conformity is available from the
manufacturer.

Contents
1

Introduction ................................................................................................6
1.1

Symbols used .......................................................6

1.2

Abbreviations ........................................................6

1.3

Liabilities ...............................................................7
1.3.1
1.3.2
1.3.3

Safety instructions and recommendations ..............................................9
2.1

Safety instructions ...............................................9

2.2

Recommendations ................................................9

Technical description ..............................................................................11
3.1

General description ............................................11

3.2

Homologations ....................................................11
3.2.1
3.2.2
3.2.3
3.2.4

3.3

3.4

Certifications .........................................................11
Equipment categories ...........................................12
Type plate .............................................................12
Factory test ...........................................................12

Main parts ............................................................13
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.3.7

Boiler type Gas 310 ECO PRO .............................13
Boiler type Gas 610 ECO PRO .............................14
System pump ........................................................14
Regulation of the water temperature .....................15
Protection against a shortage of water ..................15
Maximum temperature protection .........................15
Air differential pressure switch ..............................15

Technical specifications ....................................15
3.4.1
3.4.2

Manufacturer’s liability .............................................7
Installer’s liability .....................................................7
User’s liability ..........................................................7

Boiler type Gas 310 ECO PRO .............................15
Boiler type Gas 610 ECO PRO .............................17

Installation ................................................................................................19
4.1

Regulations governing installation ...................19

4.2

Package list .........................................................19
4.2.1
4.2.2

4.3

Installation options .............................................20
4.3.1

160514 - 125467-05

Standard delivery ..................................................19
Accessories ...........................................................19

Transport ...............................................................20
1

Contents

4.3.2
4.3.3

4.4

Hydraulic connections .......................................28
4.4.1
4.4.2
4.4.3

Flushing the system ..............................................28
Connection of the heating circuit ...........................28
Connecting the condensate discharge pipe ..........29

4.5

Gas connection ...................................................30

4.6

Connections for the air and exhaust
pipes ....................................................................30
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.6.6

4.7

Classification .........................................................31
Outlets ...................................................................31
Lengths of the air/flue gas pipes ...........................32
Additional Directives ..............................................35
Connection of the combustion gas exhaust
pipe .......................................................................35
Connection of the air intake pipe ...........................36

Electrical connections ........................................36
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
4.7.8
4.7.9
4.7.10

Control unit ............................................................37
Recommendations ................................................38
Standard control PCB ...........................................38
Connecting the on/off control ................................40
Connecting modulating controller .........................40
Shutdown input .....................................................40
Release input ........................................................41
System pump ........................................................41
PC/Laptop connection ...........................................41
Connection possibilities for the PCB (SCUS05) .......................................................................42

4.8

Electrical diagram ...............................................47

4.9

Filling the system ...............................................47
4.9.1
4.9.2
4.9.3

Location of the boiler .............................................21
Main dimensions ...................................................26

Water treatment ....................................................48
Filling the siphon ...................................................48
Filling the system ..................................................49

Commissioning ........................................................................................50
5.1

Control panel .......................................................50
5.1.1
5.1.2

5.2

Check points before commissioning ................51
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5

Preparing the boiler for commissioning .................51
Gas circuit .............................................................52
Hydraulic circuit .....................................................52
Connections for the air and exhaust pipes ............52
Electrical connections ...........................................52

5.3

Commissioning the boiler ..................................52

5.4

Gas settings ........................................................53
5.4.1

160514 - 125467-05

Functions of the keys ............................................50
Meaning of the symbols on the display .................50

Setting the air/gas ratio (Full load) ........................54
2

5.4.2

5.5

Checks and adjustments after
commissioning ...................................................56
5.5.1

5.6

Reading the various current values .......................56

Changing the settings ........................................57

Switching off the boiler ............................................................................58
6.1

Installation shutdown .........................................58

6.2

Antifreeze protection ..........................................58

Checking and maintenance .....................................................................59
7.1

General ................................................................59

7.2

Standard checks .................................................59
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
7.2.6
7.2.7
7.2.8
7.2.9
7.2.10
7.2.11
7.2.12

7.3

Checking the hydraulic pressure ...........................60
Checking the ionization current .............................60
Check the water quality .........................................60
Checking the air supply connections and flue gas
discharge connections ..........................................60
Checking the gas filter for pollution .......................61
Checking combustion ............................................61
Check the air supply hose .....................................62
Check the dirt trap .................................................62
Check the air box ..................................................62
Check the air pressure differential switch PS ........63
Check the gas leakage control VPS ......................64
Check the minimum gas pressure switch
Gps ........................................................................66

Specific maintenance operations ......................66
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.8
7.3.9
7.3.10
7.3.11

Finalizing work ......................................................56

Reading out measured values ...........................56
5.6.1

5.7

Setting the air/gas ratio (Part load) ......................55

Clean the fan and the venturi ................................67
Clean and inspect the non-return valve ................68
Replacing the ionization/ignition electrode ............68
Cleaning the gas filter ...........................................69
Cleaning the burner ...............................................70
Clean the burner area ...........................................70
Checking the heat exchanger ...............................71
Cleaning the condensate collector ........................72
Cleaning the siphon ..............................................72
Assembling the boiler ............................................73
Put the boiler back into operation ..........................73

Troubleshooting .......................................................................................74
8.1

Shutdowns and lock-outs ..................................74
8.1.1
8.1.2
8.1.3

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General .................................................................74
Blocking .................................................................74
Lock out .................................................................74
3

Contents

8.1.4

Spare parts ................................................................................................76
9.1

Error memory ........................................................75

General ................................................................76

Checklists .................................................................................................77
10.1 Checklist for commissioning .............................77
10.2 Checklist for periodic inspection and
maintenance ........................................................78

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Gas 310 ECO PRO - Gas 610 ECO PRO

1. Introduction

Introduction

1.1

Symbols used
In these instructions, various danger levels are employed to draw the
user’s attention to particular information. In so doing, we wish to
safeguard the user’s safety, obviate hazards and guarantee correct
operation of the appliance.
DANGER
Risk of a dangerous situation causing serious physical
injury.
WARNING
Risk of a dangerous situation causing slight physical
injury.
CAUTION
Risk of material damage.
Signals important information.
¼Signals a referral to other instructions or other pages in the
instructions.

1.2

Abbreviations
4 3CE: Collective conduit for sealed boiler
4 Central heating: Central heating
4 PCU: Primary Control Unit - PCB for managing burner operation
4 SU: Safety Unit - Safety PCB
4 PSU: Parameter Storage Unit - Parameter storage for PCBs
PCU and SU
4 SCU: Secondary Control Unit - Extended control PCB

160514 - 125467-05

1. Introduction

Gas 310 ECO PRO - Gas 610 ECO PRO

1.3

Liabilities

1.3.1.

Manufacturer’s liability

Our products are manufactured in compliance with the requirements
of the various applicable European Directives. They are therefore
delivered with [ marking and all relevant documentation.

In the interest of customers, we are continuously endeavouring to
make improvements in product quality. All the specifications stated in
this document are therefore subject to change without notice.
Our liability as the manufacturer may not be invoked in the following
cases:
4 Failure to abide by the instructions on using the appliance.
4 Faulty or insufficient maintenance of the appliance.
4 Failure to abide by the instructions on installing the appliance.

1.3.2.

Installer’s liability

The installer is responsible for the installation and inital start up of the
appliance. The installer must respect the following instructions:
4 Read and follow the instructions given in the manuals provided
with the appliance.
4 Carry out installation in compliance with the prevailing legislation
and standards.
4 Perform the initial start up and carry out any checks necessary.
4 Explain the installation to the user.
4 If a maintenance is necessary, warn the user of the obligation to
check the appliance and maintain it in good working order.
4 Give all the instruction manuals to the user.

1.3.3.

User’s liability

To guarantee optimum operation of the appliance, the user must
respect the following instructions:
4 Read and follow the instructions given in the manuals provided
with the appliance.
4 Call on qualified professionals to carry out installation and initial
start up.
4 Get your installer to explain your installation to you.
4 Have the required checks and services done by a qualified
professional.
4 Keep the instruction manuals in good condition close to the
appliance.

160514 - 125467-05

1. Introduction

Gas 310 ECO PRO - Gas 610 ECO PRO

This appliance is not intended to be used by persons (including
children) whose physcial, sensory or mental capacity is impaired or
persons with no experience or knowledge, unless they have the
benefit, through the intermediary of a person responsible for their
safety, of supervision or prior instructions regarding use of the
appliance. Care should be taken to ensure that children do not play
with the appliance.
If the mains lead is damaged it must be replaced by the original
manufacturer, the manufacturer’s dealer or another suitably skilled
person to prevent hazardous situations.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

2. Safety instructions and recommendations

Safety instructions and
recommendations

2.1

Safety instructions
DANGER
If you smell gas:
1.
2.
3.
4.
5.
6.

Do not use a naked flame, do not smoke, do not
operate electrical contacts or switches ( doorbell,
light, motor, lift, etc..).
Shut off the gas supply.
Open the windows.
Report any leaks immediately.
Trace possible leaks and seal them immediately.
If the gas leak is before the gas meter, contact the
gas supplier.

DANGER
If you smell flue gases:
1.
2.
3.
4.

2.2

Switch the appliance off.
Open the windows.
Report any leaks immediately.
Trace possible leaks and seal them immediately.

Recommendations
WARNING
4

Installation and maintenance of the boiler must be
carried out by a qualified professional in compliance
with prevailing local and national regulations.
When working on the boiler, always disconnect the
boiler from the mains and close the main gas inlet
valve.
After maintenance or repair work, check all
installations to ensure that there are no leaks.

CAUTION
The boiler must be installed in a frost-free environment.
Store this document in the document wallet on the inside
of the boiler casing (Underneath the instrument panel).

160514 - 125467-05

2. Safety instructions and recommendations

Gas 310 ECO PRO - Gas 610 ECO PRO

Casing components
Only remove the casing for maintenance and repair operations. Put
the casing back in place after maintenance and repair operations.
Instructions stickers
The instructions and warnings affixed to the appliance must never be
removed or covered and must remain legible during the entire lifespan
of the appliance. Immediately replace damaged or illegible
instructions and warning stickers.
Modifications
Modifications may only be made to the boiler after the written
permission of Remeha to do so.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

3. Technical description

Technical description

3.1

General description
Floor-standing high efficiency gas boiler
4 High efficiency heating.
4 Low pollutant emissions.
4 Heat exchanger made of cast aluminium sections.
4 Transport wheels as standard.
4 Left or right-hand version of the water and flue gas side
connections possible.
4 Separable for assembly in boiler room.
4 HMI Gas 310/610 ECO PRO control panel.
Boiler type:
4 Type Gas 310 ECO PRO-285
4 Type Gas 310 ECO PRO-355
4 Type Gas 310 ECO PRO-430
4 Type Gas 310 ECO PRO-500
4 Type Gas 310 ECO PRO-575
4 Type Gas 310 ECO PRO-650
Boiler type:
4 Type Gas 610 ECO PRO-570
4 Type Gas 610 ECO PRO-710
4 Type Gas 610 ECO PRO-860
4 Type Gas 610 ECO PRO-1000
4 Type Gas 610 ECO PRO-1150
4 Type Gas 610 ECO PRO-1300

3.2

Homologations

3.2.1.

Certifications

CE identification no PIN 0063CL3613
NOx classification 5 (EN 15420)
Type of connection B23, B23P, C33, C53, C63, C83, C93
(Flue gas outlet)

160514 - 125467-05

3. Technical description

Gas 310 ECO PRO - Gas 610 ECO PRO

3.2.2.

Equipment categories

Gas category Gas type
I2H

Connection pressure (mbar)

Gas H (G20) 20

The boiler is preset in the factory to operate on natural gas G20 (Gas
H).

3.2.3.

Type plate

The identification plate is located behind the boiler casing on the
frame, near the syphon connection. It contains the boiler serial
number and important boiler specifications, such as the model and
the gas category.

T003475-F

3.2.4.

Factory test

Before leaving the factory, each boiler is set for optimum performance
and tested to check the following items:
4 Electrical safety
4 Adjustment (CO2)
4 Water tightness
4 Gas tightness
4 Parameter settings

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

3.3

3. Technical description

Main parts

3.3.1.

Boiler type Gas 310 ECO PRO

13
14

31
3

33
35
5

21
6

7
25
9

T004014-E

Flow connection(1)

Return sensor

Air differential pressure switch

Gas filter

Flue gas discharge pipe

Type plate

Return connection

Siphon

Outlet for measuring combustion gases

Transport wheels

Flue gas thermostat (Accessory)

Jacking bolt

Condensate collector sealant cap

Gas connection

Pivoting castor

Gas pressure measurement point

Jacking bolt

Control panel

Base frame

Location for optional features or a control unit

Second return connection (Accessory)

Pressure measurement point

Heat exchanger insulation kit (Accessory)

Sight glass

Boiler casing

Non-return valve

Air inlet

Fan

Burner

Extension piece

Adapter

Venturi

Ignition/ionization electrode

Gas block

Heat exchanger

Air inlet hose

Inspection hatch

Document holder

Heat exchanger sensor

Ignition transformer

(1) ¼For more details about the devices in the flow pipe, please see "Connection of the heating circuit", page 28

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

3. Technical description

3.3.2.

Boiler type Gas 610 ECO PRO

13
14

31
3

33
35
5

21
6
10

23
25

T004015-G

Flow connection(1)

Return sensor

Air differential pressure switch

Gas filter

Flue gas discharge pipe

Type plate

Return connection

Siphon

Outlet for measuring combustion gases

Transport wheels

Flue gas thermostat (Accessory)

Jacking bolt

Condensate collector sealant cap

Gas connection

Pivoting castor

Gas pressure measurement point

Jacking bolt

Control panel

Base frame

Location for optional features or a control unit

Heat exchanger insulation kit (Accessory)

Pressure measurement point

Flue gas collector

Sight glass

Boiler casing

Non-return valve

Air inlet

Fan

Burner

Extension piece

Adapter

Venturi

Ignition/ionization electrode

Gas block

Heat exchanger

Air inlet hose

Inspection hatch

Document holder

Heat exchanger sensor

Ignition transformer

Second return connection (Accessory)

(1) ¼For more details about the devices in the flow pipe, please see "Connection of the heating circuit", page 28

3.3.3.

System pump

The boiler does not have a built-in pump. A system pump can be
installed on the connector of the standard control PCB. This can be
an on/off pump or a modulating pump (with 0 - 10 V control).
14

160514 - 125467-05

3. Technical description

Gas 310 ECO PRO - Gas 610 ECO PRO

¼For more information on controlling a modulating pump, See
paragraph: "Electrical connections", page 36.
Parameters p43 and p44 are used to modify the pump settings.
¼See the Installation and service manual HMI GAS 310/610 ECO
PRO for comprehensive operating instructions. This includes
information about changing and reading parameters, the meaning of
fault codes and deleting the failure memory.

3.3.4.

Regulation of the water temperature

The boiler is equipped with electronic temperature control based on
flow, return, and boiler block temperature sensors. The flow
temperature can be set between 20°C and 90°C. The boiler reduces
its power when the set outlet-temperature is attained. The cutout
temperature is the set heating outlet-temperature + 5 °C.

3.3.5.

Protection against a shortage of water

The boiler is fitted with a safety device to prevent the shortage of water
based on temperature measurements (Temperature difference
between flow and return). If ΔT = 25 K is reached (factory setting),
the boiler reduces its output by modulating to remain in operation as
long as possible. If ΔT ≥ 25 K the boiler goes into part load. If ΔT >
25 + 5 K the boiler goes into a normal control stop (blocking).

3.3.6.

Maximum temperature protection

The maximum protection switches the boiler off if the water
temperature is too high (110°C) and locks it on the control box (Fixed
value, cannot be modified). Once the fault has been rectified, the
boiler can be reset by pressing the J button for 2 seconds.

3.3.7.

Air differential pressure switch

Before a start and when the boiler is in operation, the air pressure
differential switch PS measures the difference in pressure between
the measuring points at the rear of the heat exchanger p+ and the air
box p-. If the pressure difference is greater than 6 mbar, then the boiler
will lock out. Once the fault has been rectified, the boiler can be reset
by pressing the J button for 2 seconds.

3.4

Technical specifications

3.4.1.

160514 - 125467-05

Boiler type Gas 310 ECO PRO

3. Technical description
Boiler type

Gas 310 ECO PRO - Gas 610 ECO PRO
GAS 310 ECO PRO Unit

285

355

430

500

575

650

General
Number of sections

EC indentification no.

Input control

Adjustable

Nominal output (Pn)
(80/60 °C)

minimum

0063CL3613
Modulating, Start/Stop, 0 - 10 V
kW

51
261

65
327

79
395

92
461

106
530

119
601

279

350

425

497

574

651

60
295

75
369

96
445

105
520

121
598

135
677

54
266

68
333

82
402

95
469

109
539

122
610

Full load water efficiency (Hi) (80/60 °C)

98.0

98.1

98.2

98.3

98.4

98.5

Full load water efficiency (Hi) (50/30 °C)

104.8 105.2 105.6 106.0 106.4 106.8

Low load water efficiency (Hi)
(Tr = 60 °C)

94.7

Annual efficiency (DIN 4702, Part 8)

109.6 109.5 109.4 109.3 109.2 109.1

Part load efficiency 92/42 EEG (Tr = 30 °C)
Data on the gases and combustion gases

109.2 109.0 108.8 108.6 108.3 108.1

Nominal output (Pn)
(50/30 °C)

maximum(1)
maximum(1)

Nominal input(Qn)
(Hs)

minimum

Nominal input (Qn)
(Hi)

minimum

maximum(1)
maximum(1)

95.3

95.8

96.3

96.8

97.3

Gas consumption G20 (Gas H)

minimum
maximum

m3/h

5.7
28.1

7.2
35.2

8.7
42.5

10.1
49.6

11.5
57.0

12.9
64.6

Gas inlet pressure G20 (Gas H)

minimum
maximum

mbar

17
30

17
100

17
30

Flue gas losses

2.3

NOx-Emission per year (BREEAM)
(EN 15420)

mg/kWh

Maintenance consumption (EN15420)
(∆T = 30 K)(2)
(Without heat exchanger insulation kit)

571

591

611

630

650

670

0.21

0.18

0.15

0.13

0.12

0.11

91
448

114
560

138
676

160
789

183
907

205
1026

Mass flue gas flow rate

minimum
maximum

kg/h

Flue gas temperature

minimum
maximum

°C

Maximum residual fan duty for flue gas
Characteristics of the heating circuit

30
80

130

120

130

150

104

Water content

Water operating pressure

minimum

bar

Water operating pressure (PMS)

maximum

bar

Water temperature

maximum

°C

110

Operating temperature

minimum
maximum

°C

20
90

0.8

Factory setting
Water resistance (∆T = 20K)
Water resistance (∆T = 11K)

80
mbar

113

110

120

110

125

130

kPa

11.3

12.5

13.0

mbar

374

364

397

364

413

435

kPa

37.4

36.4

39.7

36.4

41.3

43.5

763

723

Electrical characteristics
Power supply voltage
Fuse (230 VAC)
Power consumption - Full load

VAC/Hz
F2 Circuit-breaker

F1 control PCB

maximum

230/50
10
2
279

334

426

543

(1) Factory setting
(2) ∆T = Boiler temp - Ambient temperature
(3) For a room sealed operation

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

3. Technical description

Boiler type

GAS 310 ECO PRO Unit

285

355

430

500

575

650

Power consumption - Part load

maximum

Power consumption - Standby

maximum

Electrical protection index

X1B(3)

Other characteristics
Weight (empty)

Total

Acoustic level at 1 metre(3)
Ambient temperature

maximum

364

398

433

495

531

568

dB(A)

°C

(1) Factory setting
(2) ∆T = Boiler temp - Ambient temperature
(3) For a room sealed operation

3.4.2.

Boiler type

Boiler type Gas 610 ECO PRO

GAS 610 ECO PRO Unit

570

710

860

1000

1150

1300

2x8

2x9

2x10

General
Number of sections

EC indentification no.

Input control

Adjustable

Nominal output (Pn)
(80/60 °C)

minimum

2x5

2x6

2x7

0063CL3613
Modulating, Start/Stop, 0 - 10 V
kW

69
522

87
654

123
790

122
922

148
1060

158
1202

558

700

850

994

1148

1303

80
590

101
738

142
890

141
1040

170
1196

180
1354

72
532

91
666

128
804

127
938

170
1078

162
1220

Full load water efficiency (Hi) (80/60 °C)

98.0

98.1

98.2

98.3

98.4

98.5

Full load water efficiency (Hi) (50/30 °C)

104.8 105.2 105.6 106.0 106.4 106.8

Low load water efficiency (Hi)
(Tr = 60 °C)

94.7

Annual efficiency (DIN 4702, Part 8)

109.6 109.5 109.4 109.3 109.2 109.1

Part load efficiency 92/42 EEG (Tr = 30 °C)
Data on the gases and combustion gases

109.2 109.0 108.8 108.6 108.3 108.1

Nominal output (Pn)
(50/30 °C)

maximum(1)
maximum(1)

Nominal input(Qn)
(Hs)

minimum

Nominal input (Qn)
(Hi)

minimum

maximum(1)
maximum(1)

95.3

95.8

96.3

96.8

97.3

Gas consumption G20 (Gas H)

minimum
maximum

m3/h

7.6
56.2

9.6
70.4

13.5
85.0

13.4
99.2

Gas inlet pressure G20 (Gas H)

minimum
maximum

mbar

17
30

17
100

17
30

Flue gas losses

2.3

NOx-Emission per year (BREEAM)
(EN 15420)

mg/kWh

1142

1182

1222

1260

1300

1340

0.21

0.18

0.15

0.13

0.12

0.11

182
896

228
1120

276
1352

320
1578

366
1814

410
2052

130

150

Maintenance consumption (EN15420)
(∆T = 30 K)(2)
(Without heat exchanger insulation kit)
Mass flue gas flow rate

minimum
maximum

kg/h

Flue gas temperature

minimum
maximum

°C

Maximum residual fan duty for flue gas
Characteristics of the heating circuit

16.2 17.2
114.0 129.2

30
80
130

120

130

(1) Factory setting
(2) ∆T = Boiler temp - Ambient temperature
(3) For a room sealed operation

160514 - 125467-05

3. Technical description

Gas 310 ECO PRO - Gas 610 ECO PRO

Boiler type

GAS 610 ECO PRO Unit

Water content

570

Water operating pressure

minimum

bar

0.8

Water operating pressure (PMS)

maximum

bar

Water temperature

maximum

°C

110

Operating temperature

minimum
maximum

°C

20
90

710
120

860

Factory setting
Water resistance (∆T = 20K)
Water resistance (∆T = 11K)

1000

1150

1300

164

186

208

142

80
mbar

113

110

120

110

125

130

kPa

11.3

12.5

mbar

374

364

397

364

413

435

kPa

37.4

36.4

39.7

36.4

41.3

43.5

Electrical characteristics
Power supply voltage

VAC/Hz

230/50

F2 Circuit-breaker

F1 control PCB

Power consumption - Full load

maximum

558

668

852

1086

1526

1446

Power consumption - Part load

maximum

116

122

124

110

Power consumption - Standby

maximum

957

1025

1095

Fuse (230 VAC)

Electrical protection index

10
2

X1B(3)

Other characteristics
Weight (empty)
Acoustic level at 1

Total
metre(3)

Ambient temperature

maximum

707

771

837

dB(A)

°C

(1) Factory setting
(2) ∆T = Boiler temp - Ambient temperature
(3) For a room sealed operation

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

Installation

4.1

Regulations governing installation
WARNING
Installation of the appliance must be done by a qualified
engineer in accordance with prevailing local and national
regulations. The engineer must be Gas Safe registered
and have the correct ACS qualifications.

4.2

Package list

4.2.1.

Standard delivery

4 The boiler
4 Complete siphon
4 Filling and drainage valve
4 Gas filter
4 Installation, User and Service Manual
4 Water quality instructions

4.2.2.

Accessories
Only use the original or recommended accessories.

Description
Modulating cascade controller iSense Pro

Gas valve leak proving system VPS

Modulating cascade controller Celcia MC4

Safety pressure sensitive switch

C-mix regulator

Condensates neutralisation station

Modulating controller iSense

Air supply collector (For a room sealed operation)

Outside temperature sensor (AF 60)

Combined roof outlet 200/300 mm

Circulating pump replacement pipe

Combined roof outlet 250/350 mm

Second return connection

Parallel roof feed-through 350 mm

Heat exchanger insulation kit

Air supply filter

Exchanger cleaning tool (lenghth 560 mm)

Combustion air/flue gas adapter 250 - 200 mm

Gas main cock

Combustion air/flue gas adapter Gas 310 ECO - Gas 310 ECO PRO

Recom communication kit

Flue gas collector(250/350 mm) (base frame included)

Flue gas thermostat (Switch temperature 110ºC) Air supply filter box for closed configuration
Pressure switch minimum GPS

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.3

Installation options

4.3.1.

Transport
For Gas 610 ECO PRO boilers: The features and
instructions described are for each boiler module.

Boiler type
L (mm)
Gas 310 ECO PRO
285
355

1789

1920

430
500

575

800

2230

650

The boiler is supplied fully assembled on a pallet. See the diagram
and table for the dimensions. The base of the packaging is a pallet
80 cm wide. This means that the crate can be transported with a pallet
truck or four-wheel transport boards. Without the packaging, the
boiler is 720 mm wide (700 mm without casing) and the boiler will fit
through standard doors. The boiler has integrated wheels, so that it
can easily be moved around once the packaging has been
removed.

T003980-C

CAUTION
The wheels are designed for transport purposes only and
not for use when the boiler is in its final position.
If required for internal transport, the boiler can be dismantled into
smaller parts for transport. The boiler can be stripped of:
4 Casing components
4 Gas/air components
4 The frame section on the instrument panel side
1107

See the diagram and table for the dimensions of the largest remaining
transport part (Frame section with heat exchanger and water
connections).

L
Boiler type
Weight (kg) L (mm)
Gas 310 ECO PRO

700
1000

1000
T003676-B

285

249

355

283

430

317

500

356

575

390

650

424

1160

1469

¼For information on fitting the parts, refer to the assembly
instructions delivered with the boiler.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.3.2.

Location of the boiler

n Boiler type Gas 310 ECO PRO

R
T003785-C

663

Left version

Right version

Inspection hatch (Service side)

The service side with the inspection hatch on the heat exchanger is
considered to be the front of the boiler. The boiler is available in both
a ’left-hand’ and ’right-hand’ version. This means that the hydraulic
connections and the flue gas discharge are situated on either the left
or the right-hand side of the boiler. The control panel is on the front
as standard, but can easily be rotated so that it is on the short side.
To make the boiler level and to raise the wheels off the floor, the
adjustment bolts must be used. Turn the adjustment bolts out as soon
as the boiler is placed in the correct position. The picture shows the
support surface of the boiler (This is the position of the adjustment
bolts).

21,5
55

Boiler type
A (mm)
Gas 310 ECO PRO
285
A

355

723

430
500
575

1032

673

650

55
531

55
87,5
T003474-B

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

C + 1100*
800*
C + 600
300

300

800

C + 1100*

800*

720

300

720

800

1670

150

300

3190

150

C + 600

C + C1 + 2200*
800*

800*

600

300

720

300

800

1670

150

C + C1 + 1200

T003499-C

Spacing required if this is operating side.

¼For the dimensions of C/C1, see paragraph: "Main
dimensions", page 26
A technical clearance of at least 80 cm is required at the front (service
side) of the boiler. However, we recommend that the clearance is at
least 100 cm. We recommend a clearance of at least 40 cm above
the boiler (If the air supply filter is used, there must be a clearance of
at least 65 cm). A minimum of 30 cm is required on the side of the
flue gas discharge, and a minimum of 30 cm is also required on the
other side (or 80 cm, if this is operating side).

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

n Boiler type Gas 610 ECO PRO
The boiler is not available with a choice between ’left-hand’ and ’righthand’ versions. The control panel is on the front as standard, but can
easily be rotated so that it is on the short side.
To make the boiler level and to raise the wheels off the floor, the
adjustment bolts must be used. Turn the adjustment bolts out as soon
as the boiler is placed in the correct position. The picture shows the
support surface of the boiler (This is the position of the adjustment
bolts).
Boiler type
A (mm)
Gas 610 ECO PRO
570
710

723

860
1000
1150

1032

1300

T003784-C

663
21,5

663
55

21,5
55

673

55
87,5

55
531

87,5
T003767-D

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

3050

C + 1100
800

800

1450

800

C + 600
300

800

600

800

300

800

1525

1450

3050

800

300

T003768-F

¼For the dimensions of C, see paragraph: "Main dimensions",
page 26.
A technical clearance of at least 80 cm is required at the front (service
side) of the boiler. However, we recommend that the clearance is at
least 100 cm. We recommend a clearance of at least 40 cm above
the boiler (If the air supply filter is used, there must be a clearance of
at least 65 cm). A minimum of 30 cm is required on the side of the
flue gas discharge, and a minimum of 30 cm is also required on the
other side (or 80 cm, if this is operating side).

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

n Rotate instrument panel
The control panel is on the front as standard, but can easily be rotated
so that it is on the short side.

1.
2.
3.
4.
5.

6.
7.
8.
9.

3 2x
4

Unscrew the 4 lateral holding screws in the control panel.
Remove the protective cover.
Unscrew the 2 bottom plate screws.
Lift up the instrument panel with the bottom plate.
Turn the instrument panel and the bottom plate into position on the
short side.
Slide the lips of the bottom plate into the appropriate slots.
Tighten the 2 bottom plate screws.
Refit the protective cover.
Screw the 4 lateral holding screws back in.

90º
5

9
8

2x 7
6

T004028-E

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

4.3.3.

Main dimensions

n Boiler type Gas 310 ECO PRO

1310

Ø 250

1293

310

155

366

447

320

1023

1477

Ø 250

353

1500

716

592

706

130

920
B
A
T003472-H

Gas 310 ECO PRO A (mm) B (mm) C (mm) L (mm) Symbol

Fittings

285

1833

1635

1862

1490

{

Heating circuit flow, Flange NW 80 (DIN 2576)

355

1833

1635

1862

1490

Heating circuit return, Flange NW 80 (DIN 2576)

430

1833

1635

1862

1490

500

2142

1944

2172

1800

575

2142

1944

2172

1800

650

2142

1944

2172

1800

Air intake, Ø 250 mm

Second return (optional), Flange NW 65 (DIN 2576))

Gas / Gaz Gas connection, G2" (Female thread)
Condensates discharge, Ø 32 mm (Internal)
Condensates discharge, 1¼" (Internal)
Flue gas discharge pipe, Ø 250 mm

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

n Boiler type Gas 610 ECO PRO

C
L

1460
722

353
920

130

592

1500

1726

592

353

641

B
A

155

310

1760

1293

320

366

1023

1310

1477

869

T003766-J

Gas 610 ECO PRO A (mm) B (mm) C (mm) L (mm) Symbol

Fittings

570

1833

1582

1862

1490

{

Heating circuit flow, Flange NW 80 (DIN 2576)

710

1833

1582

1862

1490

Heating circuit return, Flange NW 80 (DIN 2576)

860

1833

1582

1862

1490

1000

2142

1892

2172

1800

1150

2142

1892

2172

1800

1300

2142

1892

2172

1800

Gas / Gaz Gas connection, G2" (Female thread)

160514 - 125467-05

Condensates discharge, Ø 32 mm (Internal)
Condensates discharge, 1¼" (Internal)
Flue gas discharge pipe, Ø 350 mm
Air intake, Ø 250 mm
Air supply collector (Option), Ø 350 mm
Second return (optional), Flange NW 65 (DIN 2576)

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.4

Hydraulic connections

4.4.1.

Flushing the system

The installation must be cleaned and flushed according to BS 7593
(2006).
Installing the boiler in new installations (installations less than
6 months old)
4 Clean the installation with a universal cleaner to eliminate debris
from the system (copper, hemp, flux).
4 Thoroughly flush the installation until the water runs clear and
shows no impurities.
Installing the boiler in existing installations
4 Remove sludge from the installation.
4 Flush the installation.
4 Clean the installation with a universal cleaner to eliminate debris
from the system (copper, hemp, flux).
4 Thoroughly flush the installation until the water runs clear and
shows no impurities.
Suitable chemicals and their use should be discussed with
specialist water treatment companies in respect to
aluminium heat exchangers.

4.4.2.

Connection of the heating circuit
For the connection(s) of the boiler Gas 610 ECO PRO: The
features and instructions described are for each boiler
module.
CAUTION
The heating pipe must be mounted in accordance with
prevailing provisions.

1. Remove the dust cap on the central heating flow connection
Ù.
2. Remove the dust cap on the central heating return connection
Ú.
3. Connect the heating water outlet pipe to the connection Ù.
4. Connect the heating water return pipe to the connection Ú.
5. Connect a safety valve to the boiler’s flow connection.
6. Connect the pump to the boiler’s return connection.
Always connect the boiler in a way that will guarantee the water flow
through the unit during operation. When the boiler is used in a system
with two return pipes, the return pipe must be used as a lowest
temperature return. The second return pipe (accessory) is then used
as a higher temperature return. Refer to the instructions supplied with
the product. Please contact us for further information.
28

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

1
2

The flow pipe is fitted with the following components:

Tube pocket for a temperature sensor for an external
control (½").

Vent device (⅛").

Connection for safety valve (1½").

Pressure gauge (½").

Flow sensor (M6).

High-limit thermostat (M4).

T003476-C

4.4.3.

Connecting the condensate discharge pipe
For the connection(s) of the boiler Gas 610 ECO PRO: The
features and instructions described are for each boiler
module.

Discharge the condensed water directly into the drain using a
syphon. In view of the acidity level (pH 2 to 5), only use plastic material
for the discharge pipe.
1. Install a plastic drain pipe on the syphon (dia. 32 mm or larger,
connected to a drain).
CAUTION
Do not make a fixed connection in order to prevent an
overpressure in the siphon.
4
4

4
4

160514 - 125467-05

The condensate drain must be connected openly to
the drain.
Set the discharge pipe at a gradient of at least 5 10 mm per metre, maximum horizontal length 5
metres.
Do not drain condensation water into a roof gutter at
any time.
Connect the condensate discharge pipe in
accordance with prevailing standards.

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.5

Gas connection
For the connection(s) of the boiler Gas 610 ECO PRO: The
features and instructions described are for each boiler
module.
WARNING

Close the main gas valve before starting work on the
gas pipes.
Also fit a gas cock near the boiler.

Eliminate debris and dust from the gas pipes.

The boiler is fitted with a gas filter as standard.
1. Remove the dust cap on the gas connection ß.
2. Connect the gas inlet pipe (Please refer to local rules).

4.6

Connections for the air and exhaust pipes
¼The boiler is suitable for the following types of flue gas
connections. See chapter: "Certifications", page 11.
Follow applicable local guidelines when connecting the flue gas
discharge and air supply pipes to the boiler. The diameters of the
pipes must be defined in accordance with the standards in force in
your country. The total resistance of the flue gas discharge and air
supply must not exceed the maximum acceptable resistance.
¼To determine the maximum length of the air pipes and flue gas
pipes. See chapter: "Lengths of the air/flue gas pipes", page 32.
With room sealed operation, make sure the dirt trap in the
boiler air supply remains accessible. For example, fit a T
piece with an inspection hatch in the air supply pipe directly
above the boiler.
With a flue gas connection of two or more Gas 310 ECO
PRO boilers, certain fan speeds need to be changed.
Change the values of parameters p18, p19 and
p20 for each boiler in the flue gas connection. Set them
to the values as specified in the parameter table for the
Gas 610 ECO PRO boiler.
¼See the Installation and service manual HMI GAS 310/610 ECO
PRO for comprehensive operating instructions. This includes
information about changing and reading parameters, the meaning of
fault codes and deleting the failure memory.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.6.1.

Classification

The table specifies this classification in detail according to [.
Type

Execution

B23

Open flue

B23P(1)
B33

C33

Open flue

Description
4

Without fire-stop approval.

Exhaust of combustion gases above the roof.

4
4

Air in the installation room.
Without fire-stop approval.

Common exhaust of combustion gases above the roof.

Common exhaust of combustion gases mixed in the air, air in the installation room (special
construction).
Exhaust of combustion gases above the roof.

Room sealed flue 4
4

C53

Room sealed flue 4
4

Separate channelling for the air-supply.

Separate channelling for the combustion gases.

C83(2)

4
Room sealed flue 4
Room sealed flue 4

C93(3)

Room sealed flue 4

C63

The opening for the air-supply inlet is located in the same pressure zone as the vent (For
example, a concentric passage to the roof).
Closed equipment.

Air-supply inlet and flue gas outlet are located in different pressure zones.
The manufacturer delivers this type of equipment without a supply or exhaust system.
The equipment can be connected on a so-called semi-CLV system (with common combustion
gas exhaust).
Channel for the air-supply and exhaust fumes in a duct or surrounded by a sleeve:
Concentric.
Eccentric; Air supply from the shaft.
Exhaust of combustion gases above the roof.
The opening for the air-supply inlet is located in the same pressure zone as the vent.

(1) Including the pressure classification P1
(2) An under pressure of 4 mbar is possible
(3) Ask your supplier for minimum dimensions of duct or sleeve

4.6.2.

Outlets

The boilers can be used in room-ventilated or room-sealed
operation. The air supply connection kit must be used for closed
configurations (This is available as an accessory).
When exhausting combustion gases of type C6, the material of the
exhaust must conform with Gastec QA and/or be provided with CE
marking.
The flue gas pipes must be calculated conforming to EN 13384 (parts
1 & 2).
For open exhaust of combustion gases above the roof, the
vent must always be provided with a suitable stainless steel
wire grill.

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

4.6.3.

Lengths of the air/flue gas pipes
4
4

To define the maximum final length, you must deduct
the pipe length in accordance with the reduction table.
The boiler is also suitable for longer chimney lengths
with diameters other than those indicated in the
table. Please contact us for further information.

n Open flue (B23, B23P)
"If using an open flue version, the air supply opening remains open;
only the combustion gas opening is connected". The boiler then takes
in the combustion air required directly from the premises in which it
is installed. For the application of air discharge and combustion gas
discharge piping with a diameter other than 250 mm, a reducer should
be used.
CAUTION
4

If the boiler, in room ventilated operation, has been
set up in a (very) dusty room, use the air supply
filter (Accessory).
Use of the air supply filter is compulsory when the
boiler is exposed to building dust.

CAUTION
4

The air supply opening must remain open.

The premises in which the appliance is installed must
be fitted with the necessary air supply openings.
They must not be reduced or closed.

Gas 310
ECO PRO

Boiler type

R000363-A

Chimney length for the open flue version
Maximum length (L)(1)
with a Ø of
150 mm

with a Ø of
180 mm

with a Ø of
200 mm

with a Ø of
250 mm

285

20 m

50 m

355

11 m

30 m

50 m

430

22 m

39 m

50 m

500

18 m

32 m

50 m

575

13 m

24 m

50 m

650

12 m

21 m

50 m

(1) Calculated with rigid pipe and Outlet without hood (open ’free’)

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

Gas 610 ECO Chimney length for the open flue version
PRO

Boiler type

R000361-A

Maximum length (L)(1)
with a Ø of 250
mm

with a Ø of 300
mm

with a Ø of 350
mm

570

50 m

710

31 m

50 m

860

20 m

50 m

1000

11 m

39 m

50 m

1150

26 m

50 m

1300

19 m

50 m

(1) Calculated with rigid pipe and Outlet without hood (open ’free’)

n Room sealed flue (C33, C63, C93)
If using a room sealed version, it is necessary to connect both the
combustion gas exhaust and the air-supply opening (parallel). For the
application of air discharge and combustion gas discharge piping with
a diameter other than 250 mm, a reducer should be used.

Gas 310 ECO Chimney length for room sealed operation
PRO

Boiler type

R000358-A

Maximum length (L)(1)
with a Ø of 200
mm

with a Ø of 250
mm

with a Ø of 300
mm

285

42 m

50 m

355

21 m

50 m

430

13 m

50 m

500

10 m

50 m

575

34 m

50 m

650

30 m

50 m

(1) Calculated with rigid pipe and Outlet without hood (open ’free’)

Gas 610 ECO
PRO

Boiler type

R000362-A

Chimney length for room sealed operation
Maximum length (L)(1)
with a Ø of 300
mm

with a Ø of 350
mm

with a Ø of 400
mm

570

50 m

710

43 m

50 m

860

26 m

50 m

1000

13 m

35 m

50 m

1150

16 m

24 m

1300

10 m

12 m

(1) Calculated with rigid pipe and Parallel roof feed-through 350 mm (Accessory)

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

n Connection in areas of different pressure ( C53, C83)
Combustion air supply and combustion gas discharge are possible in
various pressure zones, semi-CLV systems. The maximum
permissible difference in height between the combustion air supply
and the combustion gas discharge is 36 m.
Gas 310 ECO PRO

Chimney length in the various pressure zones
Maximum length (L)(1)

Boiler type

R000359-A

with a Ø of 250 mm

285

50 m

355

50 m

430

50 m

500

50 m

575

49 m

650

40 m

(1) Calculated with rigid pipe and Elbow 90º and Outlet without hood (open ’free’)

Gas 610 ECO PRO

Maximum length (L)(1)

Boiler type

R000360-A

Chimney length in the various pressure zones
with a Ø of 350 mm

with a Ø of 400 mm

570

50 m

710

50 m

860

50 m

1000

33 m

50 m

1150

22 m

1300

(1) Calculated with rigid pipe and Elbow 90º and Outlet without hood (open ’free’)

n Reduction table

Pipe reductions per element used
Diameter

Elbow 45°

Elbow 90°

Pipe reduction Pipe reduction

150 mm

1,2 m

2,1 m

180 mm

1,4 m

2,5 m

200 mm

1,6 m

2,8 m

250 mm

2,0 m

3,5 m

300 mm

2,4 m

4,2 m

350 mm

2,8 m

4,9 m

400 mm

3,2 m

5,6 m

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

4.6.4.

Additional Directives

4 Please refer to the manufacturer’s instructions for the material in
question when installing the flue gas discharge and air supply
materials. If the flue gas discharge and air supply materials are not
installed according to the instructions (e.g. they are not leakproof,
not clamped in place etc.), this may cause hazardous situations
and/or result in bodily injury. After assembly, check at least all flue
gas and air–carrying parts for tightness.
4 Connection of the combustion gas exhaust directly to the buildings
brick chimneys or flues is forbidden for condensation reasons.
4 Always clean the ducts thoroughly in cases where lining pipes are
used and/or a connection of the air-supply.
4 It must be possible to inspect the flue or chimney.
4 In cases where condensate coming from the stainless steel or
plastic sections of the flue gas pipe can be driven back towards
the aluminium section, this condensate must be removed using a
collecting device before the aluminium section is reached.
4 For long, aluminium, combustion-gas exhaust pipes it is initially
necessary to consider the relatively high quantity of corrosive
products which are brought together with the condensate from the
exhaust pipe. The siphon on the equipment requires regular
cleaning or, preferably, an additional condensate collector can be
installed above the equipment.
4 The combusted gas discharge pipe must be sufficiently inclined
towards the boiler (at least 50 mm per metre) and an adequate
condensate collection tank and discharge system constructed (at
least 1 m before the boiler opening). The elbows fitted must be at
more than 90° to guarantee the provision of an adequate gradient
and tightness on the lip rings.
Please contact us for further information.

4.6.5.

Connection of the combustion gas exhaust
pipe

The boiler is equipped with a mechanical flue gas non-return valve as
standard. This prevents flue gas travelling back up into the boiler
when it is not in operation. (E.g. for cascade systems).
Mounting
1. Fit the combustion product discharge conduit.

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

2. Fit together the combustion gas exhaust pipes, without welding.

The pipes must allow no leakage of flue gases and be
resistant to corrosion.
Connect the pipes together without stress between
the sections.
Maximum bracket distance from vertical pipes is 2 m.

Maximum tilt of vertical pipes is 20 mm/m.

The pipes must not rest on the boiler or flue gas
adapter.
The horizontal sections need to be constructed with a
gradient of 50 mm per metre: Back to the boiler.
Use a bracket at each connection from horizontal
pipes.

4
4

4.6.6.

Connection of the air intake pipe

Mounting
1. Fit the air-intake conduit.
2. Fit the air-intake conduits together without welding.
4

The pipes must be airtight and corrosion-resistant.

4
4

Connect the pipes together without stress between
the sections.
Maximum bracket distance from vertical pipes is 2 m.

Maximum tilt of vertical pipes is 20 mm/m.

The pipes must not rest on the boiler or air supply
adapter.
The horizontal sections need to be constructed with a
gradient: Downwards in the direction of the supply
opening.
Use a bracket at each connection from horizontal
pipes.

Material
Single wall, rigid
Flexible

aluminium/Stainless steel(1)

(1) The materials used must comply with the prevailing regulations and standards

4.7

Electrical connections
For the connection(s) of the boiler Gas 610 ECO PRO: The
features and instructions described are for each boiler
module.

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

4.7.1.

Mains

N L

PUMP

ON/OFF

N L

Control unit

Pre-wired in the boiler

Three wired power cord

The boiler has a detection phase. The boiler is fully pre-wired. The
boiler is suitable for a 230 V / 50 Hz power supply with live/neutral/
earth. Other connection values are only acceptable if an isolating
BL transformer is installed. Connect the wires of the mains lead to the
appropriate terminal block. This can be found to the left underneath
the connector MAINS. (The mains lead is not supplied).
CAUTION

In the case of a fixed connection to the power cord,
you must always install a main bipolar switch with an
opening gap of at least 3 mm.
When connecting the mains lead to the plug, the
earth wire must be longer than the electrical wires.

The main characteristics of the control unit are described in the table
below.

M
T003486-E

Power supply voltage

230 VAC/50Hz

Rating of the main fuse F2 (230 VAC)

10 AT

Fuse rating F1 (230 VAC)

2 AT

Maximum power consumption of the pump 300 VA

WARNING
The following boiler components are at a voltage of
230V:

Electrical connection of the heating pump (Central
heating) (if used).
Electrical connection of the combined gas valve unit.

Fan.

The majority of components in the control panel.

Ignition transformer.

Connection of the power supply cable.

The boiler has a unique boiler code. This, together with
other data, incl. boiler type, counter readings, etc. is stored
in a (PSU) that belongs with the boiler. If the control unit is
replaced, the counter readings remain stored in it.
It is possible to connect various control, safety and regulation systems
to the boiler. The heat output of the boiler can be controlled as follows:
4 Adjustable control: The output varies between the minimum and
maximum value on the basis of the value determined by the
controller.
4 Analogue setting: Where the heat output or the temperature is
controlled by a 0-10V signal.

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

4 On/Off setting: where the heat output modulates between the
minimum and maximum value based on the flow temperature set
in the boiler.
¼The standard control PCB (PCU-06) can be extended with the
following, for example: "Accessories", page 19

4.7.2.

Recommendations

WARNING
4
4
4

Only qualified professionals may carry out electrical
connections, always with the power off.
The boiler is entirely pre-wired. Do not modify the
connections inside the control panel.
Earth the appliance before making any electrical
connections.

Make the electrical connections of the boiler according to:
4 The instructions of the prevailing standards.
4 The instructions on the electrical diagrams provided with the
boiler.
4 The recommendations in the instructions.
CAUTION
Separate the sensor cables from the 230 V cables.

4.7.3.

Standard control PCB

The protection PCB SU, which protects the boiler, is connected to the
standard control PCB PCU-06.
Various thermostats and controllers can be connected to the standard
control PCB (PCU-06). The possible connections on the standard
control PCB are described in the following paragraphs.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

A clearance of 20 cm is required above the instrument
panel to allow the front cover to open fully. Bear this in mind
when installing cable ducts.
Access to the connector block:
1.
2.
3.
4.

Unscrew the 4 lateral holding screws in the control panel.
Remove the protective cover.
The detachable screw connectors are now accessible.
Secure cable(s) using the traction clip and the cable clamps (The
cable clamps are supplied separately).
5. Firmly retighten the cable clamps and close the control panel.

Mains

N L

PUMP

ON/OFF

N L

T003477-D

Accessing the PCBs behind the control panel:
1.
2.
3.
4.

Unscrew the 4 lateral holding screws in the control panel.
Remove the protective cover.
Open the front cover.
Use both thumbs to press the top of the control panel downwards
a little.
5. While maintaining some of the pressure you are applying to the
top of the control panel, use both hands to tip the casing forwards
and upwards.

2
3

4x 1

4 + 5

T004637-B

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.7.4.

Connecting the on/off control

The boiler can be controlled with an on/off controller. Connect the
controller to the ON/OFF-OT connector. (It does not matter which wire
is connected to which cable clamp).

Mains

N L

PUMP

ON/OFF

N L

T003482-A

4.7.5.

Connecting modulating controller

The boiler is fitted with a OpenTherm connection as standard. As a
result, modulating OpenTherm room controllers can be connected
without any further adjustments. Connect the two-wire cable to
terminals ON/OFF-OT of the connector (It does not matter which wire
is connected to which cable clamp).
Mains

N L

PUMP

ON/OFF

N L

T003482-A

4.7.6.

Shutdown input

The boiler has a shutdown input (Normally closed contact). If this
contact is opened, the boiler will go into shutdown or be locked out.
This input can be used for example in combination with the flue gas
thermostat (Accessory). This input is on the BL terminals of the
connector.
Mains

N L

PUMP

ON/OFF

N L

CAUTION
Only suitable for potential-free contacts.
Remove the bridge before using the input

T003483-B

The behaviour of the input can be changed using parameter
p35.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.7.7.

Release input

The boiler has a release input (Normally open contact). If this contact
is closed when there is a heat demand, the burner will go into
shutdown after a waiting time. This input can be used in combination
with the limit switches on flue gas dampers, hydraulic shutter valves,
etc.. This input is on the RL terminals of the connector.
Mains

N L

PUMP

ON/OFF

N L

CAUTION

Only suitable for potential-free contacts.

T003484-B

The waiting time of the input can be changed using parameter
p32.

4.7.8.

System pump

An external central heating pump can be connected to the Pump
terminals of the connector. The maximum input power is 300 VA.
¼For more information on controlling a modulating pump See
paragraph: "Connection possibilities for the PCB (SCU-S05)", page
42
Mains

N L

PUMP

ON/OFF

N L

T003485-B

4.7.9.

PC/Laptop connection

A PC can be connected to the RS 232 input using an USB cable.
Using the Recom PC/Laptop service software, you can enter, change
and read out various boiler settings.

T003492-E

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.7.10.

Connection possibilities for the PCB (SCUS05)

X1
X9

SCU-S05
X2

FgV

HdV

EgV

Pump

N L

Status

FgV

HdV

EgV

Pump

N L

Nc C No Nc C No
Nc C No Nc C No

X6
0-10

X7
Ctrl

0 + 0 +
0 + 0 +

Wps
0 S + Tout Gps VPS
0 S + Tout Gps VPS

T003684-C

¼To set the parameter selected: See the Installation and service
manual HMI Gas 310/610 ECO PRO for comprehensive operating
instructions.
CAUTION
On removing this PCB, the boiler will show fault code
e[38. To prevent this fault, an auto-detect must be
carried out after removing this PCB.

n Flue gas damper control (FgV)
Not applicable.

FgV

N L
FgV

N L

R000303-A

n Hydraulic valve control (HdV)
In a cascade configuration, a hydraulic valve prevents heat loss when
the boiler is not running. Connect the hydraulic valve to the HdV
terminals of the terminal strip. The running time of the hydraulic valve
must be programmed with parameter p30.

HdV

N L
HdV

N L

R000304-A

n Control of external gas valve (EgV)
If there is a heat demand, an alternating voltage of 230 VAC, 1 A
(maximum) becomes available on the EgV terminals of the connector
to control an external gas valve.

EgV

N L
EgV

N L

R000305-A

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

n Connecting a shunt pump (Pump)
If required, a shunt pump may also be installed on the terminals
Pump of the connector. Only an on/off pump can be controlled. The
pump is activated during lock outs 5t:9 (5v:4,5 and 6). The
maximum input power is 300 VA.

Pump

N L
Pump

N L

R000306-A

n Operation signal and failure signal (Status)
Status

The alarm or operation signal is selected using parameter p26
(Connector X4).

Status

Nc C No Nc C No
Nc C No Nc C No

The alarm or operation signal is selected using parameter p27
(Connector X5).

R000307-B

4 If the boiler is operating, the operation signal can be switched via
a potential-free contact (maximum 230 VAC, 1 A) on the No and
C terminals of the connector.
4 If the boiler locks out, the alarm can be transmitted via a potentialfree contact (maximum 230 VAC, 1 A) on the Nc and C terminals
of the connector.

n Analogue output (Ctrl)
The function of the analogue output can be set using parameter
p36.

Ctrl
0 +
0 +

An outgoing 0-10 V signal can be used either to report the supplied
heat output or the supplied temperature.

R000308-B

The speed of the system pump can be controlled with an outgoing
0-10 V signal. (Only possible if the pump is suitable for this).
Control of 0-10V Wilo system pump

R
max

min
Off
1

Pump regime

min

Minimum pump speed

max

Maximum pump speed

Off

The pump is off

Output signal (V)

9 10 U
T003802-B

Output signal (V) Description
<1

160514 - 125467-05

Pump off

1-2

Hysteresis

2-3

Pump on (Minimum pump speed)

3 - 10

Pump modulates (Linear)

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

Control of 0 - 10 V Grundfos system pump

R
max
Sp

min
1

Pump regime

min

Minimum pump speed

max

Maximum pump speed

Nominal set-point

Output signal (V)

9 10 U
T003803-B

Output signal (V) Description
<0,5

Pump on (Minimum pump speed)

>0,5

Pump modulates (Linear)

Control of PWM system pump
In this case, the 0-10 V signal controls the system pump linear.
Message about the supplied temperature
Output signal (V) Temperature °C Description
0,5

Lock out

1 - 10

10 - 100

Delivered temperature

Message about the supplied heat output
Output signal (V)

Heat output (%)

Description

Boiler off

0,5

Lock out

2,0 - 10(1)

20 - 100

Heat output supplied

(1) Dependent on the minimum modulation depth (set speeds, standard 20%)

n Analogue input (0-10 V)
The function of the analogue input can be set using parameter
p37.

0-10
0 +
0 +
R000309-A

This control can be based on temperature or heat output. If this input
is used for 0-10 V control, then the boiler OT communication is
ignored.
Analogue temperature-based control (°C)
The 0 - 10 V signal controls the boiler flow temperature. This control
modulates on the basis of flow temperature, whereby the heat output
varies between the minimum and maximum values on the basis of
the flow temperature set point calculated by the controller.
Input signal (V) Temperature °C Description
0 - 1,5

0 - 15

Boiler off

1,5 - 1,8

15 - 18

Hysteresis

1,8 - 10

18 - 100

Temperature required

Analogue heat output-based control (%)

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

The 0 - 10 V signal controls the boiler output. The minimum and
maximum values are limited. The minimum output is linked to the
boiler’s modulation depth. The output varies between the minimum
and maximum value on the basis of the value determined by the
controller.
Input signal (V)

Heat output (%)

0 - 2,0(1)

Description

0 - 20

Boiler off

2,0 -

2,2(1)

20 - 22

Hysteresis

2,0 -

10(1)

20 - 100

Heat output requested

(1) Dependent on the minimum modulation depth (set speeds, standard 20%)

n Hydraulic pressure sensor (Wps)
The hydraulic pressure sensor registers the water pressure and can
shut the boiler down when the minimum water pressure is reached.
To activate this blocking option, a minimum pressure must be set with
parameter p"8. Connect the hydraulic pressure sensor to the
Wps terminals of the terminal strip.
0 = Earth or neutral of the power supply
S = Signal or output from the sensor
+ = Supply voltage

Wps
0 S +
0 S +
R000310-A

n Connecting the (Tout) outside temperature sensor
An outside sensor can be connected to the Tout terminals of the
connector (Accessory). Where there is an on/off thermostat controller,
the boiler will control the temperature with the set point of the internal
heating curve.

Tout
Tout
R000311-A

If an outside temperature sensor is connected, it is possible to adapt
the heating curve. The setting can be modified using parameters
p1, p"2, p"3 and p"4.

A OpenTherm controller can also use this outside
sensor. The heating curve required must then be set on the
controller.

-10

-20

20
T003800-A

n Pressure switch minimum (Gps)

Gps
Gps
R000312-A

The minimum gas pressure switch shuts the boiler down if the inlet
gas pressure becomes too low. Check the setting of the minimum gas
pressure switch Gps. (See table below). Connect the minimum gas
pressure switch to the Gps terminals of the connector. The presence
of the gas pressure switch must be set using parameter p29.
Pressure switch minimum
Gas 310 ECO PRO Minimum value

160514 - 125467-05

285

14 mbar

355

13 mbar

430

10 mbar
45

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO
Pressure switch minimum
500

10 mbar

575

10 mbar

650

10 mbar

n Gas valve leak proving system (Vps)

VPS
VPS
R000313-A

The gas leakage control checks and controls the safety valves on the
gas block. The test takes place before the boiler starts up. In the event
of a leak in the gas block, the boiler will lock out. The pressure switch
must be set at 50 % of the admission pressure (See table below).
Connect the gas leakage control to the Vps terminals of the terminal
strip. The presence of the gas leak control must be specified using
parameter p33 in the setting mode.
Boiler type
Gas inlet pressure VPS setting
(Max)
Gas 310 ECO PRO (Max)

285

355

430

100

500

100

575

100

650

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

4.8

4. Installation

Electrical diagram
PCU-06
X01

X02

Mains

Pump

1 2 3

X03

X04 X05

X06

X07

X08

X09

X10

X11

On / Off

1 2 3 4 5 6 7 8 9 10 11

1 10

1 2 3 4

N L

YW/
GN

BL
BK

RD
WH

BR
BR

BL/ BK/ OR
WH WH
OR
BR/ YW/
WH WH
N

PSU

Fs HEs RTs

HLs PS

L L

HMI

1 2 3

1 2 3 4 5 6

GY
BL
BK

N L
ION

X51

BR
WH
GN
YW

1 5 4 2

SU-01
X09

FAN

X08
X02
X01

X07
X06

X08

X05
X04

X09

BL
BR

X07

X10

X06

X03

PCU-06

X02
10 AT

1 2 3 4

SU-01

X11
X03
X05
X04
BL
YW/
GN
BK

1 2 3 456

X50

P
N L

SCU-05
X01
N L

1 2 3

N L

1 2 3 4 5 6 7 8 9

1 2 3

Fgv

X01

N L

Hdv

Egv

X02

Wps

+ -

1 2 3

Nc C No

PUMP

Status

0-10V 0-10V

X03

X04

X05

X06

Tout

Gps

VPs

1 2 3 4 5 6 7 8 9

1 2 3 456

X08

X09

O S +

X07
SCU-S05

R000236-C

SCU-S05 Extended control PCB
PCU-06 Standard control PCB

RTs Return sensor
PSU Storage parameter

SU-01

Safety PCB

On/Off switch

HLs Safety thermostat
PS Air differential pressure switch

Power supply

Connecting a computer

Neutral

HMI

Control panel

Phase

Gas block

Flow switch

HEs

4.9

Ignition transformer
Heat exchanger sensor FAN Fan

Filling the system
CAUTION
Great care is required during water treatment. For more
information, refer to our publication water quality rules.
The rules in the aforementioned document must be
respected. This manual forms a part of the documentation
supplied with the boiler.

160514 - 125467-05

4. Installation

Gas 310 ECO PRO - Gas 610 ECO PRO

4.9.1.

Water treatment

In most cases, the boiler and the central heating installation can be
filled with normal tap water and no water treatment will be necessary.
WARNING
Do not add chemical products to the central heating water
without consulting Remeha. For example: antifreeze,
water softeners, products to increase or reduce the pH
value, chemical additives and/or inhibitors. These may
cause faults in the boiler and damage the heat exchanger.
4

4.9.2.

Rinse the central heating installation with at least 3x
the volume of the central heating installation. Flush
the DHW pipes with at least 20 times the volume of
the pipes.
For untreated water, the pH value of the water in the
installation must be between 7 and 9 and for treated
water between 7 and 8.5.
The maximum hardness of the water in the installation
must be between 0.5 - 20.0 °dH (Depending on the
total installed heat output).
For more information, refer to our publication water
quality rules. The rules in the aforementioned
document must be respected.

Filling the siphon

1. Fill the siphon with water via the condensate tank (Up the level
marker).

CAUTION
Reinsert the condensate collector sealant cap.

T003489-D

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Gas 310 ECO PRO - Gas 610 ECO PRO

4. Installation

4.9.3.

Filling the system

1. Fill the system with clean tap water. The boilers can function at an
operating pressure of between 0.8 - 7 bar.
2. Check the tightness of the water connections.
4

If the water pressure is lower than 0.8 bar, the symbol
e will appear. Only with the hydraulic pressure
sensor connected (Accessory). If necessary, top up
the water level in the heating system.
A filling and drain cock is fitted on the front section as
standard (½").

T003772-F

160514 - 125467-05

5. Commissioning

Gas 310 ECO PRO - Gas 610 ECO PRO

Commissioning

5.1

Control panel
For operation of the boiler Gas 610 ECO PRO: Each
module has its own instrument panel.
¼See the Installation and service manual HMI GAS 310/610 ECO
PRO for comprehensive operating instructions. This includes
information about changing and reading parameters, the meaning of
fault codes and deleting the failure memory.

5.1.1.

ºCºFh
barPsi
rpm
kWµA

ºC

± 30l/min

3
6

Functions of the keys

Display

> [Escape] or J key

D Heating temperature key or [-]

[+] key

S [Enter] or cancel d Key lock-out

B [Chimney-sweeping] keys
(press the 2 and 3 keys simultaneously)

f [Menu] keys
(press the 4 and 5 keys simultaneously)

On/Off switch

PC connection

7
T003479-D

5.1.2.

Information menu:
Q Reading the various current values.

Meaning of the symbols on the display

On/Off switch (0/1):
After 5 lock-outs, the boiler must be switched off/on
again.

Chimney-sweeping position:
B Forced full or part load for CO measurement.
2

Circulation pump:
The pump operates.

User menu:
Parameters at user level can be changed.

Central heating function:
Access to central heating temperature parameter.

Heating programme deactivated:
The heating function is deactivated.

Locking the keys:
Key lock-out is activated.

W
C
E

Manual mode:
Boiler is set to manual operation.

Service menu:
Parameters at installer level can be changed.

K
e

Yellow display with the symbols:
$ + K + Z (Maintenance message).
Water pressure:
The water pressure is too low. Only with the hydraulic
pressure sensor connected (Accessory).
160514 - 125467-05

5. Commissioning

Gas 310 ECO PRO - Gas 610 ECO PRO
Defect:
c Boiler indicates a fault. This can be seen from the e code
and red display.

]

Antifreeze protection:
Boiler is running in frost protection mode.

Hour counter menu:
\ Readout of the operating hours, number of successful starts
and hours on mains supply.

Burner level:
Output level .

Outside sensor:
Z Only if an outside temperature sensor is connected
(Accessory).
g

5.2

[

Signal strength symbol:
Signal strength of the wireless controller (If
connected)..

Battery symbol:
Status of battery of wireless controller (If connected).

Check points before commissioning

5.2.1.

Preparing the boiler for commissioning
For work on the boiler Gas 610 ECO PRO: The features
and instructions described are for each boiler module.
WARNING
Do not put the boiler into operation if the supplied gas is
not in accordance with the approved gas types.

Preparatory procedure for boiler commissioning:
4 Check that the gas type supplied matches the data shown on the
boiler’s data plate.
4 Check the gas circuit.
4 Check the hydraulic circuit.
4 Check the water pressure in the heating system.
4 Check the tightness of the flue gases evacuation and air inlet
connections.
4 Check the electrical connections to the thermostat and the other
external controls.
4 Check the other connections.
4 Test the boiler at full load. Check the setting of the gas/air ratio
and, if necessary, correct it.
4 Test the boiler at part load. Check the setting of the gas/air ratio
and, if necessary, correct it.
4 Finalizing work.
4 Complete the checklist.
¼See chapter: "Checklist for commissioning", page 77.

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Gas 310 ECO PRO - Gas 610 ECO PRO

5. Commissioning

5.2.2.

Gas circuit

WARNING
Ensure that the boiler is switched off.

T003805-B

1. Open the main gas supply.
2. Remove the casings on the inspection side.
3. Measure the inlet gas pressure via the measuring point C on the
gas pipe.
The pressure must be the same as the one shown on the rating
plate.
WARNING
¼To ascertain the gas types permitted, see chapter:
"Equipment categories", page 12.
4. Check the tightness of the gas line, including the gas valves.
5. Purge the gas supply pipe by unscrewing the screw from the gas
pression socket C. Tighten the measurement point when the pipe
has been sufficiently purged.

5.2.3.

Hydraulic circuit

4 Check the syphon — this must be completely filled with clean
water (Up the level marker).
4 Check the tightness of the water connections.

5.2.4.

Connections for the air and exhaust pipes

4 Check the tightness of the flue gases evacuation and air inlet
connections.

5.2.5.

Electrical connections

4 Check the electricity supply.
4 Check the electrical connections.

5.3

Commissioning the boiler
1. Turn on the boiler using the on/off switch.
2. Set the controls (thermostats, control system) so that they request
heat.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

5. Commissioning

3. The start-up cycle begins and cannot be interrupted. During the
start-up cycle, the display shows the following information:
A short test where all segments of the display are visible.
fK[xx: Software version
pK[xx: Parameter version
The version numbers are displayed alternately.

By pressing the S key for a short time, the current operating status
is shown on the display:
Error during the start-up procedure:
4 No information is shown on the display:
- Check the mains supply voltage
- Check the main fuses
- Check the fuses on the control panel:
(F1 = 2 AT, F2 = 10 AT)
- Check the connection of the mains lead to the connector in the
instrument box
- Check the display flat cable
4 A fault is indicated on the display by the fault symbol c and a
flashing fault code:
- The meaning of the error codes is given in the error table.
- Press for 2 seconds on key J to restart the boiler.
Heat demand

Heat demand stopped

1: Fan ON

5: Burner stop

": Boiler is igniting 6: Post-circulation of the pump
3: Heating System 0: Standby

In STAND-BY, the display normally shows the water pressure next to
0 (only when the hydraulic pressure sensor is connected) and the
symbols D and H.

5.4

Gas settings
The boiler is preset in the factory to operate on natural gas G20 (Gas
H).

160514 - 125467-05

5. Commissioning

Gas 310 ECO PRO - Gas 610 ECO PRO

5.4.1.

ºC

Setting the air/gas ratio (Full load)
For checking and/or setting the boiler Gas 610 ECO
PRO: The features and instructions described are for each
boiler module. Make sure that the other boiler module is
out of operation during this check and/or setting.

ºCºFh
barPsi
rpm
kWµA
± 30l/min

Measure the inlet gas pressure via the measuring point C
on the gas pipe. The pressure must be the same as the
one shown on the rating plate.

T004399-A

1. Unscrew the plug of the flue gas measurement point.
2. Connect the flue gas analyser.

Ensure that the opening around the sensor is completely
sealed when taking measurements.
3. Set the boiler to full load. Press the two B keys simultaneously.
The display shows W3. The symbol B appears.
4. Measure the percentage of O2 or CO2 in the flue gases.

The 5 to 9 section boilers are supplied with a different gas
block from the 10 section boiler. See drawing for the
position of control screw A for full load.
5. If this rate does not match the required value, correct the gas/air
ratio using the adjustment screw A on the gas valve unit. The
direction in which the adjustment screw must be turned to increase
or decrease the gas flow is indicated on the gas block.
6. Check the flame through the flame inspection window.

The flame must not be detached.

O2/CO2 control and setting values at full load for G20 (Gas H)
A
T003480-G

Gas 310 ECO PRO
All versions

O2 (%)
4.3 -

4.8(1)

CO2 (%)
9.0(1) - 9.3

(1) Nominal value

CAUTION
The CO2 values when operating at full load must be higher
than the values when operating at low load.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

5. Commissioning

5.4.2.

ºC

Setting the air/gas ratio (Part load)
For checking and/or setting the boiler Gas 610 ECO
PRO: The features and instructions described are for each
boiler module. Make sure that the other boiler module is
out of operation during this check and/or setting.

ºCºFh
barPsi
rpm
kWµA
± 30l/min

Measure the inlet gas pressure via the measuring point C
on the gas pipe. The pressure must be the same as the
one shown on the rating plate.

T004391-A

1. Unscrew the plug of the flue gas measurement point.
2. Connect the flue gas analyser.
Ensure that the opening around the sensor is completely
sealed when taking measurements.
3. Set the boiler to part load. Press the two B keys
simultaneously. The symbol B appears. Press the [-] key until
l3 is displayed.

3
B

4. Measure the percentage of O2 or CO2 in the flue gases.
The 5 to 9 section boilers are supplied with a different gas
block from the 10 section boiler. See drawing for the
position of control screw B for part load.
5. If this rate does not match the required value, correct the gas/air
ratio using the adjustment screw B on the gas valve unit. The
direction in which the adjustment screw must be turned to increase
or decrease the gas flow is indicated on the gas block.
6. Check the flame through the flame inspection window.

2.5
B

The flame must be stable.
T003481-D

O2/CO2 control and setting values at part load for G20 (Gas H)
Gas 310 ECO PRO
All versions

O2 (%)
4.8(1)

- 5.4

CO2 (%)
8.7 - 9,0(1)

(1) Nominal value

CAUTION
The CO2 values when operating at low load must be lower
than the values when operating at full load.

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Gas 310 ECO PRO - Gas 610 ECO PRO

5. Commissioning

5.5

Checks and adjustments after commissioning

5.5.1.

T001522-A

Finalizing work

1. Remove the measuring equipment.
2. Put the flue gas sampling plug back in place.
3. If installed: Check the setting of the minimum gas pressure switch
Gps. The pressure switch must be set at 10 mbar.
4. If installed: Check the setting of the pressure switch for gas
leakage control Vps. The pressure switch must be set at 50 % of
the admission pressure (Up to 40 mbar).
¼See chapter: "Connection possibilities for the PCB (SCUS05)", page 42
5. Reapply the casing on the inspection side.
6. Push key J to return the boiler to normal operating mode.
7. Raise the temperature in the heating system to approximately
70°C.
8. Shut down the boiler.
9. After about 10 minutes, vent the air in the heating system.
10.Switch on the boiler.
11.Checking the hydraulic pressure. If necessary, top up the water
level in the heating system.
12.Tick the gas category used on the data plate.
13.Explain the operation of the installation, the boiler and the
regulator to the users.
14.Give all the instruction manuals to the user. A documentation
folder can be found in the frame of the boiler. Use it to store all
boiler manuals together with other documents relating to the
installation.
15.Finalizing work.
16.Complete the checklist. ¼See chapter: "Checklist for
commissioning", page 77.

The various boiler parameters are preset in the factory.
These factory settings are suitable for the most common
heating systems. For other systems and situations, the
parameters can be modified.

T003979-E

5.6

Reading out measured values

5.6.1.

Reading the various current values

The following current values can be read off the information menu
Q:
4 5t = State.
4 5v = Sub-status.

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Gas 310 ECO PRO - Gas 610 ECO PRO

5. Commissioning

4 t1 = Flow temperature (°C).
4 t" = Return temperature (°C).
4 t4 = Outside temperature (°C)
Only with an outside temperature sensor (Accessory).
4 t6 = Exchanger temperature (°C).
4 5p = Internal set point (°C).
4 fl = Ionization current (µA).
4 Mf = Fan speed (rpm).
4 pr = Water pressure (bar (MPa)).
Only with the hydraulic pressure sensor connected (Accessory).
4 p; = Supplied relative heat output (%).
4 51 = Pressure switch minimum Gps (Kz = Not connected /
K1 = Gas pressure OK / K" = Gas pressure incorrect)
Only with connected minimum gas pressure switch (Accessory)
4 5" = Gas valve leak proving system Vps (Kz = Not
connected / K1 = No gas leak / K" = Gas leak present)
Only with connected gas leakage control (Accessory).
4 V1 = Analogue input (V).
4 V" = Analogue output (V).
¼See the Installation and service manual HMI GAS 310/610 ECO
PRO for comprehensive operating instructions. This includes
information about changing and reading parameters, the meaning of
fault codes and deleting the failure memory.

5.7

Changing the settings
The boiler control panel is set for the most common heating
systems. With these settings, practically all heating systems operate
correctly. The user or installer can optimise the parameters according
to own preferences.
¼See the Installation and service manual HMI GAS 310/610 ECO
PRO for comprehensive operating instructions. This includes
information about changing and reading parameters, the meaning of
fault codes and deleting the failure memory.

160514 - 125467-05

6. Switching off the boiler

Gas 310 ECO PRO - Gas 610 ECO PRO

Switching off the boiler

6.1

Installation shutdown
If the central heating system is not used for a long period, we
recommend switching the boiler off.
4 Switch the On/Off switch to Off.
4 Switch off the boiler electrical power supply.
4 Shut off the gas supply.
4 Ensure that the boiler and system are protected against frost
damage.
CAUTION
In the event of low temperatures, we recommend that the
installation continues to operate at a lower temperature.
This prevents freezing.

6.2

Antifreeze protection
CAUTION
Drain the boiler and central heating system if you are not
going to use your home or the building for a long time and
there is a chance of frost.
1. Set the temperature control low, for example at 10°C.
If there is no demand for heat, the boiler will only switch on in order
to prevent frost damage.
When the heating water temperature in the boiler falls by too much,
the integrated protection system in the boiler starts up. This protection
functions as follows:
(The circulation pump must be electrically connected to boiler)
4 The circulation pump switches on if the water temperature is lower
than 7°C.
4 If the water temperature is lower than 4°C, the boiler starts up.
4 If the water temperature is higher than 10°C, the boiler shuts down
and the circulation pump continues to run for a short time
CAUTION
The integrated protection system only protects the boiler,
not the installation.

160514 - 125467-05

7. Checking and maintenance

Gas 310 ECO PRO - Gas 610 ECO PRO

Checking and maintenance

7.1

General
The cast aluminium/silicon heat exchanger forms the heart of the
boiler. When combined with the special geometric shape, the flue gas
pollution remains limited. At the top of the heat exchanger, the space
between the pins of the heated surface on the flue gas side is slightly
larger than further down. This ensures quick distribution of the hot flue
gases over the heat exchanger which avoids an excessive load at the
top. Due to the boiler’s modulating operation, condensation occurs in
different locations in the heat exchanger. This ensures that most of
the oxidation residues produced are dissolved and rinsed away. The
self-cleaning operation therefore functions optimally.
Nevertheless, we recommend cleaning the flue gas side of the heat
exchanger thoroughly during the annual inspection and service.
Adjust the frequency of inspection and service to the
conditions of use. This applies especially to boilers in
constant use (for specific processes).

7.2

Standard checks
For work on the boiler Gas 610 ECO PRO: The features
and instructions described are for each boiler module.
CAUTION
During inspection and maintenance operations, always
replace all gaskets on the parts removed.
When it is observed subsequent to inspection or
maintenance work that a component in the boiler needs to
be replaced, use only original spare parts or recommended
spare parts and equipment. A service set containing all
necessary components is available for standard
maintenance.
We recommend carrying out the standard checks in the following
order:
1.
2.
3.
4.
5.
6.
7.
8.
9.

160514 - 125467-05

Checking the hydraulic pressure.
Checking the ionization current.
Check the water quality.
Checking the air supply connections and flue gas discharge
connections.
Checking the gas filter for pollution.
Checking combustion.
Check the air supply hose.
Check the dirt trap.
Check the air box.
59

Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

10.Check the air pressure differential switch PS.
11.If installed: Check the gas leakage control VPS.
12.If installed: Check the minimum gas pressure switch Gps.
Preparation
First heat the boiler on high for about 5 minutes (return temperature
65ºC) to dry the heat exchanger on the flue gas side.
WARNING
Always wear safety goggles during cleaning work (using
compressed air).

7.2.1.

Checking the hydraulic pressure

The hydraulic pressure must reach a minimum of 0.8 bar. If the water
pressure is lower than 0.8 bar, the symbol e will appear. Only with
the hydraulic pressure sensor connected (Accessory).
If the water pressure is lower than 0,8 bar, more water
should be added.

7.2.2.

Checking the ionization current

Check the ionization current at full load and low load. The value is
stable after 1 minute. If the value lies below 3 µA, replace the ignition
electrode.
¼See the Installation and service manual HMI GAS 310/610 ECO
PRO for comprehensive operating instructions. This includes
information about changing and reading parameters, the meaning of
fault codes and deleting the failure memory.

7.2.3.

Check the water quality

1. Fill a clean bottle with water from the installation/boiler via the
filling and drain cock.
2. Check the quality of this water sample or have it checked.

For more information, refer to our publication water quality rules. This
manual forms a part of the documentation supplied with the boiler.
The rules in the aforementioned document must be respected.

T004854-A

7.2.4.

Checking the air supply connections and
flue gas discharge connections

Check the condition and tightness of the flue gas discharge and air
supply connection.
60

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7. Checking and maintenance

Gas 310 ECO PRO - Gas 610 ECO PRO

7.2.5.

Checking the gas filter for pollution

The gas block on the boiler is fitted with a gas filter as standard. Check
this for pollution.

1. Set the boiler to full load.
2. Measure the inlet gas pressure via the measuring point P1 on the
gas pipe (It should be at least 17 mbar).
3. Check the gas supply pressure at the pressure outlet 2 on the gas
valve unit.
4. Compare the values measured with the checking values given in
the table:

2
3 2
10

Inlet gas pressure minimum values 2 on the gas block
Gas 310 ECO PRO

5/6/7/8/9

Minimum value

285

14 mbar

355

13 mbar

430

10 mbar

500

10 mbar

575

10 mbar

650

10 mbar

T003774-K

5. If the measured value is lower than the control value, clean or
replace the gas filter.

7.2.6.

Checking combustion

The check on combustion is done by measuring the percentage of
O2/CO2 in the flue gas discharge flue.
1. Unscrew the plug of the flue gas measurement point.
2. Insert the measuring sensor of the flue gas analyser in the opening
of the flue gas measuring point.
CAUTION

Ensure that the opening around the sensor is completely
sealed when taking measurements.

1
T004852-A

3. Set the boiler to full load. Press the two B keys simultaneously.
The B symbol is visible on the menu bar and W3 appears in the

...x
T004354-A

display. The boiler is now operating at full load.
4. Measure the percentage of CO2 and compare this value with the
checking values given.
¼See chapter: "Setting the air/gas ratio (Full load)", page
54.
5. Set the boiler to part load. Press the [-] key until l3 is

displayed. The boiler is now operating on part load.
6. Measure the percentage of CO2 and compare this value with the
checking values given.
¼See chapter: "Setting the air/gas ratio (Part load)", page
55.
7. Remove the measuring sensor of the flue gas analyser from the
opening of the flue gas measuring point.

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7. Checking and maintenance

Gas 310 ECO PRO - Gas 610 ECO PRO

8. Put the flue gas sampling plug back in place.

7.2.7.

2
3
1

Check the air supply hose

1. Disconnect the pipe on the air box side by loosening the bayonet
fitting.
2. Check the hose for damage and pollution.
3. Remove the pollution from the hose with a cloth or soft brush.
4. Replace the hose if it is faulty and/or leaking.

T004855-A

7.2.8.

Check the dirt trap

With room sealed operation, disconnect the air supply
pipe above the boiler to access the dirt trap.
In room ventilated operation with an air supply filter,
remove the filter to access the dirt trap.

1. Check the dirt trap on the air supply side for pollution.
2. First remove coarse pollution and clean the trap with a vacuum
cleaner or a cloth.

T004853-B

7.2.9.

1. Check the air box for pollution.
2. Clean the dirty air box using a vacuum cleaner. Do this from the
connection opening for the air supply hose.

If the air box is dirty, the following components must also
be dismantled and cleaned with compressed air:
4 Non-return valve.

T004856-B

Check the air box

Venturi.

Fan.

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7. Checking and maintenance

Gas 310 ECO PRO - Gas 610 ECO PRO

7.2.10.

Check the air pressure differential switch
PS

Check the air pressure differential switch +

P2 (-)

4
2
P1 (+)

8. Make a note of the pressure indicated by the pressure gauge at
that point. A switch pressure of between 5.5 mbar and 6.5 mbar is
fine. A lower or higher switch pressure indicates a problem with
the air pressure differential switch.

1. Switch the boiler off.
2. Disconnect the silicon hose on the + side (P1) of the air pressure
differential switch.
3. Take a large plastic syringe and connect a T piece with a hose
connected to the mouth.
4. Connect the + side of the air pressure differential switch to one
end of the T piece with a hose.
5. On the other end of the T piece, connect the + side of a pressure
gauge.
6. Switch on the boiler.
7. Push the syringe in very slowly until the boiler goes into failure
mode; Code e12.

SLOW
6

(+)
X mbar

8
...
...
..

ba
r

5.5 mbar....6,5
T005045-C

Check the air pressure differential switch 1. Fasten the silicon hose on the + side (P1) of the air pressure
differential switch.
2. Disconnect the silicon hose on the - side (P2) of the air pressure
differential switch.
3. Connect the - side of the air pressure differential switch to one end
of the T piece with a hose.
4. Pull out the syringe until the boiler goes into failure mode; Code
e12.

1
3

P1 (+)

P2 (-)

5. Make a note of the pressure indicated by the pressure gauge at
that point. A switch pressure of between - 5.5 mbar and - 6.5
mbar is fine. A lower or higher switch pressure indicates a problem
with the air pressure differential switch.
6. Remove any pollution from the connection points of hoses on the
air pressure differential switch.
7. Check the condition and tightness of the hoses of the air pressure
differential switch. Replace the hoses if necessary.

4
SLOW
(+)

-5.5 mbar....-6,5

...
...
..

ba
r

X mbar

T005046-A

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7. Checking and maintenance

Gas 310 ECO PRO - Gas 610 ECO PRO

7.2.11.

Check the gas leakage control VPS

A - Leak test

1. Switch the boiler off.
2. Close the boiler gas cock.
3. Remove the pressure from the gas pipe by unscrewing the screw
in measuring point P1.
4. As soon as the gas pipe is pressure-free, retighten the screw.
5. Open the screw in measuring point 3 of the gas block (On the
opposite side of the VPS pressure switch).
6. Take a large plastic syringe and connect a T piece with a hose
connected to the mouth.
7. Connect one end of the T piece to measuring point 3 of the gas
block.
8. Connect the other end of the T piece to a pressure gauge.
9. Push the syringe in very slowly until the pressure gauge indicates
the minimum inlet gas pressure value.
10.Check the measured pressure for about 30 seconds. If pressure
decreases by more than half, this indicates a gas leak.
11.Replace the gas block or the VPS if necessary.

3
4
10

5/6/7/8/9

5
3

7 3 2 P

SLOW
8

(+)
≥ 0.5 x
X mbar

30 sec

≤ 0.5 x

T005263-D

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Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

B - Check the switch value

1. "Remove the pressure from the gas block; to do so remove the
hose connected to measuring point 3 of the gas block" (On the
opposite side of the VPS pressure switch).
2. Wait approximately 10 seconds and reconnect the disconnected
hose to measuring point 3 of the gas block.
3. Remove the connecting plug from the VPS gas leakage control.
4. Connect an ohmmeter to terminals 2 and 3 of the VPS.
5. Push the syringe in very slowly until the ohmmeter indicates 0
Ohm.
6. Make a note of the pressure indicated by the pressure gauge at
that point. If the measured pressure differs by more than 2 mbar
from the VPS set-up value, set the pressure switch to the correct
value or replace it.

5/6/7/8/9

2
2

2
3

10 sec

2
3

3
10 sec

5/6

7/8/9

3
GPS
VPS

VPS
VPS

GPS

4
3

5
0 Ohm

SLOW
(+)

6
...
...
..
m

ba
r

X mbar

160514 - 125467-05

T005264-C

Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

7.2.12.

1.
2.
3.
4.
5.
6.

1
6

Check the minimum gas pressure switch
Gps

Switch the boiler off.
Open the screw in measuring point 2 of the gas block.
Connect a pressure gauge to measuring point 2 of the gas block.
Switch on the boiler.
Set the boiler to low load.
Close the boiler gas cock very slowly until the boiler shuts down;
Code 5t[9.

7. Make a note of the pressure indicated by the pressure gauge at
that point. Compare the values measured with the checking values
given in the table. If the measured pressure is lower, set the gas
pressure switch to the correct value or replace it.

5/6/7/8/9

Pressure switch minimum
Gas 310 ECO PRO Minimum value

2
3

285

14 mbar

355

13 mbar

430

10 mbar

500

10 mbar

575

10 mbar

650

10 mbar

(+)

7
...
...
..

ba
r

X mbar

≤ 10.0

T005265-D

7.3

Specific maintenance operations
For work on the boiler Gas 610 ECO PRO: The features
and instructions described are for each boiler module.
CAUTION
During inspection and maintenance operations, always
replace all gaskets on the parts removed.
After a service complete the checklist.
If the standard inspection and maintenance operations have revealed
the necessity to carry out additional maintenance work, proceed as
follows, depending on the nature of the work:

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Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

DANGER
4

Disconnect the appliance’s electricity supply.

Shut off the gas supply.

We recommend carrying out the specific maintenance activities in the
following order:
1. Clean the fan and the venturi.
2. Clean and inspect the non-return valve.
3. Replacing the ionization/ignition electrode.
4. Cleaning the gas filter.
5. Clean and inspect the burner.
6. Clean the burner area.
7. Cleaning the heat exchanger.
8. Cleaning the condensate collector.
9. Cleaning the siphon.
10.Assembling the boiler.
11.Put the boiler back into operation.

7.3.1.

1. Remove the electrical connections from the fan. Push the safety
slides on both sides of the power plug right to the back (You could
use a small screwdriver for example).
2. Unscrew the bolts from the extension piece under the fan. Support
the gas block, using a block of wood, for example.
3. Disconnect the air inlet hose from the venturi.
4. Unscrew the nuts on the fan output.
5. Disconnect the fan from the adapter.
6. Clean the fan with a soft plastic brush.
7. Clean the venturi with a soft plastic brush.

Clean the fan and the venturi

6
7

T003494-J

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Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

7.3.2.

Clean and inspect the non-return valve

The non return valve must be replaced if it is faulty.

1
2

1. Remove the electrical connections from the fan. Push the safety
slides on both sides of the power plug right to the back (You could
use a small screwdriver for example). Support the gas block, using
a block of wood, for example.
2. Unscrew the bolts from the extension piece under the fan.
3. Unscrew the nuts on the fan output.
4. Disconnect the fan from the adapter.
5. Clean the non-return valve with a soft plastic brush or with
compressed air.
6. Inspect the non-return valve and replace it if faulty or seriously
damaged.
7. To re-assemble, perform the above actions in reverse order.
CAUTION
Reconnect the fan’s electrical connection.

5
4

6
T003493-H

7.3.3.

Replacing the ionization/ignition electrode

Replace the ionization/ignition electrode in the following cases:

4 Ionization current <3 µA.
4 The electrode is damaged or worn (Visual inspection).

If replacement is necessary, proceed as follows:
1. Unscrew the 2 screws on the middle top casing.
2. Remove the middle top casing.
3. Remove the cable from the ionization/ignition electrode on the
ignition transformer.
4. Unscrew the 2 screws and remove the ionization/ignition
electrode.
CAUTION
Do not fit the new ionisation/ignition electrode until the
burner has been cleaned and refitted. This will prevent
damage occurring.

T003490-H

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Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

7.3.4.

Cleaning the gas filter
The 5 to 9 section boilers are supplied with a different gas
block from the 10 section boiler.

1. Remove the gas filter.
2. Inspection.
3. Clean the gas filter without the use of liquids (shake it or carefully
blow it clean).
4. Replace the gas filter if necessary.
5. To re-assemble, perform the above actions in reverse order.

1a 4x

In this gas block, the gas filter holder has a positioning
ridge. Position this at the top left during assembly.

2
3

4
4mm

1b
1c
1a 2x
2
3

4
3mm

T004043-B

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7. Checking and maintenance

Gas 310 ECO PRO - Gas 610 ECO PRO

7.3.5.

Cleaning the burner

1. Unscrew the nuts from the adapter: Remove the adapter.
2. Lift the burner out of the heat exchanger.
3. Check the burner and, if necessary, clean without touching it (e.g.
with compressed air between 2 and 5 bars: respect a minimum
distance of 1 cm from the surface of the burner).

Never clean the burner’s surface with a brush or similar
item.

4. Carefully hoover the dirt from the inside of the burner.
5. Replace the burner if faulty or seriously damaged.

3
CAUTION
Do not refit the burner until the burner area, heat
exchanger, condensate collector and siphon have been
cleaned.

2-5 bar
min. 1cm

T003488-F

7.3.6.

Clean the burner area

1. Perform a visual check of the burner area.
2. Remove visible pollution with a vacuum cleaner.

1
2

T005044-A

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Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

7.3.7.

1. Unscrew the nuts from the inspection hatch on the heat
exchanger.
2. Take the inspection hatch off the heat exchanger and remove the
insulation cloth. The insulation cloth may stick to the heat
exchanger. Avoid damaging or tearing the insulation cloth.
Remove the silicon insulation cord.
3. Inspect the insulation cloth and replace if necessary.
4. Clean the areas between the pins of the heat exchanger using the
special cleaning tool or cleaning knife (Accessory). Always work
from the bottom to the top. Move the cleaning knife between the
pins horizontally and diagonally.

6
2

Checking the heat exchanger

A range of cleaning knives is available for the various
boilers. Always use the cleaning knife specially designed
for this boiler. This knife has a length of 560 mm.

5. Use compressed air to blow the cleaned parts through in turn. Do
this from the service side and from the burner area.
6. Fit the inspection hatch with the silicon cord and the insulation
cloth.
7. Use clean water to thoroughly rinse the heat exchanger from the
burner area.

T003491-G

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7. Checking and maintenance

Gas 310 ECO PRO - Gas 610 ECO PRO

7.3.8.

Cleaning the condensate collector

1. Remove both sealing caps from the condensate collector. (In front
of and behind the flue gas discharge connection).
2. Thoroughly clean the condensate collector with water. Rinse each
side of the condensate collector for at least 5 minutes with the
largest possible water flow.
3. Refit both sealing caps on the condensate collector.

1
1
min.
5 min.

T004851-A

7.3.9.
1.
2.
3.
4.

Cleaning the siphon

Remove the siphon.
Clean the siphon with water.
Put the siphon back in place.
Fill the siphon with water via the condensate tank (Up the level
marker).

3
2
4

T003478-K

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Gas 310 ECO PRO - Gas 610 ECO PRO

7. Checking and maintenance

7.3.10.

Assembling the boiler

1. Fit the burner.
The burner has 2 holes at the front. Position it on the 2
support pins at the burner opening.

2
1

2. Fit the new ionisation/ignition electrode.
3. Fit the venturi and the fan.
CAUTION
Reconnect the fan’s electrical connection.
4. Fit the air supply hose.
After a service complete the checklist.

4
T004857-C

7.3.11.

Put the boiler back into operation

1.
2.
3.
4.
5.
6.
7.
8.
9.

Open the main gas supply.
Check the gas circuit.
Checking the hydraulic pressure.
Check that there are no leaks on the hydraulic connections.
Checking the flue gas discharge and the air supply.
Check the electricity supply.
Check the electrical connections.
Turn on the boiler using the on/off switch.
Check the gas supply pressure at the pressure outlet P2 on the
gas valve unit.
10.Check the ionization current.
11.Check the combustion.
12.Check the gas connections between the gas block and the venturi
for tightness.
13.Bleed the Central Heating system.
After a service complete the checklist.

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Gas 310 ECO PRO - Gas 610 ECO PRO

8. Troubleshooting

Troubleshooting

8.1

Shutdowns and lock-outs
For operation of the boiler Gas 610 ECO PRO: The
features and instructions described are for each boiler
module.

8.1.1.

General

The boiler is fitted with an electronic regulation and control unit. The
heart of the control system is a microprocessor, the Comfort
Master©, which controls the boiler and also protects the boiler. When
a failure is signalled, the boiler stops or becomes locked.
¼See the Installation and service manual HMI GAS 310/610 ECO
PRO for comprehensive operating instructions. This includes
information about changing and reading parameters, the meaning of
fault codes and deleting the failure memory.

8.1.2.

Blocking

A (temporary) blocking mode is a boiler operating function caused by
an unusual situation. In this case, the display gives a code of blocking
(code 5t[9). The boiler control will try to re-start several times.
The shutdown codes can be read out as follows
1. Press the two f keys simultaneously.
2. Confirm by pressing key S. 5t is displayed, alternating with
the shutdown code 9.

3. Press the [+] key. 5v appears on the display.
The boiler starts up again automatically when the reason
for the blocking has been removed.
T001632-B

8.1.3.

Lock out

When a failure is signalled, the boiler stops or becomes locked. The
display shows :
In a red flashing display:
4 The symbol c
4 The symbol J
4 The fault code (for example e[01)

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Gas 310 ECO PRO - Gas 610 ECO PRO

8. Troubleshooting

The boiler can only start operating again once the causes
of the lock-out have been rectified and after pressing the
J key

8.1.4.

Error memory

The boiler control is equipped with an error memory. The last 10 errors
encountered are recorded in this memory. Each new input deletes the
oldest entry from the memory. In addition to the error codes, the
following data are also saved:
4 Number of times that the error occured: (MK[xx).
4 Boiler operating mode selected (5t[xx).
4 The flow temperature (t1[xx) and the return temperature
(t2[xx) when the error occured.

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9. Spare parts

Gas 310 ECO PRO - Gas 610 ECO PRO

Spare parts

9.1

General
When it is observed subsequent to inspection or maintenance work
that a component in the boiler needs to be replaced, use only original
spare parts or recommended spare parts and equipment.
Send the component to be replaced to your supplier’s Returned
Goods Department if the component in queston is under warranty
(see general terms and conditions of sale and delivery).
Always ensure that your return package is accompanied
by the completed return form, see attached example. In this
way, your supplier can fulfil his warranty obligations more
easily and more effectively.

Customer
Reference

Date

Name
Address
Town/Postcode
Telephone
Contact person
Order number
Code no.

Description Serial number(1) Type Installation date Reason for the exchange Reference

(1) This information can be found on the rating plate.

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

10. Checklists

10 Checklists
10.1 Checklist for commissioning

No. Work to be undertaken for commissioning
1

Filling the central heating system with water and checking the water pressure

Fill the siphon with water

Vent the air in the heating system

Checking the water-side connections for tightness

Checking the type of gas supplied. Checking that the boiler is suitable for the gas
supplied?

Checking the gas supply pressure

Checking the capacity of the gas meter

Checking the tightness of the connections and the gas pipes

Purge the gas supply pipe of the boiler

Checking the electrical connections

Checking the air supply connections and flue gas discharge connections

Checking the functioning and operational status of the boiler

Checking the air/gas ratio

Remove the measuring device and close the measurement points

Attaching the Gas Type sticker

Reapply the casing on the inspection side

Set the boiler regulation to the desired values

Instruct the user and hand over the necessary documents

Confirmation of commissioning
Date

Confirmation / Measured
values

(dd-mm-yy)

Company name, signature of engineer

160514 - 125467-05

10. Checklists

Gas 310 ECO PRO - Gas 610 ECO PRO

10.2 Checklist for periodic inspection and maintenance

No. Inspection and/or service activities
1

Checking the hydraulic pressure

Checking the ionization current

Check the water quality

Checking the air supply connections and flue gas
discharge connections

Checking the gas filter for pollution

Checking combustion (CO2) (Full load/Part load)

Check the air supply hose

Check the dirt trap

Check the air box

Check the air pressure differential switch PS

Check the gas leakage control VPS
(If installed)

Check the minimum gas pressure switch GPS
(If installed)

Clean the fan and the venturi

Clean and inspect the non-return valve

Replacing the ionization/ignition electrode

Cleaning the gas filter

Clean and inspect the burner

Clean the burner area

Cleaning the heat exchanger

Cleaning the condensate collector

Cleaning the siphon

Assembling the boiler (Replace all removed gaskets)

Put the boiler back into operation

Confirmation of inspection
Date

Confirmation and date

(dd-mm-yy) (dd-mm-yy) (dd-mm-yy) (dd-mm-yy) (dd-mm-yy)

Company name, signature of engineer

160514 - 125467-05

Gas 310 ECO PRO - Gas 610 ECO PRO

160514 - 125467-05

10. Checklists

Gas 310 ECO PRO - Gas 610 ECO PRO

160514 - 125467-05

Remeha Commercial UK - Part of the BDR THERMEA
Remeha House
Molly Millars Lane
Wokingham
Berks
RQ41 2QP
After Sales Tel: 01189743076
Technical Enquires: 01189743067
Internet: www.remeha.co.uk

© Copyright
All technical and technological information contained in these technical instructions,
as well as any drawings and technical descriptions supplied, remain our property
and shall not be multiplied without our prior consent in writing.
160514

125467

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Remeha Avanta Plus Gas 310 610 Eco Pro Installation User And Service Manual

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