Remeha Avanta Plus Gas 210 Technical Information

2015-05-27

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GAS 210 ECO PRO
High efficiency Low NOX gas boiler

Types:
210-80
210-120
210-160
210-200

Technical
information

114494-04

Table of contents

GAS 210 ECO PRO

Table of contents
Preface

1. EC declaration

2. Introduction

2.1 Pictograms used

2.2 Important instructions

8
8
8

3. Safety

4. Installation

4.1 Scope of delivery and installation

4.2 Dimensions

4.3 Installation and service clearances

10
10
11
12

5. Water-side connections

5.1.1 Condensed water discharge

5.1.2 Water treatment

5.1.3 Pressure relief valve

5.1.4 Circulation pump

5.1.5 Water flow

13
13
13
14
14
14

6. Gas-side connections

6.1 Gas connection

6.2 Gas pressure

6.3 Gas/air ratio control

15
15
15
15

7. Connecting the flue gas discharge and air supply

7.1 General

7.2 Conventional open flue installation

7.2.1 Possible lengths for the flue gas discharge pipe

7.3 Room sealed installation

7.3.1 Possible lengths for the air supply and flue gas discharge

7.3.2 Discharge in different pressure areas

7.3.3 Connection of flue gas discharge and choice of material

7.3.4 Air supply connection and choice of material
7.3.5 Additional Directives

16
16
16
17
18
18
20
21
21
21

8. Control and electrical connections

8.1 General

8.1.1 Boiler control

8.1.2 Modulating controls general

8.1.3 Modulating room control

8.1.4 Modulating weather-compensated control rematic®

8.1.5 Modulating cascade controller MC4

8.2 Electrical specifications

8.2.1 Mains voltage

8.2.2 Control box

8.2.3 Fuse ratings

8.3 Electrical connection options

8.3.1 Connection options of standard control unit (PCU-01)

8.3.2 On/off control (OT)

8.3.3 Modulating controls (OT)

8.3.4 External interlock (BL)

8.3.5 Input release (RL)

8.3.6 Circulation pump (Pump)

8.3.7Connecting a PC

22
22
22
22
22
22
23
23
23
23
24
24
24
24
24
24
25
25
25

114494-03

GAS 210 ECO PRO

Table of contents

8.3.8 Connection options for the PCB - SCU - X01

8.4 Connection options for the optional 0 - 10 V control PCB (IF-01)

8.4.1 Connection status (Nc)

8.4.2 OTm connection

8.4.3 Analogue input (0 - 10 V)

8.4.4 Analogue output (0 - 10 V)

8.5 Connection options of the optional expanded control/protection PCB (SCU-S01)

8.5.1 Flue gas damper control (FgV)

8.5.2 Hydraulic valve control (HdV)

8.5.3 External gas valve control (EgV)

8.5.4 Operation signal and failure signal (Nc / No)

8.5.5 Water pressure sensor (Wps)

8.5.6 Outside temperature sensor (Tout)

8.5.7 Minimum gas pressure switch (Gps)

8.5.8 Gas leakage control (VPS; only for 210- 160 and 210- 200 boilers)

8.5.9 Wiring diagram

25
26
26
26
27
27
28
28
28
28
28
28
29
29
29
30

9 Commissioning

9.1 Control panel

9.1.1 Normal start-up procedure

9.1.2 Fault during start-up procedure

9.1.3 Reading current values

9.1.3.1 Status and sub status

9.1.4 Adjusting the boiler to the system

9.1.5 Changing parameters at user level (without access code)

9.1.6 Changing parameters at service level (with access code)

9.1.7 Resetting factory settings

9.1.8 Setting manual operation  ( symbol)

9.2 Commissioning

9.3 Taking the boiler out of operation

9.3.1 Boiler with frost protection, out of operation for a long time

9.3.2 Boiler without frost protection, out of operation for a long time

31
31
31
32
33
34
34
35
35
38
39
39
42
42
42

10. Inspection and maintenance

10.1 General

10.2 Combustion check of the boiler

10.2.1 Corrective maintenance

10.2.2 Cleaning the fan

10.2.3 Cleaning the heat exchanger (flue gas side)

10.2.4 Cleaning the burner

10.3 Cleaning the trap

10.4 Checking the ignition electrode

10.5 Checking for leaks

10.6 Checking water pressure

10.7 Putting boiler back into operation

43
43
43
43
44
46
47
48
48
48
48
48

11. Control stops and faults

11.1 General

11.2 Control stops and faults

11.3 Control stop codes

11.4 Fault codes

11.5 Control stop - and fault memory

11.5.1 Reading faults

11.5.2 Deleting control stops or faults

49
49
49
49
51
54
55
55

114494-03

Table of contents

GAS 210 ECO PRO

12. Service parts

12.1 General

12.2 Exploded view

56
56
57

13. Regulations

13.1 General

13.2 Standards

13.3 Remeha factory test

13.4 Supplementary guidelines

58
58
58
58
59

14. Technical specifications

14.1 Technical data

60
60

15. Efficiency data and gas inspection labels

15.1 Unit usable efficiency (HR efficiency)

15.2 Water-side efficiency

15.3 Zero-load losses

15.4 Description of specifications

15.5 Accessories

15.6 Services

15.7 Type of unit

15.8 Operating principle

15.9 Boiler Control
15.9.1 Temperature control

15.9.2 Low water level protection

15.9.3 Maximum protection

15.9.4 Frost protection

61
61
61
61
61
62
62
63
64
64
64
64
65
65

16. Application data

16.1 General

16.2 Air and flue gas application options

16.3 Hydraulic application options

16.4 Cascade application

16.5 Control options

16.6 Gas application options

66
66
66
66
66
69
69

17. Checklists (records)

17.1 Checklist for commissioning (Commissioning record)

17.2 Checklist for annual inspection (inspection record)

17.3 Checklist for maintenance (maintenance record)

70
70
70
71

114494-03

GAS 210 ECO PRO

114494-03

Table of contents

Preface

GAS 210 ECO PRO

Preface
Preface
This technical information , which contains a lot of practical information about the Remeha Gas 210 ECO PRO, a High efficiency
central heating unit, is mainly intended for installers. It contains
important instructions for safe and trouble-free operation of the
boiler before commissioning and during operation.
Read these instructions carefully before putting the boiler into
operation, familiarise yourself with its control functions, operation
and strictly observe the instructions given. Failure to do so may
invalidate warranty or prevent the boiler from operating. The boiler
is available in the following types:
- Gas 210 ECO PRO 80 (3 sections; 87 kW)
- Gas 210 ECO PRO 120 (4 sections; 120 kW)
- Gas 210 ECO PRO 160 (5 sections; 166 kW)
- Gas 210 ECO PRO 200 (6 sections; 200 kW)
The installation, commissioning, inspection and servicing of the
boiler must be carried out by a competent Corgi registered engineer who holds valid A.C.S. certification and in accordance with
current gas safety (installation and use) regulations, the building
regulations and all other relevant codes of practice.
All electrical work must be carried out by a competent engineer
and to be installed in accordance with the current IEE regulations.
If you have any questions, require an engineer to call on site, or if
you need more information about specific subjects relating to this
boiler, or it's installation please do not hesitate to contact our technical help line 0118 978 3434.

When contacting Broag with a problem on the boiler, please have
available the boiler type, Serial No (located on the bottom of the
casing), and the symptoms or fault code (the fault code is a series
of flashing digits in the display panel).
The data published in these technical instructions is based on the
latest information (at date of publication) and may be subject to
revisions.
We reserve the right to continuous development in both design
and manufacture, therefore any changes to the materials or technology employed may not be retrospective nor may we be obliged
to adjust earlier supplies accordingly.

114494-03

GAS 210 ECO PRO

1. EC declaration

1. EC declaration
EC - DECLARATION OF CONFORMITY

Manufacturer : Remeha B.V.
Address : Kanaal Zuid 110
City, Country : Postbus 32, NL-7300 AA Apeldoorn, Holland

- this is to declare that the following product(s)

: Remeha Gas 210 ECO PRO

is/are in conformity with the following EEC-directives:

EEC- Directive:
90/396/EEC
tested and examined to the following norms:
EN 656 A1(2006), EN 15417(2006)
15240(2006)

92/42/EEC
73/23/EEC
DIN EN 50165(2001), EN 50165(1997 + A1: 2001)
DIN EN 60335-1(2003), EN 60335-1(2002)

89/336/EEC
EN 55014-1(2000+A1:2001), 55014-2(1997+A1:2001)
EN 61000-3-2(2000+A2:2005), 61000-3-3(1995+A1:2001)

97/23/EEC
(article 3, sub 3)

Apeldoorn, aug. 2007

W.F. Tijhuis
Approval manager

114494-03

2. Introduction

GAS 210 ECO PRO

2. Introduction
2.1 Pictograms used
The following pictograms are used in this document to emphasise
certain instructions. This is in order to increase your personal
safety and to safeguard the technical reliability of the boiler. The
pictograms used are:
 Useful advice.
 Important instruction for carrying out an action.
 Possible risk of bodily injury or material damage to boiler,

building or environment.
 Possible risk of electrical shocks. Serious bodily injury may
occur.

2.2 Important instructions
The boiler must be installed in a frost-free area.

Work on the boiler
Installation, commissioning, maintenance and repair work may
only be carried out by suitably qualified specialist installers in
accordance with the applicable national and local standards and
guidelines.Always disconnect the mains supply and close the main
gas cock when working on the boiler. Check the entire system for
leaks after maintenance and servicing work.
Casing panels may only be removed for maintenance and servicing purposes. Refit all panels on completion of maintenance and
servicing work.
Instruction and warning labels on the boiler must never be
removed or covered and must be clearly legible throughout the
entire service life of the boiler. Replace damaged or illegible
instruction and warning labels immediately. Generally applicable
safety instructions related to accident prevention must be consulted in addition to the information supplied in this technical documentation.
Boiler modifications
Modifications to the boiler require the written approval of Broag.

Keep this document near to the installation.

114494-03

GAS 210 ECO PRO

3. Safety

3. Safety
Adhere strictly to the specific safety instructions.


Can you smell gas? Proceed as follows:
• do not smoke and avoid fire and sparks
• do not operate electrical switches.
• close the gas cock.
• open doors and windows.
• trace possible leaks and seal them off.
• if the leak is upstream of the gas meter, notify National Gas
Emergency Service tel: 0800 1110999.

Can you smell flue or combustion gases? Proceed as follows:
• isolate the mains power supply from the boiler.
• open doors and windows.
• trace possible leaks and seal them off.

114494-03

4. Installation

GAS 210 ECO PRO

4. Installation
4.1 Scope of delivery and installation
The boiler is supplied fully assembled and protected. The boiler
is placed on a pallet (70 x 130 cm, 145 cm high), which can be
transported with a pallet truck, hand truck, forklift truck or 4-wheel
transport boards. The packaging passes through all standard
doors (minimum width of 74.5 cm).
The boiler is installed as follows:
- Position the pallet with the boiler in the boiler room;
- Remove the fixing bands and all other packaging (some
components are packaged in the polystyrene cap);
- Lift the boiler from the pallet;
- Slide the boiler into the required position, using the recessed
handles in the boiler base;
- Cover the boiler and do not operate it whilst dust creating
construction processes or insulation to the pipe work etc. are
carried out in the plant room.

114494-03

GAS 210 ECO PRO

4. Installation

125

4.2 Dimensions

140

121

1070

152

316

1200

1272

305

160

1190

450
114492LTAL21H001b

fig. 01

Elevation drawings

Connection
É Flow

Gas 210 ECO PRO 80/120/160
1¼” male thread

Gas 210 ECO PRO 200
1½” male thread (fit supplied adapter 1¼” > 1½”)

Ê Return

1¼” male thread

1½” male thread (fit supplied adapter 1¼” > 1½”)

 Gas connection

1¼” male thread

Ò Condensate drain

Ø 32 mm external

Ð Combustion air supply

Ø 150 mm

Ñ Flue gas outlet
Dimension “A”

Ø 150 mm
1309 mm
1¼” male thread

Ø 150 mm
1324 mm
1¼” male thread

Ì Second return (option)

114494-03

4. Installation

GAS 210 ECO PRO

4.3 Installation and service clearances
Clearance of at least 60 cm is required at the front of the boiler.
However, we recommend a clearance of 1 m. We recommend a
clearance of at least 40 cm above the boiler control panel, at least
5 cm on the left side and at least 25 cm on the right side in connection with condensed water discharge. Install a gas cock in the
immediate vicinity of/above the boiler.

2
1490
250

1190

250

600

1050
600

1050

4
2100
450

1890
450

600

450

1190

250

1190
50

250

1690

1190

450

250

600

1690

1190

450

1190

450

2930

114492LTAL21H002a

fig. 02

Boiler room installation options

114494-03

GAS 210 ECO PRO

5. Water-side connections

5. Water-side connections
5.1.1 Condensed water discharge
Discharge the condensed water directly into a foul water drain. In
view of the acidity level of condensate (pH between 3 and 5), only
use plastic material for the discharge pipe. After assembly, fill the
trap with clean water. Make an open connection with the drain. The
discharge pipe must slope down by at least 30 mm/m. Condensed
water must not be discharged into gutters or rain water down pipes.

5.1.2 Water treatment
• Use untreated tap water only to fill the CH system.
• The pH value of the system water must be between 7 and 9.
• Where inhibitors are being used, please refer to Broag recommendations in this section and follow the manufactures instructions given.
If used correctly water treatment can improve the boilers efficiency
and increase the anticipated life expectancy of the boiler.

For further information a special document “Remeha water quality
regulations” is available from Broag. The regulations mentioned in
this document must be followed.
As most systems contain a variety of metals, it is considered good
practice to provide some form of water treatment in order to prevent or reduce the following:
• Metallic corrosion
• Formation of scale and sludge
• Microbiological contamination
• Chemical changes in the untreated system water

All scale deposits, however small, will reduce the efficiency of the
boiler and should be prevented.
Suitable chemicals and their use should be discussed with a specialist water treatment company prior to carrying out any work
(environmental aspects, health aspects). The specification of the
system and manufacturers recommendations must be taken into
account, along with the age and condition of the system. New systems should be flushed thoroughly to BS 7593(1992) to remove
all traces of flux, debris, grease and metal swarf generated during installation. Care to be taken with old systems to ensure any
black metallic iron oxide sludge and other corrosive residues are
removed, again by power flushing, ensuring that the system is
drained completely from all low points.

Please ensure that the new boiler plant is not in circuit when the
flushing takes place, especially if cleansing chemicals are used to
assist the process.

114494-03

5. Water-side connections

GAS 210 ECO PRO

It is important to check the inhibitor concentration after installation, system modifications, filling the system and every service in
accordance with these instructions.
For the correct dosage and the suitability of inhibitors for use with
our boilers and for further information on water treatment or system cleaning we advise direct contact with either of the following
companies:
‘Copal ®’ manufactured by:
Fernox, Cookson Electronics
Forsyth Road
Sheerwater
Woking
Surrey GU21 5RZ
Tel No: 01483 793200
Fax No: 01483 793201
Email: sales@fernox.com
Website: www.fernox.com
or:

Sentinal ‘X100®’ manufactured by:
Sentinel Performance Solutions
The Heath Business & Technical
Park
Runcorn
Cheshire,
WA7 4QX
Tel No: 0800 389 4670
Fax No: 0800 389 4677
Email: info.uk@sentinel-solutions.net
Website: www.sentinel-solutions.net

5.1.3 Pressure relief valve
Install an pressure relief valve in the system, in accordance with
NEN 3028, between any valves and the boiler and in the flow pipe
within 0.5 m of the boiler.

5.1.4 Circulation pump

P (%)

The boiler is equipped with a pump switch to connect an external
circulation pump. This pump is run once every 24 hours to prevent
sticking (24 hour pump operation). Only on/off pumps can be controlled. For connections, see Section 8.3.6.
The hydraulic resistance for the various output options of the
boiler is as follows:

Boiler type
D

210-80
210-120
210-160
210-200

Hydraulic resistance at Hydraulic resistance at a dT
a dT of 20°C
of 10°C
mbar
kPa
mbar
kPa
165
16,5
545
54,5
135
13,5
446
44,6
170
17,0
562
56,2
180
18,0
595
59,5

∆T (°C)
114492LTAL21H031

fig. 03 Output control characteristic
V = full load
D = part load

P = heat output
∆T = temperature difference

5.1.5 Water flow
The maximum temperature difference between flow and return,
and the maximum rate of rise of the flow temperature and boiler
block temperature are limited by the boiler's modulating controls.
As a result, the boiler is virtually unaffected by low water flow.
However for a continuous supply of heat, the boiler requires a
minimum flow of 30 % of the nominal flow at the relevant design
temperatures.

114494-03

GAS 210 ECO PRO

6. Gas-side connections

6. Gas-side connections
6.1 Gas connection
The boiler is suitable for use with natural gas and propane* category II2H3P. For other types of natural gas, consult our Technical
department. All gas appliances must, by law, be installed by competent persons (e.g. Corgi). Failure to install appliances correctly
could lead to prosecution. It is in your own interest and that of
safety to ensure that the law is complied with.
The gas connection is at the top of the boiler. We recommend
installing a gas filter in the gas supply pipe to avoid pollution of the
gas multiblock. The gas filter's resistance must not be so high that
the minimum inlet gas pressure can no longer be achieved.
* Refer to Broag for using propane.

6.2 Gas pressure
3+4 L

5+6 L

The boiler has been factory set and tested by Remeha to natural
gas (G20) - with an inlet pressure of 17 mbar.
The boiler is suitable for 17 - 30 mbar inlet gas pressure.
For propane (LPG), an inlet pressure of 37 - 50 mbar is required.

114492LTAL21H003a

fig. 04

Gas multiblocks

6.3 Gas/air ratio control
The boiler has a zero governor gas valve. This gas valve maintains the ratio between the gas and air quantities in the burner at
a constant level under variable loads. This ensures clean and reliable combustion and high efficiency across the entire load range.

114494-03

7. Connecting the flue gas discharge and air supply

GAS 210 ECO PRO

7. Connecting the flue gas discharge and air supply
7.1 General
The Remeha Gas 210 PRO is suitable for conventional room ventilated or room sealed operation. Specify at the time of ordering if
the boiler is to be supplied for room sealed operation. In that case,
the boiler will be supplied with a purpose-designed room sealed
terminal, air supply connection and some accessories. The air
supply connection should rest on the heat exchanger underneath
the boiler casing after removing the standard perforated air inlet
cover. Horizontal components in the flue gas discharge system
should slope towards the boiler. Horizontal components in the air
supply system should slope towards the supply opening.
Room sealed terminals should comply with the national requirements for both horizontal and vertical outlet constructions.
Care should be taken when siting flue exit positions as a vapour
plume will be visible when the boiler is operational (flue gas temperature will be less than 80°C resulting in the water vapour condensing out on contact with the air).
Classification due to discharging flue gases
The boiler is approved according to CE with classification:
Type B23: Conventional room ventilated appliance without draft
diverter. Air supply from boiler room; flue gas discharge on roof.
Type B23P: Conventional room ventilated boiler without draft
diverter. Air supply from boiler room: flue gas discharge on roof,
metal flue gas discharge with CE symbol, meets pressure class P1.
Type C13: Room sealed boiler, connected to combined wall outlet.
Type C33: Room sealed appliance, connected to combined roof
outlet.
Type C43: Room sealed appliance in cascade configuration, connected via two ducts to a common duct system serving more than
one appliance.
Type C53: Room sealed appliance, connected to separate ducts
for the air supply and flue gas discharge, terminated in zones of
different pressure.
Type C63: Room sealed appliance, supplied without the terminal
or the air supply and flue gas discharge ducts.
Type C83: Room sealed appliance, connected to separate air
supply and flue gas discharge duct, with flue gas discharge duct
always in underpressure.

7.2 Conventional open flue installation
The open flue version extracts the necessary combustion air from
the plant room or compartment. A table showing the maximum discharge lengths can be found in Section 7.2.1.

114494-03

GAS 210 ECO PRO

7. Connecting the flue gas discharge and air supply


• The air supply opening must stay open.
• The installation area or boiler room must be equipped with the
necessary combustion air supply openings. These openings
must not be obstructed or shut off.
• The combustion air supply must be free of dust and chemically aggressive agents (such as trichloroethylene or halogenated
hydrocarbons), as used in aerosol cans, certain types of
adhesive, certain solvents and cleaning agents, and paint, etc.

7.2.1 Possible lengths for the flue gas discharge pipe
Conventional room ventilated, type B23 according to CE.
Maximum permitted flue gas discharge lengths (L) in m
Boiler type
D (mm)
Free discharge
100
18
210-80
110
35
130
+

210-120

110
130
150

20
48
+

210-160

130
150
180

22
45
+

210-200

130
150
180

14
31
+

table 01 Flue gas discharge table for the open version
+ = Lengths up to 50m possible. For longer lengths, consult our
Technical department
When flue gas discharge pipes with diameters other than 150 mm
are used, an adapter is required: Ø150/100mm, Ø150/110mm,
Ø150/130mm or Ø150/180mm.
fig. 05

Piping for the conventional room ventilated


For each additional 90° or 45° bend, the pipe length must be
reduced by the amount shown in table 02.
D in mm
Ø
Ø
Ø
Ø
Ø

100
110
130
150
180

table 02

114494-03

R=½D
R=½D
R=D
R=D
R=D

90° bend
4.9
5.4
1.8
2.1
2.5

length in m
45° bend
1.4
5.1
1.0
1.2
1.4

Metres to be deducted per bend

7. Connecting the flue gas discharge and air supply

GAS 210 ECO PRO

7.3 Room sealed installation
The room sealed installation is based on the use of an air supply
pipe connected directly to the boiler. This increases the number of
installation options within a building, while the discharge location is
subject to less stringent requirements because the air supply and
flue gas discharge can be incorporated in the same pressure field.
Additional ventilation will be required to the room/compartment in
accordance with BS 6644-2005 (compartment ventilation).
In addition, air from outside is usually cleaner, which has a beneficial effect on the boiler service life. An air supply and flue gas
discharge table for the enclosed version of the boiler can be found
in table 03. For discharge in two different pressure fields, see Section 7.3.2.

The boilers can be installed on a flue dilution system, but must
have a total flue break to avoid boiler controls being affected
by the flue dilution fan pressures. For full details please contact
Broag.

7.3.1 Possible lengths for the air supply and flue
gas discharge
Room sealed appliance, type C33 according to CE.
Maximum acceptable flue gas discharge/air supply pipe
lengths (L) in m
Calculated with
Boiler
Pipe Ø D
concentric roof feedModel
(mm)
[m]
through Dnominal (mm)
100
100
8
130
130
+
210-80
130
150
+
150
150
+

210-120

100
130
130
150

100
130
150
150

3
22
25
+

210-160

130
150
180

150
150
150

11
22

130
150
180

130
150
150

4
13
+

210-200

table 03 Air supply and flue gas discharge table for the
enclosed version

0021H7900017

fig. 06

+=
Lengths up to 30m possible. For longer lengths, consult
our Technical department

Piping for the room sealed appliance

114494-03

GAS 210 ECO PRO

7. Connecting the flue gas discharge and air supply

When air supply and flue gas discharge pipes with diameters other
than 150 mm are used, adapters are required: Ø150/100mm,
Ø150/110mm, Ø150/130mm or Ø150/180mm and, for connection to our standard combined vertical roof feed-through sets, also
Ø180/150mm, Ø130/150mm or Ø110/150mm.

For each additional 90° or 45° bend, the pipe length must be
reduced by the amount shown in table 04.
D in mm
Ø
Ø
Ø
Ø
Ø

100
110
130
150
180

table 04

90° bend

R=½D
R=½D
R=D
R=D
R=D

length in m

4.9
5.4
1.8
2.1
2.5

45° bend
1.4
5.1
1.0
1.2
1.4

Metres to be deducted per bend

For enclosed versions, combined vertical roof feed-through sets
are available, as well as sealing plates for flat roofs, in accordance
with the following drawings. Please consult our Technical department for this option.

Epoxy layer

Int

Ext

fig. 07 Vertical roof feed-through for room sealed operation
Pdf dakdoorvoer

114494-03

7. Connecting the flue gas discharge and air supply

GAS 210 ECO PRO

7.3.2 Discharge in different pressure areas
For installations where supply and discharge points are in two different pressure zones CLV system please contact Broag Technical Dept. for further details and advice. The maximum acceptable
height difference between combustion air supply and flue gas
discharge is 36 m and the maximum acceptable length of the air
supply and flue gas discharge combined is shown in table 05.

fig. 08

Discharge in different pressure areas

Maximum permitted flue gas discharge and
air supply pipe lengths
Boiler model
D in mm
L in m
210-80
150
36
210-120
150
36
210-160
150
23
210-200
150
11

table 05 Air supply and flue gas discharge table for 'simplified

CLV system'

114494-03

GAS 210 ECO PRO

7. Connecting the flue gas discharge and air supply

7.3.3 Connection of flue gas discharge and choice

of material
Connecting the flue gas discharge:
Remove the cap from the flue gas discharge opening Ñ;
• Fit the flue gas discharge pipes seamlessly together.

• Seams and joints must be airtight and watertight or fit seamlessly.
• Horizontal parts must be oriented towards the boiler at a gradient (min.
5 cm per metre).
• Connect the pipes stress-free.
• Flue gas discharge pipes longer than 2 m must be fixed separately and
must not rest on the boiler.
Flue gas discharge:
Material:
Rigid single walled: stainless steel (316), aluminium or plastic (to comply
with building regulations).
Flexible: stainless steel (316).
Construction: all joints and seams should be gastight and watertight with
the horizontal runs graded towards the boiler (min. discharge 5 cm per
meter) to allow condensate free drainage to the boiler. Flue gas discharges longer than 2 meters must be supported independently and may not
rest on the boiler.
The flue outlet should terminate with reduction cone and bird guard only
(chinamans hat or GLC type terminals etc. should not be used).

7.3.4 Air supply connection and choice of material
Connecting air supply:
Remove air supply grille from the air supply opening Ð;
• Fit the air supply pipes seamlessly together.

• Seams and joints must be airtight and watertight or fit seamlessly.
• Horizontal parts must be oriented towards the discharge at a
gradient (min. 5 cm per metre).
• Connect the pipes stress-free.
Air supply:
Material:
Single walled, rigid or flexible: aluminium, stainless steel and plastic (to
comply with building regulations).
Air supply ducts longer than 2 meters must be supported independently
and may not rest on the boiler air inlet. Care must be taken to ensure that
if water is able to enter the duct it will run away from the boiler air inlet
connection or supply a suitable train c/w water seal trap.

7.3.5 Additional Directives
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.
114494-03

8. Control and electrical connections

GAS 210 ECO PRO

8. Control and electrical connections
8.1 General
The boiler is equipped with electronic control and safety equipment with ionisation flame protection. The advanced boiler control
(abc®), is a microprocessor that protects and controls the boiler.
The boiler is fully prewired; all external connections are made
on the terminal strips. Connect the boiler to the mains supply in
accordance with the local electricity supplier's instructions and IEE
regulations.

8.1.1 Boiler control
The heat output of the Remeha Gas 210 ECO PRO can be controlled as follows:
- Modulating, where the output modulates between the minimum
and maximum values on the basis of the flow temperature
defined by the modulating controller.
- On/off control, where the heat output modulates between
the minimum and maximum values on the basis of the flow
temperature set in the unit. This can be combined with an
outside sensor so that the internal heating curve is used.
- Analogue control (0-10 V), where the heat output or
temperature is controlled by a 0‑10 V signal, see Section 8.4.4.
Only possible with optional 0 - 10 V control PCB (IF-01).

8.1.2 Modulating controls general
The modulating nature of the boiler is used to maximum effect with
a modulating controller based on room and/or outside temperatures. If the controller demands heat, the boiler supplies the heat
output. If the controller demands a flow temperature, the boiler
modulates to this value. This increases the number of operating
hours and drastically reduces the number of starts. Combined with
the fixed gas/air mixture, this results in greater efficiency.
Various types of modulating controls can be connected, including
the following:
- Modulating room control, see Section 8.1.3;
- Modulating weather-compensated control see Section 8.1.4;
- Modulating cascade control, see Section 8.1.5.

8.1.3 Modulating room control
The boiler is set up for communication via the OpenTherm protocol. Modulating controllers can be connected according to the
OpenTherm protocol, e.g. the Remeha iSense. The controller is
mounted in a reference area. Connection is made with a two-core
cable to the On/off - OT terminals of terminal strip X6 (not polarity
sensitive).

8.1.4 Modulating weather-compensated control

rematic®
The following optional controller can be supplied by Broag-Remeha. The controller is supplied with a connection adapter and interface that are built into the boiler. The connections for this feature
are fully pre-wired.
22

114494-03

GAS 210 ECO PRO

8. Control and electrical connections

rematic® 2945 C3 K
In addition to the weather-compensated boiler pre-control, this
controller provides optimum start, dual zone weather compensation and priority DHW (if required). Fit the controller in the boiler.
Connection takes place using the supplied rematic® adapter and
the supplied interface that can be integrated in the control panel.
Refer to the relevant controller documentation for detailed information.

8.1.5 Modulating cascade controller MC4
The Remeha Celcia MC4 cascade controller is suitable for the
modulated control of 2 to 4 Remeha Gas 210 PRO boilers in cascade. This controller is wall-mounted and communicates according
the OpenTherm protocol. We recommend using our Celcia MC4
modulating cascade controller in conjunction with the iSenseTime/
Weather compensation controller. Refer to the relevant controller
documentation for detailed information.
 iSense with MC4 will only control up to 4 boilers
in cascade

8.2 Electrical specifications
8.2.1 Mains voltage
The boiler is suitable for a 230 V-50 Hz supply with live/neutral/
earth (the control is phase/neutral sensitive). Other connection
values are only acceptable if an isolating transformer is installed.
Connect the mains lead (not supplied) to the 230 V terminal strip.

8.2.2 Control box

230Vac, 50Hz, F6.3AT
L
N

Mains voltage : 230 V/50 Hz
Power consumption at: stand-by/low load/full load:
- 210-80
: 4 / 36 / 125 W
- 210-120
: 4 / 37 / 193 W
- 210-160
: 4 / 53 / 206 W
- 210-200
: 4 / 54 / 317 W
Safety time: 3.5 s
Anti-hunting time: Adaptive 1 - 10 minutes.
Pump post-circulation time: adjustable between 0 and 98 minutes
or continuous (= 99 minutes), set by default to 3 minutes
Max. power consumption of external pump: 300 VA.

8.2.3 Fuse ratings
114492LTAL21H004a

fig. 09

Connect mains lead

114494-03

The 230 V terminal strip contains the fuse F - 6.3 AT.
This is a general fuse for all connected components.
The control unit contains the fuse F1 - 1.6 AT.
This is a fuse for the mains voltage of the control unit, gas multiblock and ignition, excluding pump.

8. Control and electrical connections

GAS 210 ECO PRO

8.3 Electrical connection options
The boiler has several control, protection and regulation connection options. The standard control PCB (PCU-01) can for example
be expanded with:
• an optional 0 - 10 V control PCB (available as an accessory IF-01);
• and/or the optional expanded control/protection PCB (available as
an accessory SCU-SO1).
To install or access these PCBs, the plastic cap must be removed
from the control panel. The required external connections are
made on these (optional) PCBs. The various connection options
are detailed in the following sections.

8.3.1 Connection options of standard control unit
(PCU-01)
Connected on the standard control unit (PCU-01) is the safety unit
(SU) connected, which protects the boiler.
2

1 4x

8.3.2 On/off control (OT)
The boiler is suitable for connection to a ‘volt free’ on/off controller.
Connect the controller to the On/off - OT terminals of terminal
strip X6 (not polarity sensitive).

8.3.3 Modulating controls (OT)
The boiler is set up for communication via the OpenTherm protocol. Modulating controllers can be connected.
Connection is made with a two-core cable to the On/off - OT terminals of terminal strip X6 (it does not matter which wire is connected to which cable clamp).

8.3.4 External interlock (BL)

X4
X3

NL
BL

BL
OT

1.6 AT

Mains

on/of

Pump
N L
Pump
N L

The boiler has an external interlock switch, so that the boiler can
be shutdown in the event that this switch is not made. This input
can be used in combination with a flue gas thermostat (available
as an accessory). This input relates to the BL terminals of terminal
strip X6. Remove the wire bridge before using the input.
The input's behaviour depends on the parameter 33 setting:
1 = Normal shutdown;
2 = Shutdown without frost-protection (= default);
3 = Lock out.

RL
X11

X10

X11

X10

X6
X8

PCU-01

114492LTAL21H005e

fig. 10 Standard control PCB (PCU-01) with
safety unit (SU)

114494-03

GAS 210 ECO PRO

8. Control and electrical connections

1.6 AT

The boiler is also equipped with an input release so that the burner can be released/shutdown. This input can be used in combination with the limit switches on flue gas throttle valves, hydraulic
control valves, safety interlocks, etc. This input relates to the RL
terminals of terminal strip X6.

N L

Mains

8.3.5 Input release (RL)

Pump
N L
Pump
N L

X4
X3

PCU-01

X10

w.
re

Recom

8.3.6 Circulation pump (Pump)

RL
BL

X11

X10

on/of

X11

A pump with the following specifications can be connected:
- On/off pump with a mains voltage of 230 VAC (50 Hz) and 300
VA (maximum).

Connect the pump to the Pump terminals of terminal strip X4. The
post-circulation time of the circulation pump at the end of a heat
demand can be set according to requirements by means of a program option at user level, see Section 9.1.6.

.co

8.3.7 Connecting a PC
T000058

fig. 11

Using the optional Recom interface package a PC can be connected to the X7 “telephone connector”.
Using the Recom software you can load, change and download
various boiler settings and readings.
See the user instructions supplied with the software.

Connecting a PC

8.3.8 Connection options for the PCB - SCU - X01
X3
0 1

7 8

0 1

5 6

7 8

Status

Nc C No

2 3

X2a

5 6

SCU-X01

The PCB - SCU - X01 is equipped with two potential-free outputs
that have a capacity of max. 230 VAC/5 A reactive/2 A inductive
(cos 0.6). It also has two rotary switches with ten positions.
See the table below for the rotary switch settings.

Status

Nc C No

2 3

X2
T002747-A

Description

Alarm

Standby

C-NO

Active

C-NC

114494-03

Burning

Burning
inverted

Burning
low

Burning
high

Service
report

CHmode

DWHmode

CHpump

C-NC

C-NO

C-NC

C-NO

C-NC

C-NO

C-NC

Alarm
inverted
= fail
safe

8. Control and electrical connections

GAS 210 ECO PRO

8.4 Connection options for 0 - 10 V control PCB (IF-01)
8.4.1 Connection status (Nc)
If the boiler locks out, a relay is de-energised and the alarm can
be transmitted via a potential-free contact
(maximum 230 V, 1 A) on terminals Nc and C of terminal strip X4.

8.4.2 OTm connection

IF-01
X1

0 +

0 +
OTm
Nc C No

0-10 0-10

OTm 0 + 0 +

Status

Nc C No

The interface uses OpenTherm to communicate with the boiler
control. The OTm connection on terminal strip X5 must therefore
be connected to the OpenTherm OT input of the boiler control.

114492LTAL21H006a

fig. 12

Jumper 2

114494-03

GAS 210 ECO PRO

8. Control and electrical connections

8.4.3 Analogue input (0 - 10 V)

1
2%

This control can be based on temperature or heat output (optional). The two controls are described briefly below. Connect the 0
- 10 V signal to the interface input for analogue control.
Analogue temperature-based control ()
The 0-10 V signal controls the boiler flow temperature between
0°C and 100°C. This control modulates on the basis of flow temperature, where the heat output varies between the minimum and
maximum values on the basis of the set point flow temperature
calculated by the controller.
Jumper (2) on the interface is used to select either temperature ()
or boiler output (%) control.

114492LTAL21H023a

fig. 13

Jumper 2

Jumper
2


table 06

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

Desired temperature

Analog input signal for temperature

Analogue output-based control (%)
The 0-10 V signal controls the boiler output between 0% and
100%, where the minimum and maximum values are limited. The
minimum output is linked to the boiler's modulation depth. This
control is output modulated, where the output varies between the
minimum and maximum values on the basis of the value defined
by the controller.
Jumper
2

Ingput signal
Boiler output
Description
[V]
[%]
0 - 2,0*
0 - 20
Boiler off
2,0 - 2,2*
20 - 22
Hysteresis
%
2,0* - 10
20 -100
Desired boiler output
* Dependent on the minimum modulation dept (fan rotation speeds settings, pre set 20%)

table 07

Analogue input signal for boiler output

8.4.4 Analogue output (0 - 10 V)
If this feedback message is received, temperature or heat output
can be selected. The two are described briefly below.
1

1
2%

Jumper (1) on the interface is used to select either temperature ()
or boiler output (%).
Jumper
1

114492LTAL21H024a

fig. 14

Jumper 1

114494-03



Output signal
[V]
0,5
1- 10

Temperature
[°C]
10 - 100

Description
Alarm
Delivered temperature

table 08 Analogue output signal for temperature

8. Control and electrical connections

GAS 210 ECO PRO

Jumper Output signal
Boiler output
1
[V]
[%]
0
0 - 15
0,5
15 - 18
%
2,0* - 10
20 - 100
* Dependent on the minimum modulation dept
tings, pre set 20%)

table 09

Description
Boiler off
Alarm
Delivered boiler output
(fan rotation speeds set-

Analogue output signal for boiler output

8.5 Connection options of the optional expanded control/protection PCB
(SCU-SO1)
8.5.1 Flue gas damper control (FgV)
In a cascade configuration, a flue gas damper (available as an
accessory) prevents flue gases from being discharged through a
non-operating boiler, with flue gas cascade. Therefore, the boiler
is suitable for flue gas overpressure systems. Consult our Technical department. Connect the flue gas damper to the FgV terminals
of terminal strip X3. Also fit this flue gas damper if flue gases flow
back when the boiler is in stand-by mode.
The running time of the flue gas damper must be programmed
with parameter 29.

8.5.2 Hydraulic valve control (HdV)
FgV
N L
FgV
N L

HdV
N L
HdV
N L

4 AT

EgV
N L
EgV
N L

8.5.3 External gas valve control (EgV)

Status

SCU-S01

Wps

O S +

O S + Tout GPS VPS

Tout

Nc C No

NcC No

If there is a heat demand, an alternating voltage of 230 V 1 A
(maximum) becomes available on the EgV terminals of terminal
strip X3 to control an external gas valve. The voltage is switched
off when the gas multiblock on the boiler closes.

8.5.4 Operation signal and failure signal (Nc / No)

GPS
VPS

X2
114492LTAL21H007c

fig. 15

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 terminal strip X3. The running time of the hydraulic valve must be programmed with parameter 28.

Expanded control/protection PCB (SCU-SO1).

The alarm or operation signal is selected using the relevant
parameter 25, see Section 9.1.6. If the boiler is operational,
the alarm or operation signal can be switched via a potential-free
contact (maximum of 230 V, 1 A) on the No and C terminals of terminal strip X4. If the boiler locks out, the alarm can be transmitted
via a potential-free contact (maximum 230 V, 1 A) on terminals No
and C of terminal strip X4.

8.5.5 Water pressure sensor (Wps)
The water pressure sensor (available as an accessory) shuts
the boiler down when the minimum water pressure (0.8 bar) is
reached. To activate the water pressure sensor, a minimum pressure must be set with parameter 26 (factory setting 0 = off, see
Section 9.1.6.) The pump does not run during this shutdown.

114494-03

GAS 210 ECO PRO

8. Control and electrical connections

Connect the water pressure sensor to the Wps terminals of terminal strip X5.
0 = Earth or neutral of the power supply
S = Signal or output from the sensor
+ = Supply voltage

8.5.6 Outside temperature sensor (Tout)
To take advantage of the boiler's modulating operation during the
entire heating season, a Remeha outside temperature sensor
(available as an accessory) can be used in combination with an
on/off control or connection. Connect the on/off control or connection to the On/off terminals of terminal strip X6 on the standard
control PCB (PCU-01) and the outside temperature sensor to the
Tout terminals of terminal strip X5 on the optional expanded control/protection PCB (SCU-SO1). The unit modulates with a heat
demand from the controller or because of a connection to a flow
temperature corresponding to the outside temperature (see heating curve graph).
Fitting the outside temperature sensor
Fit the external sensor, protected against direct sunlight, to the
north or north-west of the building, at a height of at least 2.5
metres from ground level. Do not fit the outside temperature sensor near windows, doors, ventilation grills and extractors, etc.

60
2

F
40

-15

20
114492LTAL21H025b

fig. 16

Heating curve graph

F = factory setting

Heating curve setting
The maximum flow temperature setting is also the setting for the
‘top’ of the heating curve, i.e. the required flow temperature for an
outside temperature of ‑15°C. The baseline of the heating curve is
also adjustable and can be changed at service level, see Section
9.1.6. A linear relationship exists between the outside temperatures mentioned and the corresponding flow temperatures.

8.5.7 Minimum gas pressure switch (Gps)
The minimum gas pressure (available as an accessory) switch
shuts the boiler down if the inlet gas pressure becomes too low.
Connect the minimum gas pressure switch to the Gps terminals
of terminal strip X5. The presence of the gas pressure switch
must be activated using parameter 27 in the setting mode (see
Section 9.1.6).

8.5.8 G
as leakage control (VPS; only for 210- 160
and 210- 200 boilers)

The gas leakage control checks and controls the safety valves on
the gas block via a VPS system. The test takes place when the
boiler starts. In the event of a leak in the gas block, the boiler will
lock out. Connect the gas leakage control to the VPS terminals of
terminal strip X5. The presence of a gas leakage control must be
entered using parameter 31, see Section 9.1.6.

114494-03

9. Commissioning

GAS 210 ECO PRO

8.5.9 Wiring diagram
PRIMARY CONTROL UNIT - PCU-01
X01

X02

X03

X04

Pump

Mains

1 2 3

1 2 3 4

1 2 3

SAFETY UNIT
- SU-01

BL
BR

PE-4

GN/YW

On / Off

X07

BL GN/YW
X21 3 1 2

X51

GN/YW
BR

1 2

PE-11

GN/YW

X55 1

SCU-X01

X01

X03
X04

0-10V IF-01

SU-01

PCU-01

X01

PRIMARY CONTROL UNIT - PCU-01

X50

X02
X03

X09

X10

1 2 3 4

1.....6

X11
1 2

3 5

4 6 7 10

8 9

X01

PCU-01

X03

X04

X05

X91 1

X05

BR/ GL/
WH WH

Fan

X02
SCU-S01

X06

P
Flow
temp.

CORD COLORS
BL
BLUE
BL/WH
BLUE/WHITE
BR
BROWN
BR/WH
BROWN/WHITE
YW
YELLOW
GN/YW
GREEN/YELLOW
YW/WH
YELLOW/WHITE
GN
GREEN
GY
GREY
OR
ORANGE
RD
RED
WH
WHITE
BK
BLACK
BK/WH
BLACK/WHITE

BL/ BK/
WH WH

WH GN

X04

X07

2 3
Fan

Boiler
switch
on / off

N L
Power supply
230V,50Hz

X02a
SCU-X01/
X02
SCU-S01

SU-01

GN/YW
BL

X50

X05

X11
X10
X09
X08

X235 14 13 12
BR

PE-1

1 2

Elektrode

X04

GN/YW

Safety shut-off Safety shut-off
valve1
valve 2
PE-12

Ignition
transformer

PE-7

6 7 5

GN/YW

DISPLAY

6.3AT

2 1

GN/YW
BL

X235 11 9 8 10

X08

PE-2

PE-5

X06

GN/
YW

N L

PE-6

X05

1.....6
PE-2

1.....6

1 2 3
Nc C No
Status

X03

X04

X02 X02a

Return Heat exch.
temp.
temp.

Flue gas
pressure
switch
PSU
(Parameter
storage unit)

SECONDARY CONTROL UNIT
- SCU-X01
BL

GN/YW
N L

GN/YW

N L

Wps

Tout

Gps

VPs

+ -

0-10V

Status

X05

X04

OTm

Nc C No

IF-01

1 2 3

1 3 2

1.....6

X01

X02

Fgv

Hdv

X03

Egv

1 2 3
Nc C No
Status

X04

O S +

X05

SECONDARY CONTROL UNIT - SCU-S01 (OPTION)
T002609-04-C

114494-03

GAS 210 ECO PRO

9. Commissioning

9 Commissioning
9.1 Control panel
The boiler's control panel contains four function keys, a menu key,
a service engineers key, an on/off switch and a display.

1
2

8
Bar

7
114492LTAL21H008a

fig. 17

1
2
3
4

=
=
=
=

Control panel

Display
[Menu] key
[Service engineers] key
[Escape] or [reset] key

5
6
7
8

=
=
=
=

[Central heating temperature] or [-] key
[+] key
[enter] key or [Service] indicator
On/off switch

The display has four positions and several symbols and provides
information about the operating status of the boiler and any faults.
Numbers, dots and/or letters may be shown. The symbols in the
display above the function keys indicate what the function of the
relevant keys is at that moment. If no key is pressed for three minutes, the display lighting switches off and only the  and  symbols are displayed. Press any key; the current boiler status and
the current operating code appear on the display. This is always
displayed in the event of a fault.

9.1.1 Normal start-up procedure
Switch on the mains supply to the boiler; the Gas 210 ECO PRO
will perform the start-up program.
The following will appear in succession in the display:
- a short display test, whereby all of the display's segments are
visible;
fXx software version alternating with 1;
pXx parameter version;
- Afterwards (depending on the operating status), the following
may appear on the display:
N : L (flashes) : live and nutral wires are wrongly connected; change wires on the 230V terminal strip!

114494-03

9. Commissioning

GAS 210 ECO PRO

With a heat demand: 
1 Boiler starts
2 Burner starts
3 Central heating operation; briefly in part load then in full load
When a heat demand ceases:
5 Burner stops
6 Boiler stops
0 Stand-by mode
table 10 Normal operation

9.1.2 Fault during start-up procedure
If nothing appears on the display, check:
- the connection of the mains lead;
- the main fuse in the instrument box (F = 6.3 AT, 230 V);
- the fuse on the control unit (F1 = 1.6 AT, 230 V);
- the mains voltage.
• A fault code in the display is recognised as follows: the fault
symbol  appears and
the fault code flashes underneath it;
• The meaning of this fault code can be found in the fault table,
see Section 11.2.
• If possible, solve the fault first.
• Press the RESET key for 3 seconds to restart the Gas 210
ECO PRO.

If the display does not show RESET but SERVICE, the boiler must
be switched off and switched on again after 10 seconds before the
fault can be reset.

114494-03

GAS 210 ECO PRO

9. Commissioning

9.1.3 Reading current values
The following current values can be read in the ‘information
menu’
- 5t = Status
- 5u = Sub status
- t1 = flow temperature [°C];
- t2 = return temperature [°C];
- t4 = outside temperature [°C];

(only if outside sensor is connected)
- t6 = boiler block temperature [°C];
- 5p = internal set point [°C];
- fl = ionisation current [uA];
- f = fan rotation speed [rpm];
- pr = water pressure [mbar];
- p = relative output supplied [%];

bar

114492LTAL21H009c

fig. 18

Reading current values

114494-03

The current values can be read as follows:
• Press the  key, the  symbol will then flash, confirm with
the  key;
• Press the [+] key again so that 5t appears alternating with
3, the actual status;
• Press the [+] key again so that 5u appears alternating with
, the actual sub status;
• Press the [+] key again so that t1 appears, alternating with,
for example, 60°C, the actual flow temperature;
• Press the [+] key repeatedly so that the remaining temperatures
also appear;
• Press the [+] key again so that 5p appears, alternating with,
for example, 88°C, an internal set point;
• Press the [+] key again so that fl appears alternating with,
for example, u, the actual ionisation current;
• Press the [+] key again so that ñf appears alternating with,
for example, 3000 (rpm), the actual fan rotation speed;
• Press the [+] key again until pr appears alternating and, for
example, 3.0 bar, the actual water pressure
(if no water pressure sensor is connected, --.- bar appears);
• Press the [+] key again until p appears and, for example,
78 %, the actual modulation percentage;
• Press the [+] key again, the read-out cycle starts again with
5t, etc;
• Press the  key twice to return to the display with the current operating status.

9. Commissioning

GAS 210 ECO PRO

9.1.3.1 Status and sub status
In the ‘information menu’  the following status and sub status
numbers are displayed:
Number
0
1

8
9
table 11

Status 5t
Status
Stand-by mode

Number
0
1
2
Boiler starts (heat demand)
3
4
10
11
12
13
14
Burner starts
15
16
17
18
19
20
30
31
32
33
34
Burning on central heating operation
35
36
37
38
40
41
42
Burner stop
43
44
45
60
61
Boiler stop (end of heat demand)
62
63
0
Control stop
1
Shutdown
xx
Settings at service level

Sub status 5u
Sub status
Stand-by mode
Anti-hunting
Open hydraulic valve
Start pump
Wait for the correct temperatures for burner start
Open external gas valve
Fan running
Open flue gas damper
Pre-ventilation
Wait for release signal
Burner on
VPS gas leakage control
For ignition
Main ignition
Flame detection
Intermediate ventilation
Temperature control
Limited temperature control (∆T safety)
Output control
Increase protection level 1 (control modulation)
Increase protection level 2 (part load)
Increase protection level 3 (shut down)
Modulate up for flame control
Stabilisation time
Cold start
Burner off
Post ventilation
Fan running
Close flue gas damper
Stop fan
Close the external gas valve
Pump post circulation
Pump off
Close hydraulic valve
Start anti-hunting
Wait for burner start
Anti-hunting
Shutdown xx

9.1.4 Adjusting the boiler to the system
The boiler's control parameters are set to the most common central heating systems. With these settings, practically all central
heating systems will work well. However, the user or the installer
can optimise the parameters as he/she wishes.
34

114494-03

GAS 210 ECO PRO

9. Commissioning

9.1.5 Changing parameters at user level (without
access code)

The following settings can be changed at user level:
p1 = F
low temperature set point [°C], adjustable between 20
and 90°C;
p2 = Pump post-circulation time 0..98 mins, 99 is continuous;
p3 = B
oiler control; central heating on/off.
0 = Central heating off
1 = Central heating on (= factory setting)
p4 = D
isplay options
0 = Simple display
1 = Comprehensive display
2=D
isplay automatically goes to simple after three
minutes (factory setting)
* Consult our Technical department for further information and
demands on the system.

fig. 19

Changing parameters

114492LTAL21H021b

The parameters can be changed at user level as follows:
1. Press the  -key several times until the  symbol flashes in the
menu bar;
2. Select the users menu using the  -key, p1 appears (the
1 flashes);
3. Press the [+]-key; p2 appears (the 2 flashes);
3. Press the  -key again; 3 (min) appears and flashes: (factory setting);
4. Change the value by pressing the [-] -key or the [+] -key, in this
case for example to 15 min, with the [+] -key;
5. Confirm the value with the  -key, p2 appears (the 2 flashes);
6. Press the - key twice, the boiler enters the current operating
status.

The p1 to p4 settings can be changed in the same way as
p2.

9.1.6 Changing parameters at service level (with

access code)
To prevent undesired settings, some parameter settings can only
be changed after the special access code 12 is entered. This
code may only be used by qualified installers.
The following settings can be changed at user and service levels:

114494-03

9. Commissioning

May also
be changed
by users

Codes in
display

GAS 210 ECO PRO

Description

Flow temperature set point

Pump post-circulation time

Boiler control

Display

Maximum speed
central heating (natural gas)

Minimum speed
18 central heating and hot water
(natural gas)
19

Starting speed
(natural gas)

20 Maximum flow temperature CH
21

Can only be changed by the installer

22
23
24
25
26
27

Setting range and possible explanation
20 - 90°C
0 – 98 minutes
99 = continuous
0 = Central heating off
1 = Central heating on

0 = Simple display
1 = Comprehensive display
2 = Display automatically goes to simple
10 - 70
x 100 rpm
10 - 40
x 100 rpm
Do not change *

21080

Factory setting
210- 210- 210120 160 200
80
3
1
2

10 - 40
x 100 rpm
Do not change *

20 - 90°C

0 - 30°C (only with external sensor)

0 - 90°C (only with external sensor)

-30 - 0°C (only with external sensor)

- 15

-30 - 0°C (only with external sensor)

- 10

Base point heating curve outside temperature
Baseline of flow temperature
heating curve
Outside temperature climate
point heating curve
Outside temperature for frost
protection
Fault relay function
(available as an accessory)
Minimum water pressure
(available as an accessory)

0 = Operation signal
1 = Alarm signal
1 - 60:10 bar (only with water pressure sensor)
0 = off

Minimum gas pressure check
(available as an accessory)

0 = Off
1 = On (only with a minimum gas pressure sensor)

Hydraulic valve running time
(available as an accessory)
Flue gas damper running time
29
(available as an accessory)
28

30
31
32
33

34
Ad
df
and
dU

0 = no waiting time
1 – 255 s (only if connected)
0 = no waiting time
1 – 255 s (only if connected)
0 = no waiting time
Maximum time for release
1 – 255 s (only if connected)
VPS gas leakage control
0 = off
(available as an accessory)
1 = on (only with leakage control)
0 = Off
Mains detection phase
1 = On
1 = Normal shutdown
External interlock function
2 = Shutdown without frost-protection
(available as an accessory)
3 = Lock out
0 = °C / bar
Display units
1 = °F / psi
Do not modify
Automatic detection of optional 0 = No
hardware
1 = Yes, once
The type plate states the value of
Resetting factory settings
dF (X) and dU (Y); setting these values resets
the factory settings.

1
0
0
0
0
0
0
0
2

0
0
X
Y

table 12 Settings at service level
* Change this parameter when converting to flue gas cascade and LPG gas (please refer to Broag).
36

114494-03

GAS 210 ECO PRO

9. Commissioning


• The parameters at service level may only be changed by a
qualified installer.
• Changing the factory settings can result in incorrect operation of
the Gas 210 ECO PRO.
The parameters can be changed at service level as follows:
1. Press the  -key several times until the  symbol flashes in
the menu bar;
2. Select the installers menu using the  -key, 
appears in the display;
3. Use the [-] -key or [+] -key to set installers code 0012;
4. Confirm with the  -key;  appears;
5. Press the  -key again; value 80°C appears (factory setting);
6. Lower the value, for example to 60°C, with the [-] key;
7. Confirm the value with the  -key;  appears;
8. Set other parameters where required by selecting them with the
[-] -key or [+] -key;
9. Press the - key twice, the boiler becomes operational.

Gas 210 ECO PRO also returns to operation if no keys are
pressed for 10 minutes.

fig. 20

Setting service code

114494-03

114492LTAL21H018b

9. Commissioning

GAS 210 ECO PRO

9.1.7 Resetting factory settings

• Press the  -key several times until the  symbol flashes in
the menu bar;
• Select the installers menu using the  -key, 
appears in the display;
• Use the [-] -key or [+] -key to set installers code 0012;
• Confirm with the  -key;  appears;
• Press the [+] -key several times, df X appears;
• By default, the current value X for dF appears on the display; as
a check, compare this with the
value of X on the type plate; enter the value of X on the type
plate with the [-] key or the [+] key.
• Press the  key again, dU Y appears;
• By default, the current value Y for dU appears on the display;
as a check, compare this with the value of Y on the type plate;
enter the value of Y on the type plate with the [-] key or the [+]
key.
• Press the  key to confirm the values; the factory settings
have been reset.

114492LTAL21H010a

fig. 21

Resetting factory setting

114494-03

GAS 210 ECO PRO

9. Commissioning

9.1.8 Setting manual operation ( symbol)

In some cases, it may be necessary to set the boiler to manual
operation, for example when the controller has not yet been connected. The boiler can be set to automatic or manual operation
under the  symbol. Do this as follows:
• Press the  -key several times until the  symbol flashes in the
menu bar;
• Press the  -key once, either the minimum flow temperature
or AUt) (only if an external sensor
has been connected) will appear in the display; the flow
temperature is determined by the internal heating curve;
• or 20°C (minimum flow temperature) will appear in the display;
• Press the [+] -key to increase this value in manual operation
temporarily;
• Confirm with the  -key;
• The boiler is now set to manual operation;
• Press the  -key twice to exit manual operation; the boiler
enters operating status.

Manual operation keeps active after power breakdown.
114492LTAL21H019a

fig. 22

Setting manual operation

9.2 Commissioning

Ensure that the boiler is disconnected from the power supply.
1. Remove front panel.
2. Open the main gas cock.
3. Check the electrical connections including earth.
4. Fill the boiler and the system with water

(minimum pressure 0.8 bar).
5. Vent the system.
6. Fill the trap with clean water.
7. Check the flue gas discharge connection and air supply
connection.
8. Vent the gas pipe (only vent pipework from

gas isolation valve).
9. Open the gas cock in the gas pipe to the boiler.
10. Check the gas connection for leakage.
11. Switch on the mains supply to the boiler.
12. Adjust the boiler and any external controls to heat demand.
13.
The boiler now starts to run.

114494-03

9. Commissioning

GAS 210 ECO PRO

Operation can now be monitored via the code window:
With a heat demand: 
1 Boiler starts
2 Burner starts
3 Central heating operation; briefly in part load then in full load
When a heat demand ceases:
5 Burner stops
6 Boiler stops
0 Stand-by mode
15 Check and, if necessary, correct the gas/air ratio control
setting.

Perform the check at full load and minimum load for all boiler
models. Only perform settings for the 210-80 and 210-120 models
at minimum load. Perform settings for the 210-160 and 210-200
models at full load and minimum load. An electronic CO2 or O2
meter is required for checking and adjustment purposes. Check
that the opening around the probe is properly sealed when meas
urements are taken.

2
CO2

 = full load
T000239-C

fig. 23

Setting values CO2

Boiler type
210-80
210-120
210-160
210-200

table 13

Boiler type
210-80
210-120
210-160
210-200

15.a Set full load: press the  key, the  symbol appears in the

menu bar; if h3 appears in the display, full load has been set.
15.b Now measure the CO2 percentage and compare it with the

values in table 13. If the CO2% level deviates from these

values, set the CO2 percentage using the screw under the

cap of the V2 coil on the gas block (this can only be adjusted

on the 210-160 and 210-200 models). Check the flame

through the inspection glass (at full load): the flame must not

blow off and the burner's surface must not be red hot.

Checking and setting values O2/CO2 for natural gas (H) at full load
Control
Setting marControl
O2
Fan speed (rpm)
CO2
margin
gin
margin
%
%
%
%
%
Full load h:3
5100
6400
4800
5700

8.8
8.8
8.8
8.8

±
±
±
±

0.7
0.7
0.5
0.5

n/a
n/a
± 0.3
± 0.3

5.2
5.2
5.2
5.2

Checking and setting values O2/CO2 for natural gas (front housing removed)

±
±
±
±

1.3
1.3
0.9
0.9

Checking and setting values O2/CO2 for natural gas (H) at minimum load
Control
Setting marControl
O2
Fan speed (rpm)
CO2
margin
gin
margin
%
%
%
%
%
Minimum load L:3
1200
1300
1000
1200

9.3
9.3
9.3
9.3

±
±
±
±

0.5
0.5
0.5
0.5

±
±
±
±

0.3
0.3
0.3
0.3

4.3
4.3
4.3
4.3

±
±
±
±

0.9
0.9
0.9
0.9

Setting
margin
%
n/a
n/a
± 0.5
± 0.5

Setting margin
%
±
±
±
±

0.5
0.5
0.5
0.5

table 14 Checking and setting values O2/CO2 for natural gas (front housing removed)
40

114494-03

GAS 210 ECO PRO

9. Commissioning

15.c Set minimum load: press the [-] -key and, when l 3
appears in the display, minimum load has been set.
15.d After minimum output has been reached, check the CO2
percentage and compare it with the value in table 14. If the
CO2% level deviates from these values, set the CO2
percentage using the correction screw of the pressure
controller on the gas block (for the 210-80 and 210-120
models, adjustments are only made at minimum load).

CO2

2
 = minimum load
T001791-B

fig. 24 Setting values CO2 for 210-160 and
210-200

CO2
CO2


The boiler is supplied with a number of basic settings.
burner control - modulating on the basis of flow temperature
maximum flow temperature - 80°C
If other values are required: see Section 9.1.6.
15.e Remove measuring equipment and seal measuring points.
16. Check gas leakage control (VPS if installed = available as an
accessory):
Then set the gas leakage control pressure switch to a switch pressure equal to 50% of the inlet pressure. Check that the measured
inlet pressure is not the (higher) closing pressure.
17. Press the ‘reset’ key to reset the boiler to 'user level'.
18. Heat the system up to roughly 80°C if possible and switch
the boiler off.
19. Vent the system and check the water pressure.
20. The boiler is now ready for operation.
21. Set the boiler control to the required values and write down
the connected type of gas on the boiler type plate: e.g. G20
– 25 mbar.
22. Switch the boiler on.

2
114492LTAL21H020a

fig. 25

Setting values CO2 for 210-80 and 210-
120 (only minimum load)
Gas / Gaz / Gáz
H (G20)
ø 8.4 mm
8. 4


If the CO2% with the 210-80 and 210-120 still deviates on full load:
- adjust part load (see point 15.c and 15.d)
- check full load (see point 15.b) ; if the CO2% deviation is still too
large;
- check the size and placing of the restrictor (natural gas; 8.4 mm)
The following operating modes are now available:
23.a Modulating operation: The heat output of the boiler
modulates on the basis of the flow temperature demanded by the modulating controller, see ‘Note’ in point 22
and Section 8.1.2.
23.b On/off operation: the boiler modulates between minimum and maximum heat output on the basis of the flow
temperature set in the boiler, see Section 8.3.2.

114492LTAL21H027

fig. 26

Check size and positioning of restrictor

114494-03

9. Commissioning

GAS 210 ECO PRO

9.3 Taking the boiler out of operation
The boiler must be switched off for maintenance or repair work. If
the central heating system is not going to be used for a long time
(for example, during holidays in frost-free periods), it is advisable
to put the boiler out of operation.

9.3.1 Boiler with frost protection, out of operation

for a long time
• Set the controller low, for example to 10°C;
The Gas 210 ECO PRO will now only come into operation to protect itself against freezing, (= depending on parameter 33, see
table 11).
To prevent radiators and the system from freezing in rooms where
there is a risk of frost (e.g. garage or storage room), a frost thermostat can be connected to the boiler. The boiler will then keep
the radiators in that room warm.

This frost protection does not work if the boiler is out of operation.

9.3.2 Boiler without frost protection, out of

operation for a long time
• Isolate the mains power supply from the boiler;
• Close the boiler gas cock.

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.

114494-03

GAS 210 ECO PRO

10. Inspection and maintenance

10. Inspection and maintenance
10.1 General
The boiler is virtually maintenance free; it only has to be inspected
once a year and only if necessary be serviced/cleaned.
The annual inspection of the boiler includes:
- combustion check of the boiler (the fan draws in the
combustion air through the venturi. Clean the fan, venturi and
burner if there are irregularities);
- cleaning the trap;
- checking the ignition electrode;
- leakage check (water, flue gas and gas);
- water pressure check.

10.2 Combustion check of the boiler
Combustion is checked by measuring the O2/CO2 percentage in
the flue gas discharge duct. To do this, heat the boiler to a water
temperature of approx. 70°C. The measurements must meet
the values set in table 13. The flue gas temperature can also be
measured at the measuring point in the flue gas discharge duct. If
the flue gas temperature exceeds the return temperature by more
than 30°C, this can indicate that the heat exchanger is dirty.
If these checks show that combustion in the boiler or heat transmission is no longer optimum, corrective maintenance must be
carried out in accordance with the instructions in Sections 10.2.1
to 10.2.4.

10.2.1 Corrective maintenance
This should include cleaning the fan, venturi, the heat exchanger
and the burner. These parts must be cleaned in succession.
A service kit which contains gaskets and most used parts for maintenance is available as an accessory.

Work on the boiler
Disconnect the mains supply, close the main gas cock and allow
the boiler to cool down before working on the boiler.

114494-03

10. Inspection and maintenance

GAS 210 ECO PRO

10.2.2 Cleaning the fan

230 V

2
6
4
5
7

For the 210-80 and 210-120 versions:
Remove the electrical connections from the fan.
1. Unscrew the union nut under the gas multiblock

(pay attention to the sealing).
2. Remove the bolts from the outlet side of the fan.
3. Remove the fan, including venturi and gas multiblock.
4. Remove the bolts on the inlet side of the fan.
5. Detach the venturi from the fan.
6. Clean the fan with a plastic brush.
7. Remove loose dust from the fan.
8. Re-attach the venturi to the fan.
9. Detach the air silencing tube from the venturi.
10. Clean the venturi with a plastic brush.
11. Refit all removed components; check the correct positioning of

the gasket ring between fan and venturi.

9
12
10
11

230 V

14
114492LTAL21H028b

fig. 27

Cleaning the fan 210-80 and 210-120

114494-03

GAS 210 ECO PRO

10. Inspection and maintenance

1
2

For the 210-160 and 210-200 versions:
1. Remove the electrical connections from the fan.
2. Remove the bolts that fix the venturi on the fan.
3. Remove the bolts and the nuts from the outlet side of the fan.
4. Remove the fan (pay attention to the sealing).
5. Clean the fan with a plastic brush.
6. Remove loose dust from the fan.
7. Detach the air silencing tube from the venturi.
8. Clean the venturi with a plastic brush.
9. Refit all removed components; check the correct positioning of
the gasket ring between fan and venturi.

5
6

11
10

9
114492LTAL21H029b

fig. 28

Cleaning the fan 210-160 and 210-200

114494-03

10. Inspection and maintenance

GAS 210 ECO PRO

5/6 leden

10.2.3 Cleaning the heat exchanger (flue gas side)

Caution: The sealing between the inspection hatch and heat
exchanger may stick, as may the sealing between the burner and
heat exchanger Prevent the sealing from tearing.
Damaged or hardened sealing must always be replaced.
1. Remove the nuts from the inspection hatch at the front of the
heat exchanger.
2. Take the inspection hatch off the heat exchanger.
3. Clean the heat exchanger with special cleaning tool (available
as an accessory) or compressed air.
4. Clean the condensate collector by removing the plug (in front of
the flue gas discharge pipe) and rinsing the collector with water.
5. Now refit all removed components.

5/6 leden
2

5/6 leden
3

6
5

114492LTAL21H013a

fig. 29

Cleaning heat exchanger

114494-03

GAS 210 ECO PRO

10. Inspection and maintenance

10.2.4 Cleaning the burner
2

1
1
2

1. Dismantle the burner.
2. Check burner visually and if necessary clean carefully with air
(e.g. compressed air at between 2 and 5 bar,
nozzle - burner distance approx. 1 cm).
3. Now refit all removed components.

Ensure that cables do not come into contact with hot boiler parts!

1cm

5
2-5 bar

6
8
8
7

114492LTAL21H014a

fig. 30

Cleaning burner

114494-03

10. Inspection and maintenance

GAS 210 ECO PRO

10.3 Cleaning the trap
Remove the trap from the boiler and clean it.
Fill the trap with fresh water and fit it.

10.4 Checking the ignition electrode
Check the ignition electrode adjustment (between 3 and 4 mm)
and replace electrode if necessary (including sealing). Also check
the electrode's porcelain for hairline fractures because this may
cause spark-over.

3 ... 4 mm
114492LTAL21H030

fig. 31

Check the ignition electrode

10.5 Checking for leaks
Check for water, flue gas and gas leaks.

10.6 Checking water pressure
The water pressure must be a minimum of 0.8 bar. The water
pressure also depends on the height of the central heating system
above the boiler (static pressure, 1 bar = 10 m high). It is recommended to fill the system to approx. 0.8 bar above this static pressure.

10.7 Putting boiler back into operation
1. Open the gas cock in the gas pipe to the boiler.
2. Switch on the mains supply to the boiler.
3. Adjust the boiler and any external controls to heat demand.
4. Perform another flue gas analysis (see Section 9.2 and adjust if
necessary.

114494-03

GAS 210 ECO PRO

11. Faults

11. Control stops and faults
11.1 General
The boiler is fitted with an advanced control unit. The heart of the
control is a microprocessor, the abc®, which both protects and
controls the boiler.

11.2 Control stops and faults
Control stop:
The control stop is a (temporary) boiler operating mode due to an
abnormal situation. The boiler switches to the neutral position so
that it can return to a normal state. The display then shows the
shutdown status (with code 9) again. The boiler control unit will, at
first, try several times to start the boiler again. The boiler shall operate again when the causes of the control stop have been removed.
Fault:
If the shutdown condition still exists even after various automatic
control unit start attempts have been made or if a non-reproducible phenomenon has arisen, the boiler switches to fault mode
(also known as lock-out). The boiler can only resume operation
if the cause of the fault is rectified and the ‘RESET button’ is
pressed

11.3 Control stop codes
The boiler display will show code 9.
The control stop codes can be read out as follows:
• Push the - key, and then the - key;
• The display shows  = 9;
• Push the [+]- key one time; the display shows 5u and the
control stop code.

The boiler shall start automatically when the causes of the control
stop have been removed.

114494-03

11. Faults

Code
5u

GAS 210 ECO PRO

Description

Parameter fault

Maximum flow temperature
exceeded

Maximum heat exchanger temperature exceeded

Maximum heat exchanger temperature increase exceeded

Possible cause

Check/solution
• Reset dF and dU
• Reset with RECOM PC

• No flow or insufficient flow

Check:
• Flow and/or reason
for heat demand

• No flow or insufficient flow
during heat demand

Check:
• Flow (direction, pump, valves)
• That the system has been correctly bled
• Temperature sensors for deviations
• Water pressure in the system
• Whether the heat exchanger is dirty

• No flow or insufficient flow
• Sensor fault

Check:
• Flow (direction, pump, valves)
• That the system has been correctly bled
• Temperature sensors for deviations
• Water pressure in the system
• Whether the heat exchanger is dirty

Maximum difference between
heat exchanger and return temperature exceeded

• No flow or insufficient flow
during heat demand
• Sensor fault

Check:
• Flow (direction, pump, valves)
• That the system has been correctly bled
• Temperature sensors for deviations
• Water pressure in the system
• Whether the heat exchanger is dirty

Maximum difference between
heat exchanger and flow temperature exceeded

• No flow or insufficient flow
during heat demand
• Sensor fault

Check:
• Flow (direction, pump, valves)
• That the system has been correctly bled
• Temperature sensors for deviations
• Water pressure in the system
• Whether the heat exchanger is dirty

Waiting time release signal drift

• External cause
• Incorrectly set parameter
• Bad connection

• Remove external cause
• Check the parameter
• Check the connection

Phase and neutral of mains supply mixed up

• Mains supply incorrectly wired
• Floating or 2-phase system

• Reconnect phase and neutral
• Set parameter 32 to 0

Shutdown interlock active

• External cause
• Incorrectly set parameter
• Bad connection

• Remove external cause
• Check the parameter
• Check the connection

• External cause
Shutdown interlock active or frost
• Incorrectly set parameter
protection active
• Bad connection

• Remove external cause
• Check the parameter
• Check the connection

• BUS connection inadequate or
Communication fault with SCU (=
non-existent
• SCU PCB not present
optional PCB)
(any longer) in boiler

• Reconnect
• Carry out automatic detection

Water pressure too low

• Water pressure non-existent or
too low
• Incorrect water pressure
parameter adjustment
• Water leakage

Check:
• Water pressure in the system
• Minimum water pressure
• That hydraulic pressure sensor is
properly installed /connected

Gas pressure too low

• No flow or insufficient flow
• Incorrect GPS switch
adjustment
• Wiring defect or switch faulty

Check:
• That the gas cock is fully opened
• That there is adequate gas pressure
• That the GPS switch is properly
installed
• Replace the GPS switch if necessary

Configuration fault or SU
not recognised

• Incorrect SU PCB for this boiler

• Replace SU PCB

16 *

114494-03

GAS 210 ECO PRO

11. Faults

Code
5u

Description

Possible cause

Check/solution

17 *

Configuration fault or default
parameters table incorrect

• PCU-01 unit parameters
incorrect

• Replace PCU-01 unit

18 *

Configuration fault or parameter
storage unit (PSU) not recognised

• Incorrect PSU PCB for this
boiler

• Replace PSU PCB

19 *

Configuration fault or dF-dU
parameters unknown

20 *

Configuration procedure active

• Standard briefly activated
following boiler switch-on

• No action

Communication fault with SU-01

• Bad connection

• Check that the PCB is inserted in the
correct connector

No flame during operation

• No ionisation current

Check:
• That the gas cock is fully opened
• That the gas pressure is sufficient
• That the gas block is appropriately
adjusted and working correctly
• Whether the air supply or flue gas
discharge are blocked
• The flue gas circulation; inspect the
flue gas discharge system for
installation faults and the heat
exchanger for leaks

VPS test failed

Check:
• That the gas cock is fully opened
• That the gas pressure is sufficient
• Gas pressure non-existent or
• That the VPS switch is properly
too low
installed
• Faulty gas valve
• Whether the gas valve is leaking or in
• Incorrect adjustment of the VPS
the open position
switch
• That the wiring is OK; mix up of the V1
• Wiring fault
and V2 plugs
• Faulty VPS switch
• The adjustment of the VPS switch
• Replace the VPS switch if necessary
• Replace the gas valve if necessary

Internal fault SU-01

• Add/check dF and dU

• Replace SU-01

* These lock-outs are not stored in the failure memory.

table 15

Control stop codes

11.4 Fault codes
The boiler displays the fault codes as follows:
é 12 (the display shows the  symbol and the fault code
flashes). The meaning of the fault codes can be found in the fault
table, see table 16.
In the event of faults, proceed as follows:
• Note the fault code.

The fault code is needed to find the cause of the fault quickly and
correctly and for any support from our Customer Care Department.

114494-03

11. Faults

GAS 210 ECO PRO

• Press the “RESET- key” for 2 seconds. If the fault code continues to appear, look for the cause in the
following fault table and rectify the fault.

If the display does not show RESET but SERVICE, the boiler must
be switched off and switched on again after 10 seconds before the
fault can be reset.
Fault
code

Description

Possible cause

Check/solution

E:00

Storage unit parameter not
found

• Bad connection

• Check the cable bundle

E:01

Safety parameters not in
order

• Bad connection

• Check the cable bundle

E:02

Heat exchanger temperature
sensor short circuited

E:03

Heat exchanger temperature
sensor open circuit

•
•
•
•
•
•

Bad connection
Defective sensor
Sensor not correctly mounted
Bad connection
Defective sensor
Sensor not correctly mounted

•
•
•
•
•
•

E:04

Heat exchanger temperature exceeded below normal
range

Bad connection
Defective sensor
Sensor not correctly mounted
No or to little flow

E:05

Heat exchanger temperature
exceeded above normal
range
(high limit thermostat)

•
•
•
•

• Check the cable bundle
• Replace the sensor if necessary
Check:
• flow (direction, pump, valves)
• if system has been correctly bled
• temperature sensors for deviations
• if sensor is correctly mounted
• water pressure in the system
• if heat exchanger is dirty

E:06

Return temperature sensor
short circuited

E:07

Return temperature sensor
open circuit

•
•
•
•
•
•

Bad connection
Defective sensor
Sensor not correctly mounted
Bad connection
Defective sensor
Sensor not correctly mounted

E:08

Return temperature exceeded below normal range

•
•
•
•

Bad connection
Defective sensor
Sensor not correctly mounted
No or to little flow

E:09

E:10
E:11

Return temperature exceeded above normal range

• Defective sensor
Too great a difference
between heat exchanger and • No or to little flow
• Sensor not correctly mounted
return temperature

Check the cable bundle
Replace the sensor if necessary
Check if sensor is correctly mounted
Check the cable bundle
Replace the sensor if necessary
Check if sensor is correctly mounted

• Check the cable bundle
• Replace the sensor if necessary
• Check if sensor is correctly mounted
• Check the cable bundle
• Replace the sensor if necessary
• Check if sensor is correctly mounted
• Check the cable bundle
• Replace the sensor if necessary
Check:
• flow (direction, pump, valves)
• if system has been correctly bled
• temperature sensors for deviations
• if sensor is correctly mounted
• water pressure in the system
• if heat exchanger is dirty
•
• Replace the sensor if necessary
Check:
• flow (direction, pump, valves)
• if system has been correctly bled
• temperature sensors for deviations
• water pressure in the system
• if heat exchanger is dirty
• if sensor is correctly mounted

114494-03

GAS 210 ECO PRO

Fault
code

Description

E:12

Trap protection activated

E:14

5 failed burner starts

E:15

5 failed gas leakage controls

E:16

False flame signal

E:17

Gas valve control fault

E:32

Flow temperature sensor
short circuited

114494-03

11. Faults

Possible cause

Check/solution

• Check the cable bundle
• Check that the trap is not empty; top up
if necessary
• Bad connection
• Blockage in flue gas discharge/RGA
• Pressure in flue gas discharge duct
covered
is (was) too high
• Cascade valve does not open
• air supply obstructed
• Trap is blocked
• Heat exchanger is dirty
• check the air supply
Check:
- connection between ignition cable and
transformer
- electrode distance, this must be 3 to 4 mm
- breakdown to earth
• No ignition spark
- condition of the burner set
(burner set/electrode seal)
- earthing
- bad actuation on SU board
Check:
- is the gas cock opened?
- is the inlet gas pressure sufficient?
- is the gas pipe vented?
- correct gas block operation and
• Ignition spark, but no flame
adjustment?
- is the air supply or flue gas discharge
blocked?
- condition of cable bundle to gas block
- bad actuation on SU board
Check:
- condition of the electrode and earthing
- condition of cable bundle between ignition
• Flame, but insufficient ionisation
cable and transformer
- if gas cock is fully opened
- if the gas pressure is sufficient
• Is the gas cock opened?
• Is the gas pressure sufficient?
• Are the VPS switches correctly fitted?
• Defective gas valve
• Gas valve is leaking or is stuck in the
• No or to little gas pressure
open position.
• VPS switch wrongly adjusted
• Is the wiring in order, plugs V1, V2 not
• Bad connection
mixed up?
• Defective sensor
• Check the VPS settings
• Sensor not correctly mounted
• Replace the sensor if necessary
• Check if sensor is correctly mounted
• Burner glows as a result of a high CO2
percentage (adjust CO2).
• Ionisation current has been meas• Check the ignition/ionisation electrode
ured, while there may not be a flame
• Gas valve is leaking or is stuck in the
• Defective ignition transformer
open position.
• Replace ignition transformer
• Bad connection
• Check the cable bundle
• Defective gas valve
• Replace the gas valve if necessary
• Check the cable bundle
• Bad connection
• Replace the sensor if necessary
• Defective sensor
• Check if sensor is correctly mounted
• Sensor not correctly mounted

11. Faults

GAS 210 ECO PRO

Fault
code

Description

Possible cause

Check/solution

E:33

Flow temperature sensor
open circuit

• Bad connection
• Defective sensor
• Sensor not correctly mounted

E:34

Fan fault

• Bad connection
• Defective fan

Flow and return swopped

•
•
•
•

Flame loss occurs 5 times

• Ionisation current drops out

• Check the cable bundle
• Replace the sensor if necessary
• Check if sensor is correctly mounted
• Fault in fan cabling
• Defect in fan
• (Too) much draught over boiler, so that
the fan starts to rotate
Check:
- flow direction
- temperature sensors for deviations
• Replace the sensor if necessary
• Inlet gas pressure sufficient? Inlet gas
pressure controller in order?
• Correct gas block operation and
adjustment?
• Blockage in air supply or flue gas
discharge?
• Flue gas circulation, check flue gas
system for installation faults and the
heat exchanger for possible leaks
• Check SU board is correctly inserted in
the connector on the PCU-01

E:35

Defective sensor
Wrong flow direction
Bad sensor connection
Sensor not correctly mounted

E:36

E:37

Communication fault with SU
• Bad connection
board

E:38

Communication fault with
SCU board (optional)

E:39

table 16

• Bad connection

• External cause
Shutdown input in locked-out
• Incorrectly set parameter
mode
• Bad connection

• Check the cable bundle
• Remove external cause
• Check the parameter
• Check the cable bundle

Fault codes

11.5 Control stop - and fault memory
The boiler control unit has a control stop and fault memory. This
stores the last 16 control stops and the last 16 faults that have
occurred.
With each fault, the following data is saved:
- B or E = control stop or fault code
- 
= Number of times that the fault has occurred

in succession
- hr = Burner operating hours since time of fault
- 5t = status
- 5u = sub status
- t1 = flow temperature [°C];
- t2 = return temperature [°C];
- t4 = outside temperature [°C];
- t6 = boiler block temperature [°C];
- 5p = internal set point [°C];
- fl = ionisation current [uA];
- f = fan rotation speed [rpm];
- pr = water pressure [mbar];
- p = relative output supplied [%];

114494-03

GAS 210 ECO PRO

12. Service parts

11.5.1 Reading faults

• Press the  -key several times until the  symbol flashes in
the menu bar;
• Press the  key; B xx will flash in the display, together
with the number of shutdowns that have been memorised;
• Press the [+] or [-] key to select either the control stops B or
faults Er.
• Press the  key; B xx will flash in the display, together
with the number of shutdowns that have been memorised;
• Press the [+] or [-] -key to go forwards or backwards in the list
of faults.
• Press the  -key to take a closer look at the fault.
Press the [+] or [-] -key to view the following information:
b12 (shut down code b with fault number e.g. 12);
 (number of  with the 'number of times that the fault has
occurred’ as number);
hr = 2 (burner operating hours since time of fault) ;  (status code) ; 5u (sub status);
t180 (temperature t1, the flow temperature 80 when
the fault occurred);
t270 (temperature t2, the return temperature 70
when the fault occurred);
• Press the  -key to stop the cycle, B xx will appear
flashing in the display with the number of the last fault;
• Press the [+] or [-] -key to view any subsequent fault information.
t/m

t/m

2x
114492LTAL21H015a

fig. 32

Reading faults or control stops

11.5.2 Deleting control stops or faults
The last message in the list in the display is  (or
b with shutdowns)
• Press the  -key; the display will show: 0
• Press the [+] -key to set the parameter to 1.
• Press the  -key ; the fault memory is cleared
• Press the - key twice to exit the fault memory.


With faultfinding, retrieving the operating status when the fault
occurred can contribute to faster rectification of the cause.

fig. 33

Deleting faults

114494-03

12. Service parts

GAS 210 ECO PRO

12. Service parts
12.1 General
If it is ascertained during the annual inspection or maintenance
work that a part in the boiler must be replaced, use only original
parts or parts and materials recommended by Broag.
Send the part to be replaced to Broag. Always send a fully completed return form as well, see example. In this way, Broag can
handle its guarantee obligations faster and more efficiently.
Your reference

Date

Customer
Name
Address
Zip code / city
Telephone
Contact person
Job number
Part. no.

Description

Boiler
serial nr.*

Model

Installation
date

Problem desReference
cription

t
able 17
Return form sample
* This data can be found on the boiler type plate; the type plate is stuck to the top of the boiler's right side panel.

114494-03

GAS 210 ECO PRO

12. Service parts

12.2 Exploded view

210-80
210-120

210-160
210-200
210-200

210-80
210-120
210-160

210-200

210-80
210-120
210-160
210-200

114492EVAL21H001b

fig. 34

Exploded view

114494-03

13. Regulations

GAS 210 ECO PRO

13. Regulations
13.1 General
The Remeha Gas 210 ECO PRO is a high efficiency, floor standing central heating boiler, suitable for use with all types of natural
gas; it recovers both perceptible and latent heat from flue gases.
The units are inspected on the basis of the essential requirements
in the following directives:
- Gas Appliances Directive
no. 90/396/EEC
- Efficiency Requirements Directive no. 92/42/EEC
- EMC Directive
no. 89/336/EEC
- Low Voltage Directive
no. 73/23/EEC
- Pressure Equipment Directive
no. 97/23/EEC, article 3, sub. 3
CE identification number: 0085BS0132
NOx class: 5
NOx identification number: BS004

13.2 Standards
The following instructions must be adhered to when the Remeha
Gas 210 ECO PRO is installed:
- Gas Safety (Installation and Use) Regulations 1998 (as amended).
In addition to the above regulations, this boiler must be installed
in compliance with:
- Current I.E.E. Regulations for electrical installations
- Local building regulations
- The Building Standards (Scotland)
- (Consolidation) Regulations
- by-laws of the local water undertaking
- Health and Safety Document No 635 'The Electricity at Work
Regulations 1989'.
It should also be in accordance with the relevant recommendations
in the current edition of the following British Standards and Codes
of Practice, viz. BS 6644, BS 5978 Part 1 & 2, BS 5449, BS 5446,
BS 6798, BS 6891 and BG DM2.

13.3 Remeha factory test
Before leaving the factory, every Remeha boiler is optimally set
and tested for:
- electrical safety;
- CO2 adjustment;
- hot water operation;
- water tightness;
- gas tightness;
- control unit parameters.

114494-03

GAS 210 ECO PRO

13. Regulations

13.4 Supplementary guidelines
In addition to the regulations and guidelines mentioned in Section
13.2, the supplementary guidelines in this documentation must
also be followed. Supplements or subsequent regulations and
guidelines in existence at the time of installation shall apply to all
regulations and guidelines mentioned in this Installation and Service manual.

The Remeha Gas 210 ECO PRO is a CE certified boiler and must
not be modified or installed in any way contrary to these
"Installation and Maintenance Instructions". Manufacturers
Instructions must NOT be taken as overriding statutory obligations.

114494-03

14. Technical specifications

GAS 210 ECO PRO

14. Technical specifications
14.1 Technical data
Boiler type Gas 210 ECO PRO

Unit

210-80

210-120

210-160

210-200

General
Number of sections
Input control
Nominal output (80/60°) Pn
Nominal output (50/30°) Pn
Nominal input gross caloric value
(GCV/Hs) Qn
Nominal input net caloric value
(NCV/Hi) Qn
Gas and flue gas side
Category
Inlet gas pressure natural gas
Gas consumption natural gas

min
max

NOX emission per year (BREEAM)
(EN 15420)
Residual fan pressure
Flue gas quantity

Modulating, 0-10 V or on/off

min
max
min
max
min
max
min
max

min
max

Type classification with respect to flue gas
discharge
Central heating side

kW
kW
kW
kW
kW
kW
kW
kW

16
87
18
93
19
99
17
89

22
120
24
129
26
137
23
123

II2H3P

mbar

17 - 30

29
166
33
179
34
189
31
170

39
200
44
217
46
228
41
205

m03/h
m03/h

1.8
9.4

2.4
13.0

3.3
18.0

4.3
21.7

mg/kWh

130

kg/h
kg/h

27.2
149.7

36.7
206.9

49.5
286.0

65.5
344.9

B23, B23P, C13, C33, C43, C53, C63, C83

High limit temperature

°C

110

Operating temperature range

°C

20 - 90

Minimum water working pressure

bar

0.8

Maximum water working pressure PMS

bar

Water content

litres

Hydraulic resistance at dT = 20°

mbar
(kPa)

165
(16.5)

135
(13.5)

170
(17)

180
(18)

4
125

4
193

4
206

4
317

165

188

Electrical
Mains voltage
Input power
(without pump)
Insulation class

V/Hz
min
max

Watt
Watt

230/50

Other
Weight excluding water
Noise level at a distance of 1 m from the
boiler (enclosed version)
Environment temperature
Colour of casing

table 18

kg
dB(A)

115

135
≤ 59

°C

0 - 40

RAL

2002 (red)/7037 (grey)

Technical data

114494-03

GAS 210 ECO PRO

15. Efficiency data and gas inspection labels

15. Efficiency data and gas inspection labels
15.1 Unit usable efficiency (HR efficiency)
Up to 108.6 with respect to Hi at TReturn = 30°C.

15.2 Water-side efficiency
a. Up to 98.4% with respect to Hi at full load at an average water
temperature of 70°C (80/60°C).
b. Up to 105.7% with respect to Hi at full load an average water
temperature of 40°C (50/30°C).

15.3 Zero-load losses
Approx. 0.21% with respect to Hi at an average water temperature
of 45°C.

15.4 Description of specifications
High efficiency gas boiler
Inspected for compliance with the essential requirements of the
Gas Appliances Directive, Efficiency Directive, Low Voltage Directive and EMC Directive.
- Boiler conforms to Pressure Equipment Directive (article 3, sub. 3).
- Modulating (18 - 100%) or 0-10V or on/off control is optional.
- Hydraulic efficiency up to 98.4% at full load (with respect to Hi)
at 80/60°C and up to 105.7% (with respect to Hi) at 50/30°C.
- Suitable for use with II2H3P
- Annual NOX emissions < 62 mg/kWh, or < 35 ppm at O2 = 0%
(NOx - class 5).
- Average boiler housing noise level at 1 m distance around
boiler ≤ 59 dBA
- Heat exchanger made of cast aluminium sections.
- Cylindrical, stainless steel, premix burner with metal fibre cover.
- Air supply fan.
- Flue gas pressure difference switch.
- Temperature control: adjustable between 20 - 90°.
- Low water level protection using temperature sensors.
- Gas/air mixing system (venture).
- Gas multiblock (210-80 + 210-120 ;230V) (210-160 + 210-200;
30 RAC)
- Electronic control and protection equipment: 230 V.
- Fan; 230V
- Pump switch: on/off 230 V max. 300 VA.
- Frost protection.
- Filling and drain cock.
- Trap.
- Suitable for both room ventilated and room sealed versions.
- Sheet steel casing, off the ground.
- Plastic condensate collector.
- Boiler equipped with closed air box.
- Boiler fully pre-wired with built-on control box.
- Installation option for boiler controllers.
- Suitable for OpenTherm controllers.
- Supplied with internal heating curve.
- Well laid-out instrument panel with LCD display.
- Menu-controlled microprocessor boiler control with operating
and servicing diagnostics.
114494-03

15. Efficiency data and gas inspection labels

GAS 210 ECO PRO

Available in 4 types:
210 -80:
87 kW nominal output at 80/60°C
210-120:
120 kW nominal output at 80/60°C
210-160:
166 kW nominal output at 80/60°C
210-200:
200 kW nominal output at 80/60°C

15.5 Accessories
- Modulating rematic® weather compensators.
- OpenTherm weather compensators (iSense), also for cascade
configurations (Celcia MC4).
- Air supply filter (only for use with “open flue”).
- Concentric wall and roof feed-through connections.
- Second return connection (for CT circuit).
- Thermostat pocket
- Cleaning tools.
- Service case.
- Recom communication set with CD-ROM, interface and wiring.
- Interfaces for communication with various controllers, see Section 8.4.3.
- 0 - 10 V control PCB (IF-01).
- Expanded control/protection PCB (SCU-S01).
- Outside temperature sensor* (only possible in combination with
SCU-S01 PCB).
- Flue gas temperature switch* (only possible in combination with
SCU-S01 PCB).
- Minimum gas pressure switch* (only possible in combination
with SCU-S01 PCB).
- Water pressure sensor* (only possible in combination with SCUS01 PCB).
- Motorised flue gas discharge valve* for cascade configurations
and to prevent flue gas from flowing back (only possible in combination with SCU-S01 PCB).
- Gas leakage control* (for the 166 and 200 kW boilers), only
possible in combination with SCU-S01 PCB.
* Only one PCB (SCU-S01) board is needed for one or all of these
options.

15.6 Services
The following services can be supplied by Broag:
- Initial commissioning.
- Warranty support.
- Access to list of Broag trained and approved service companies.
Please contact our Technical department for further information on
certified maintenance and inspections.

114494-03

GAS 210 ECO PRO

15. Efficiency data and gas inspection labels

15.7 Type of unit

30 29 28

27
26

13
114492LTAL21H016b
fig. 35

Cross-section

1. Flue gas discharge
2. O2/CO2 measuring point
3. Air box
4. Control panel
5. Burner
6. Heat exchanger
7. Inspection hatch
8. Inspectionhatch for condensate collector
9.Ignition pin
10. Boiler heath exchanger sensor

114494-03

11. Return temperature sensor
12. Condensate collector
13. Condensate trap
14. Air silencing tube
15. Filling and drain cock
16. Water pressure switch (option)
17. Gas multiblock
18. Venturi
19. Fan
20.Mixing tube

21.
22.
23.
24.
25.
26.
27.
28.
29.
30.

Flue gas switch
Flow temperature sensor
On/off
Gas connection
Return connection
Flow connection
Thermostat pocket
Display
Combustion air supply
Facility for built-in weather compensator

15. Efficiency data and gas inspection labels

GAS 210 ECO PRO

15.8 Operating principle
The inlet side of the fan is fitted with a venturi, where air and gas
are mixed according to a fixed ratio. When there is a heat demand,
the fan will pre-vent. The fan draws in the combustion air, which is
mixed with the gas to optimum effect in the venturi. The fan moves
the homogenous gas/air mixture through to the burner. The mixture
is then ignited by the combined ignition and ionisation electrode,
which also monitors the flame. Combustion then takes place. Following combustion, the hot flue gases pass through the cast aluminium heat exchanger. Here, the flue gases release their heat to the
heating water in the heat exchanger. The heat output of the boiler is
controlled on the basis of the settings and the prevailing water temperatures that are measured by the temperature sensors. With flue
gas temperatures below dew point (approx. 55°, the temperature at
which the water vapour in the flue gases starts to condense), the
water vapour in the flue gases will condense in the lower part of the
heat exchanger. The heat released during this condensation process (called latent heat or heat of condensation) is also transferred
to the heating water. The condensed water is discharged through a
trap. The flue gases flow through the condensate collector and are
discharged via the flue gas discharge pipe.
The advanced control system of the boiler, the abc®, guarantees extremely reliable heat supplies. This means that the boiler
responds quickly and efficiently to negative environmental influences (such as hydraulic flow problems, air flow problems, etc.). If
problems of this kind occur, the boiler will not lock out, but initially
modulate down and, depending on the nature of the problem,
switch off temporarily (shutdown or control stop) and try again
after a pre-determined time. Providing the situation is not hazardous, the boiler will always continue to attempt to provide heat. For
a continuous supply of heat, the boiler requires a minimum flow of
30 % of the nominal flow at the relevant design temperatures. The
boiler can be equipped with a second return for CT circuit (available as an accessory). The second return can contribute additional
efficiency if the installation includes different temperature groups.

15.9 Boiler Control
15.9.1 Temperature control
The Remeha Gas 210 ECO PRO is equipped with electronic temperature control based on flow, return and boiler block temperature
sensors. The flow temperature is adjustable between 20 and 90°C
(factory setting 80°C).

15.9.2 Low water level protection
The Remeha Gas 210 ECO PRO is equipped with low water protection based on temperature difference measurements and temperature increase measurements.

114494-03

GAS 210 ECO PRO

15. Efficiency data and gas inspection labels

15.9.3 Maximum protection
The maximum protection switches the unit off if the water temperature is too high (110°C) and interlocks it on the control box. Once
the fault has been remedied, the unit can be reset using the resetkey.

15.9.4 Frost protection
The unit must be installed in a frost-free area to prevent freezing
of the condensate drain pipe. If the temperature of the heating
water drops too much, the built-in unit protection activates.

114494-03

16. Application data

GAS 210 ECO PRO

16. Application data
16.1 General
The boiler is suitable for a wide range of applications. The boiler
offers numerous flue gas, hydraulic, gas and control application options, but, at the same time, is not complicated to install.
This and its moderate dimensions, low noise levels and cascade
options mean the boiler can be installed almost anywhere (for
general legal requirements, see Section 13.2).

16.2 Air and flue gas application options
The choice of versions (open or closed combustion air supply)
provides excellent siting flexibility for the boiler. A motorised flue
gas discharge valve is available as an accessory and is used for
overpressure flue gas cascade arrangements.
The boiler is equipped with an enclosed housing that also serves
as an air box. An air filter and connection set are available for situations in which the boiler has to be commissioned during the construction phase or has to operate in a heavily polluted environment
(this only applies to room ventilated versions).
Direct connection to structural ducts is not acceptable because
of condensation, see Chapter 7 for instructions and flue gas discharge tables.

16.3 Hydraulic application options
The advanced boiler control (abc®) and relatively low hydraulic
resistance ensures that the boiler can be used in virtually any
hydraulic system.

16.4 Cascade application
The boiler is also suited for configuration in a cascade. For overpressure flue gas cascade arrangements, use our motorised flue
gas discharge valve (available as an accessory). This prevents
flue gas from flowing back to boilers that are not in operation. As a
result of the narrow width and depth of the boiler, a heat output of
400 kW (2 x Gas 210- 200) can be provided in a floor area of just
under 1.2 m2. A floor area of less than 3 m2 is sufficient to include
room for service and maintenance. If necessary, consult our Technical department.

114494-03

GAS 210 ECO PRO

fig. 36

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

16. Application data

Example of a hydraulic diagram cascade configuration

modulating cascade controller
pump
safety valve
outside temperature sensor
non return valve
expansion vessel
manual seal

114494-03

8. automatic air vent
9. pressure-free distributor (not supplied by Remeha, see table 19 for dimensions)
10. drain cock
11. system pump
12. expansion vessel system
13. flow temperature sensor

16. Application data

GAS 210 ECO PRO

fig. 37

The following table shows the minimum dimensions for the various
pipes and for the low loss header based on a dT design of 20°.
The boiler has a no built-in pump.

Illustration of low loss header

B = boiler side
I = installation side
Output
kW
80
120
160
200
240
280
320
360
400
440
480
520
560
600
640

table 19

Rate of
flow Q
m3/h
3.4
5.2
6.9
8.6
10.3
12.0
13.8
15.5
17.2
18.9
20.6
22.4
24.1
25.8
27.5

d int.
inch
1¼
2
2
2½
2½
2½
2½
2½
2½
3
3
3
3
3
3

D Ø or D square
inch
3 (DN 80)
4 (DN 100)
4 (DN 100)
5 (DN 125)
5 (DN 125)
6 (DN 150)
6 (DN 150)
6 (DN 150)
8 (DN 200)
8 (DN 200)
8 (DN 200)
8 (DN 200)
8 (DN 200)
8 (DN 200)
10 (DN 250)

mm
70
90
100
110
120
130
140
150
160
170
170
180
190
190
200

mm
280
350
350
440
440
440
440
440
440
540
540
540
540
540
540

mm
370
465
465
580
580
580
580
580
580
720
720
720
720
720
720

mm
510
630
630
770
770
770
770
770
770
900
900
900
900
900
900

Low loss header dimensions

114494-03

GAS 210 ECO PRO

16. Application data

16.5 Control options
The following types of control can be used for the boiler:
- as a single boiler or in a cascade with modulating controllers
based on room and/or outside temperature
- on/off controllers, using the boiler's internal heating curve if
necessary (in combination with outside temperature sensor)
- high/low controllers
- analogue signals (0-10 V) for control based on output or flow
temperature.
For further details, see Section 8.4.3

16.6 Gas application options
The boiler is suitable for use with natural gas category II2H3P. For
further data, see Chapter 6.

114494-03

17. Checklists (records)

GAS 210 ECO PRO

17. Checklists (records)
17.1 Checklist for commissioning (Commissioning record)
Commissioning work, see Section 9.2
1. Fill the central heating system with water. Check the water pressure in the
central heating system.
2. Fill trap with water.
3. Vent central heating system
4. Check circulation pump operation
5. Check water-side connections for tightness
6. Check type of gas offered
(Does the type of gas offered correspond to the type of gas
for which the boiler is suited?)
7. Check the gas supply pressure
8. Check gas meter capacity
9. Check the gas tightness of the connections and the gas pipes
10. Vent gas supply pipe
11. Check electrical connections
12. Air supply and flue gas discharge connections checked
13. Check function and operational status of the boiler
14. Check whether the gas/air ratio control is correct
15. Measuring equipment removed and cap refitted on flue gas measuring point
16. Refit boiler front housing again in the proper manner
17. Write type of gas on the boiler type plate
18. Set room thermostat or boiler control to desired value
19. Instruct user and hand over the necessary documents
20. Confirmation of commissioning

Measured value or confirmation
O
O
O
O
O
O Natural gas G20/G25/propane
Wobbe index …….kWh/m3
O
O
O
O
O
O
O
O
O
O
O
O
O

Date:
(Company name, signature of engineer)

table 20

Commissioning record

17.2 Checklist for annual inspection (inspection record)
Inspection work, see Chapter 10.

Confirmation and date

1. Water pressure checked
2. Air supply and
flue gas discharge connections
checked
3. Ignition electrode checked
4. Combustion checked
5. Heat exchanger (central heating)
checked
6. Check the venturi for corrosion
7. Confirmation of inspection

(signature of engineer)

table 21 Inspection record

114494-03

GAS 210 ECO PRO

17. Checklists (records)

17.3 Checklist for maintenance (maintenance record)
Maintenance work
(see Section 10)

Confirmation and date

1. Ignition electrode checked
2. Heat exchanger (central heating) cleaned
3. Combustion checked
4. Water pressure checked
5. Air supply and
flue gas discharge connections checked
6. Check the venturi for corrosion
7. Burner checked
8. Confirmation of maintenance

(signature of engineer)

table 22

114494-03

Maintenance record

Remeha Commercial
Innovation House
3 Oaklands Business Centre
Oaklands Park
Wokingham
RG41 2FD
Tel: +44 118 9783434
Fax: +44 118 9786977
Internet: www.remeha.co.uk
E-mail: boilers@remeha.co.uk

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

04112014

114494

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