P SETC Nortec Owners Manual

User Manual: SETC

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SE Series

Steam Exchange Humidifier

Installation,

Operation & Maintenance

Guide

2008-05-07

1720292-B

IMPORTANT: Read and save this guide for future reference. This

guide to be left with equipment owner.

WARNING:

Improper installation, adjustment, alteration, service or maintenance

can cause injury or property damage. For assistance or additional

information consult a qualified installer or a service agency.

Table Of Contents

GENERAL 1

- RECEIVING & UNPACKING EQUIPMENT................................1

- DELIVERY ................................................1

- GENERAL SPECIFICATIONS ......................................1

- MODEL DESIGNATION .........................................1

MODEL CAPACITY & PHYSICAL DATA 2-7

FLOOR STAND 8

CEILING MOUNTING INSTALLATION 9

TYPICAL SE INSTALLATION DIAGRAM 10

SETC OUTDOOR DIMENSIONS 11

ROOF CURB DIMENSIONS 12

SE INDOOR INSTALLATION 13

- LOCATING AND MOUNTING ......................................13

- PRIMARY WIRING ...........................................13

- ELECTRICAL ..............................................14

- LOW VOLTAGE CONTROL WIRING .................................14

- CONTROL INSTALLATION .......................................17

- PLUMBING ...............................................17

- WATER QUALITY ............................................17

- FILL WATER SUPPLY LINE ......................................17

- DRAIN LINE ...............................................18

- STEAM CONDENSATE OUTLET ....................................18

- AUXILIARY DRAIN OUTLET ......................................18

- STEAM LINES AND CONDENSATE LINE ...............................18

- PRESSURIZED STEAM CONNECTIONS ...............................18

- STEAM SUPPLY PIPING ........................................18

ACTUATOR INSTALLATION 19

- WHAT COMES WITH THE ACTUATOR ................................19

- INSTALLATION INSTRUCTIONS ....................................19

- PRE-LOADING INSTRUCTIONS ....................................19

SETC OUTDOOR INSTALLATION 21

- MOUNTING ...............................................21

- PRESSURIZED STEAM SUPPLY ...................................21

- ELECTRICAL INSTALLATION .....................................21

- FILL WATER SUPPLY LINE ......................................23

- DRAIN LINE ...............................................23

- AUX DRAIN ...............................................23

- STEAM LINES..............................................23

OPERATION 23

- WATER MANAGEMENT ........................................23

INSPECTION AND START-UP PROCEDURE 24

- START UP PROCEDURE .......................................24

- FILLING THE SYSTEM .........................................24

- STARTING THE HUMIDIFIER .....................................24

- TAKING OUT OF OPERATION .....................................25

- SE INSPECTION CHECK LIST ...................................26-27

SCALE MANAGEMENT 28

- WATER QUALITY ............................................28

MAINTENANCE 29

- DRAINING THE TANK .........................................29

- CLEANING THE STAINLESS STEEL TANK & FLOAT CHAMBER ..................29

- ADJUSTMENTS/REPLACEMENTS OF COMPONENTS........................30

- SERVICING THE UNIT .........................................30

- TRANSFORMER REPLACEMENT ...................................31

- FILL VALVE REPLACEMENT......................................31

- DRAIN PUMP REPLACEMENT .....................................31

- FILL BOX REPLACEMENT .......................................32

- REMOVAL OF HEAT EXCHANGER ..................................32

- FAULT CONDITIONS ..........................................32

- SETC SETTINGS ..........................................33-34

- SETC LOGIC CONTROL BOARD ...................................35

- KEYPAD DISPLAY MENU STRUCTURE ..............................36-41

- NORTEC TC CONTROLLER ......................................42

- FAULT AND WARNING LIST ......................................52

- MANDATORY MAINTENANCE SCHEDULE ..............................53

- SETC INTERNAL WIRING DIAGRAM .................................54

- SEP INTERNAL WIRING DIAGRAM ..................................55

- SE SERIES SPARE PARTS ....................................56-63

GENERAL

This installation guide has been designed to

provide assistance when installing, mounting, and

sizing a SE Series humidifier. Actual on site

application may vary. Consult Walter Meier (Nortec)

Technical Services or your local Walter Meier (Nortec)

representative.

RECEIVING & UNPACKING EQUIPMENT

1. Check packing slip to ensure ALL material has

been delivered.

2. All material shortages are to be reported to

Walter Meier (Nortec) within 48 hours from

receipt of goods. Walter Meier (Nortec)

assumes no responsibility for any material

shortages beyond this period.

3. Inspect shipping boxes for damage and note

on shipping waybill accordingly.

4. After unpacking, inspect equipment for

damage and if damage is found, notify the

shipper promptly.

5. All Walter Meier (Nortec) products are shipped

on an F.O.B. factory basis. Any and all

damage, breakage or loss claims are to be

made directly to the shipping company.

DELIVERY

The standard delivery includes:

1. Steam Exchange humidifier equipped with

desired options.

2. In a bag you will find:

- Manuals.

- Plastic adapter for potable, RO, DI or

softened water connection.

- Steam hose for steam outlet with clamps.

3. The SE Series comes complete with a

telescopic stand mounted inside the unit legs.

Stand cross bracing is shipped with the unit.

(Optional on SE 50).

4. Steam valve, actuator, and wye strainer.

5. Desired accessories ordered.

GENERAL SPECIFICATIONS

The NORTEC SE Series humidifier is a completely

new design based on leading edge technology. The

SE is designed to provide clean atmospheric steam at

an economical price.

-1-

MODEL DESIGNATION

The unit specification label indicates the model of

Steam Exchange humidifier according to the following

chart:

SE 100

PRODUCT LINE

(Steam Exchange Humidifier)

Humidifier size

TC = Total Controller

c/w KEYPAD

P = Economical

100

175

250

375

475

675

950

1050

Outdoor

-2-

MODEL CAPACITY & PHYSICAL DATA

SETC/SEP

Operating Steam Pressure

5 psi (34kpa) 7 psi (48kpa) 10 psi (69 kpa) 13 psi (90 kpa) 15 psi (103 kpa)

Lbs/hr (kg/hr)

SE 50 17 (8) 20 (9) 28 (13) 40 (18) 50 (23)

SE 100 33 (15) 41 (19) 58 (26) 80 (36) 100 (45)

SE 175 45 (20) 59 (27) 88 (40) 131 (59) 175 (79)

SE 250 77 (35) 98 (44) 140 (64) 200 (91) 250 (113)

SE 375 105 (48) 136 (62) 200 (91) 294 (133) 375 (170)

SE 475 161 (73) 201 (91) 279 (127) 388 (176) 475 (215)

SE 675 200 (91) 256 (116) 368 (167) 531 (241) 675 (306)

SE 950 386 (175) 463 (210) 609 (276) 800 (363) 950 (431)

SE 1050 446 (202) 529 (240) 682 (309) 880 (399) 1050 (476)

NOTE: Specification subject to change without notice. Rated capacity applies with no blowdown.

Table #1

AUXILIARY DRAIN/

CONDENSATE RETURN

TO UNIT 1/2 NPT FEMALE

BOILER STEAM IN

1/2 NPT MALE

STEAM OUTLET

1 3/4" O.D TUBE

SUPPLY WATER

3/4 BSPP MALE OR

1/2 NPT MALE

POWER AND CONTROL

BOTTOM PORT

FASTENING POINTS

FOR CEILING MOUNT

7/8 TUBE, DRAIN

3/4 NPT MALE

CONDENSATE OUT

FRONT

RIGHT

4 9/16"

11.6 cm

8 1/4"

21.0 cm

10 5/16"

26.2 cm

1 1/16"

2.8 cm

2 9/16"

6.5 cm

8 3/4"

22.3 cm

7/8"

2.3 cm

1 3/8"

3.5 cm

14 1/2"

36.9 cm

12 13/16"

32.6 cm

1 1/2"

3.8 cm

2 1/4"

5.8 cm

1 7/16"

3.7 cm

25 5/8"

65.1 cm

20 5/8"

52.4 cm

18 3/8"

46.7 cm

2.6 cm

20.3 cm

16 3/4"

42.6 cm

19 9/16"

49.7 cm

1 13/16"

46.3mm

2 11/16"

6.9 cm

1 9/16"

4.0 cm

Physical Data

SETC / SEP 50

3/27/06

TOP 0” 0 cm

LEFT 0” 0 cm

RIGHT 30" 76 cm

REAR 0” 0 cm

FRONT 30" 76 cm

BOTTOM 0” 0 cm

SERVICE CLEARANCE TECHNICAL DATA

Max. Rated Steam 56 lb/hr 25.4 kg/hr

Nominal @ 5 psi 3-17 lb/hr 1.4-7.7 kg/hr

Nominal @ 10 psi 6-28 lb/hr 2.7- 12.7 kg/hr

Nominal @ 15 psi 10-50 lb/hr 4.5-22.6 kg/hr

Steam Valve CV

Supply Water Con.

Drain Water Connection

Aux. Drain Con.

Pressure Steam In

Steam Cond. Out

Atm. Steam Out

Weight Empty 125 lb 57 kg

Weight Full 180 lb 82 kg

SE 50

2.2

1 x 1.75 OD (4.5 cm)

¾” NPT male

½”NPTor¾”BSPPmale

0.825” (2.1 cm) tube

½” NPT female

½” NPT male

-3-

Physical Data

SETC 100 - 175

5/4/07

Technical data

Max.Rated Steam 105 lb/hr 48 kg/hr 180 lb/hr 82 kg/hr

Nominal @ 5psi 5-33 lb/hr 2-15 kg/hr 7-45 lb/hr 3-20 kg/hr

Nominal @10psi 9-58 lb/hr 4-26 kg/hr 13-88 lb/hr 6-40 kg/hr

Nominal @15psi 15-100 lb/hr 7-45 kg/hr 26-175 lb/hr 12-79 kg/hr

Steam Valve CV

Supply water con.

Drain water con.

Aux. drain con.

Pressure steam in.

Steam Cond. Out.

Atm. Steam Out. 1 x 1.75” OD 1 x 4.4 cm OD 1 x 3.00” OD 1 x 7.62cm OD

Weight Empty 267 lb 121 kg 267 lb 121kg

Weight Full 423 lb 192 kg 423 lb 192 kg

2.8

0.5” NPT

0.5” NPT female

7.5

0.5” NPT

.75" NPT

0.5” NPT

0.75” O.D. tube

0.5” NPT female

0.5” NPT

.75" NPT

0.75” O.D. tube

SE 100 SE 175

TOP 36” 91 cm

LEFT 0” 0 cm

RIGHT 30" 76 cm

REAR 0” 0 cm

FRONT 30" 76 cm

BOTTOM 0” 0 cm

SERVICE CLEARANCE

PRESSURE

STEAM INLET

WATER INLET

DRAIN

STEAM

CONDENSATE OUTLET

AUX. DRAIN

TOP

FRONT

RIGHT SIDE

POWER SUPPLY

STEAM OUTLET

CONTROL SIGNAL

CONTROL PANEL

20.8"

( 53cm )

13.9"

( 35.2cm )

5.5"

( 13.9cm )

44.5"

( 113.2cm )

31.6"

( 80.3cm )

9.7"

( 24.6cm )

16.1"

( 40.8cm )

7.4"

( 18.92cm ) 10.3"

( 26.2cm )

1.0"

( 2.5cm )

2.5"

( 6.4cm )

6.8"

( 17.18cm )

1.9"

( 4.83cm )

3.7"

( 9.47cm )

2.0"

( 5.1cm )

1.0"

( 2.5cm )

4.1"

( 10.3cm )

4.0"

( 10.2cm )

21.0"

( 53.3cm )

40.2"

( 102.2cm )

3.5"

( 9cm )

1.5"

( 3.9cm )

-4-

Physical Data

SETC 250 - 375

5/4/07

Technical data

Max.Rated Steam 255 lb/hr 115 kg/hr 380 lb/hr 172 kg/hr

Nominal @ 5psi 11-77 lb/hr 5-35 kg/hr 15-105 lb/hr 7-47 kg/hr

Nominal @10psi 21-140 lb/hr 10-64 kg/hr 30-200 lb/hr 14-91 kg/hr

Nominal @15psi 37-250 lb/hr 17-114 kg/hr 56-375 lb/hr 25-170 kg/hr

Steam Valve

Supply water con.

Drain water con.

Aux. drain con.

Pressure steam in.

Steam Cond. Out.

Atm. Steam Out. 1 x 3” OD 1 x 7.62 cm OD 1 x 4” OD 1 x 10.2cm OD

Weight Empty 355 lb 161 kg 355 lb 161 kg

Weight Full 599 lb 272 kg 599 lb 272 kg

SE 250 SE 375

0.5” NPT 0.5” NPT

12 28

0.75” O.D. tube 0.75” O.D. tube

0.5” NPT female 0.5” NPT female

1.0” NPT 1” NPT

.75” NPT .75” NPT

TOP 36” 91 cm

LEFT 0” 0 cm

RIGHT 30" 76 cm

REAR 0” 0 cm

FRONT 30" 76 cm

BOTTOM 0” 0 cm

SERVICE CLEARANCE

PRESSURE

STEAM INLET

STEAM

CONDENSATE OUTLET

9.7"

( 24.6cm )

22.4"

( 56.8cm )

1.9"

( 4.8cm )

1.0"

( 2.6cm )

2.5"

( 6.4cm )

3.7"

( 9.5cm )

7.4"

( 18.9cm )

2.0"

( 5.1cm )

1.0"

( 2.5cm )

4.1"

( 10.3cm )

6.8"

( 17.2cm )

CONTROL PANEL

POWER SUPPLY

44.6"

( 113.3cm )

31.6"

( 80.3cm )

4.0"

( 10.2cm )

21.0"

( 53.3cm )

40.2"

( 102.2cm )

27.2"

( 69cm )

13.9"

( 35.2cm )

5.5"

( 13.9cm )

3.5"

( 9cm )

1.5"

( 3.9cm )

STEAM OUTLET

CONTROL SIGNAL

WATER INLET

DRAIN

AUX. DRAIN

TOP

FRONT

RIGHT SIDE

10.3"

( 26.2cm )

-5-

Physical Data

SETC 475 - 675

5/4/07

Technical data

Max.Rated Steam 480 lb/hr 217 kg/hr 680 lb/hr 308 kg/hr

Nominal @ 5psi 24-161 lb/hr 11-73 kg/hr 30-200 lb/hr 14-91 kg/hr

Nominal @10psi 42-279 lb/hr 19-127kg/hr 55-368 lb/hr 25-167 kg/hr

Nominal @15psi 71-475 lb/hr 32-215 kg/hr 101-675 lb/hr 46-306 kg/hr

Steam Valve CV

Supply water con.

Drain water con.

Aux. drain con.

Pressure steam in.

Steam Cond. Out.

Atm. Steam Out. 1 x 4” OD 1 x 10.16cm OD 1 x 4” OD 1 x 10.16cm OD

Weight Empty 529 lb 240 kg 529 lb 240 kg

Weight Full 992 lb 450 kg 992 lb 450 kg

SE 475 SE 675

0.5” NPT 0.5” NPT

20 28

0.75” O.D. tube 0.75” O.D. tube

0.5” NPT female 0.5” NPT female

1.25 ” NPT 1.5” NPT

1.0” NPT 1.0” NPT

TOP 36” 91 cm

LEFT 30" 76 cm

RIGHT 30" 76 cm

REAR 0” 0 cm

FRONT 30" 76 cm

BOTTOM 0” 0 cm

SERVICE CLEARANCE

3.7"

( 9.5cm ) 7.4"

( 18.9cm ) 10.3"

( 26.2cm )

1.9"

( 4.8cm )

1.0"

( 2.5cm )

2.5"

( 6.4cm )

6.8"

( 17.2cm )

4.1"

( 10.3cm )

2.0"

( 5.1cm )

1.0"

( 2.5cm )

9.7"

( 24.6cm )

21.9"

( 55.5cm )

38.0"

( 96.4cm )

31.6"

( 80.3cm )

4.0"

( 10.2cm )

21.0"

( 53.3cm )

40.2"

( 102.2cm )

13.7"

( 34.9cm )

5.5"

( 13.9cm )

3.5"

( 9cm )

1.5"

( 3.9cm )

42.7"

( 108.6cm )

CONTROL SIGNAL

CONTROL PANEL

POWER SUPPLY

PRESSURE

STEAM INLET

WATER INLET

DRAIN

STEAM

CONDENSATE OUTLET

AUX. DRAIN

STEAM OUTLET

TOP

FRONT

RIGHT SIDE

-6-

Technical data

Max.Rated Steam 960 lb/hr 435 kg/hr 1070 lb/hr 485 kg/hr

Nominal @ 5psi 58-386 lb/hr 26-175 kg/hr 67-446 lb/hr 30-202 kg/hr

Nominal @10psi 91-609 lb/hr 41-276 kg/hr 102-682 lb/hr 46-309 kg/hr

Nominal @15psi 142-950 lb/hr 64-430 kg/hr 158-1050 lb/hr 72-476 kg/hr

Steam Valve CV

Supply water con.

Drain water con.

Aux. drain con.

Pressure steam in.

Steam Cond. Out.

Atm. Steam Out. 2 x 4” OD 2 x 10.16cm OD 2 x 4” OD 2 x 10.16cm OD

Weight Empty 703 lb 319 kg 703 lb 319 kg

Weight Full 1384 lb 628 kg 1384 lb 628 kg

1.25” NPT 1.25” NPT

0.75” O.D. tube 0.75” O.D. tube

0.5” NPT female 0.5” NPT female

2.0” NPT 2.5” NPT

SE 950 SE 1050

0.5” NPT 0.5” NPT

40 65

TOP 36” 91 cm

LEFT 30" 76 cm

RIGHT 30" 76 cm

REAR 0” 0 cm

FRONT 30" 76 cm

BOTTOM 0” 0 cm

SERVICE CLEARANCE

Physical Data

SETC 950 - 1050

5/4/07

1.0"

( 2.5cm )

2.5"

( 6.4cm )

7.4"

( 18.9cm ) 10.3"

( 26.2cm )

4.1"

( 10.3cm )

6.8"

( 17.2cm )

2.0"

( 5.1cm )

1.0"

( 2.5cm )

9.7"

( 24.6cm ) 29.7"

( 75.3cm ) 53.6"

( 136.1cm )

31.6"

( 80.3cm )

4.0"

( 10.2cm )

21.0"

( 53.3cm )

40.2"

( 102.2cm )

9.9"

( 25cm )

39.5"

( 100.2cm )

8.0"

( 20.3cm )

58.3"

( 148.2cm )

5.5"

( 13.9cm ) 5.3"

( 13.6cm )

3.5"

( 9cm )

STEAM

OUTLETS

CONTROL SIGNAL

PRESSURE STEAM INLET

CONTROL PANEL

POWER SUPPLY

AUX. DRAIN

STEAM CONDENSATE

OUTLET

WATER INLET

DRAIN

1.5"

( 3.9cm )

RIGHT SIDE

FRONT

TOP

-7-

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-9-

SECURE RODS

TO STABLE STRUCTURE

UPPER BRACING BRACKET

RECOMMENDED

SLIDE UNIT ONTO RODS

THROUGH HOLES PROVIDED

IF USING FACTORY HARDWARE, RODS CAN

ONLY EXTEND 1" PAST THE BOTTOM OF THE CABINET

SLIDE FACTORY SUPPLIED

BOTTOM BRACKETS IN PLACE

SECURE BRACKETS TO RODS. PROPER INSTALLATION MEANS MUST BE

USED TO ENSURE THAT THE ASSEMBLY DOES NOT DETACH

IF USING FACTORY DRIP PAN, FASTENING HARDWARE MUST BE CONCEALED

WITHIN THE PROFILE OF THE BOTTOM BRACKETS

ATTACH DRIP PAN. SECURE TO BOTTOM BRACKETS VIA END SCREW ATTACHMENT

1/2 NPT PLUMBING OR EQUIVALENT IS RECOMMENDED

TERMINATE AT DRAIN

DO NOT DRAIN UNIT INTO DRIP PAN. DO NOT ROUTE ANY OTHER FLUID TO DRIP PAN.

DRIP PAN IS NOT A STRUCTURAL MEMBER AND CANNOT BE USED TO SUPPORT OTHER ELEMENTS

NOTES:

1. UNIT WEIGHT WITH WATER = 180 LB. THIS DOES NOT INCLUDE THE ADDITIONAL PLUMBING NEEDED

FOR CONNECTION. TOTAL WEIGHT MUST BE DETERMINED BY OTHERS.

2. STRUCTURAL CONSIDERATIONS ARE THE RESPONSIBILITY OF OTHERS.

3. PROPER MOUNTING MEANS, SUCH AS; THE SECURING OF FASTENERS OR OTHER JOINTS, IS THE

RESPONSIBILITY OF OTHERS.

4. UNIT CANNOT BE USED AS A STRUCTURAL MEMBER. NO OTHER COMPONENTS MAY BE ATTACHED TO

IT.

5. SERVICE ACCESS IS REQUIRED AT THE FRONT AND RIGHT SIDE OF THE UNIT. A MINIMUM OF

30” (76 cm) CLEARANCE IS NEEDED.

6. SIZES AND FEATURE LOCATIONS ARE TO BE DERIVED FROM THE UNIT DIMENSIONAL DRAWINGS OR

BY CONSULTING THE FACTORY.

THREADED ROD

3/8" OR METRIC M10

SE 50

Ceiling Mounting Installation (Optional)

3/27/06

-10-

Typical SE Installation

SAM-e (Short Absoption Manifold)

Can be installed in the Horizontal

duct or vertical Duct or a AHU.

Reference SAM-e Installtion

Manual

Condensate Return

to drain or sump pump

Primary wire and

disconnect (By Others)

Standard

Telescopic

Stand

(Option by

Nortec)

1/2" NPT Supply water

connection. (Manual shut-off

valve by Others)

3/4" O.D. Drain connection

to funnel drain or sump pump

1/2" NPT Aux. Drain, Optional

Plugged at factory

(Shut-off valve by Others)

Funnel with 1" air gap

supplied by others

Controls (By Nortec or by Others)

Steam Valve and Actuator must be located 6" max.

from the SE humidifier.

Inlet located on top of unit for SE models 475 to 1050.

Valve and Actuator must be installed horizontally.

Refer to the Invensys installation manual for details.

12"

1. This drawing is for reference only. Installation

must conform to all local codes.

2. Refer to physical data drawings for dimensions.

6"Min

6" min., P-Trap must be 2" more than

duct static pressure

3/4" NPT Condensate

Return

Copper or S.S.

pipe - 1" Insulation

Recommanded

Stainless Steel

Steam Header

Galvanized Mounting Frame

Optional

Typical SE Installation

Stainless steel

steam tubes

Open floor drain must be properly sized

and rated for maximum temperature requirements.

Duct or AHU

Short-Absorption Manifold (SAM-e)

6" Long hose cuff and 2 gear

clamps for steam line connection.

(by Nortec)

Union

(by Others)

6" Long hose cuff for 1.75" dia. tubing

4" long hose cuff for 3" & 4" dia. tubing

and 2 gear clamps for steam line connection.

(By Nortec)

Steam condensate drain.

Return to nonpressurized system,

by gravity only

Pressurized steam connection from Boiler

Max. 15 psi

Min. 5 psi

Water supply

30 to 80 psig

Drain water cooler and

F & T Steam trap(s)

Located inside unit. Installed

at Nortec

Steam trap (By Nortec or by Others)

Return to nonpressurized system,

by gravity only

Wye strainer (By Nortec)

6"Min

-11-

NEMA RATED

JUNCTION BOX

(By Others)

CLEARANCE

ENVELOPE

30”

(76.2 cm)

10”

(258mm)

*Required for

SETC Outdoor

475-1050

49.7”

(126.2 cm) 12”

(30.5 cm)

40”

(101.6 cm)

54.3”

(138 cm)

RIGHT

Steam

Outlet(s)

TOP

FRONT

RIGHT

BACK

LEFT

*Cleaning Port for

SETC Outdoor 475-1050 Power and

Controls

Vent

Hood

FRONT

Cleaning

Port

in cm lbs kg lbs kg in cm NPT

SETC Outdoor 100 1x1.75 1x4.4

SETC Outdoor 175 1x3 1x7.6

SETC Outdoor 250 1x3 1x7.6

SETC Outdoor 375 1x4 1x10.2

SETC Outdoor 475

SETC Outdoor 675

SETC Outdoor 950

SETC Outdoor 1050 1.25

Model

1x4 1x10.2

Steam Condensate

Outlet

0.75

2.5

2x4 2x10.2

1.5

1.25

1.5

NPT

0.5

0.75

Pressure Steam

Inlet

AShipped

Weight

Operating

Weight

Steam Outlet

(O.D.)

192

272

450

628

423

599

992

1384

121

161

240

319

267

355

529

703

27.9

21.5 54.6

70.8

59.1 150

11143.5

SETC Outdoor Dimensions

1/26/04

-12-

3314 '

(9.5cm) M -

ELECT

SIDE

RICAI...

BlJ

RNER

SlDE---J

~d!

:::::::-

3/4"

(1.00cm)

6.0"

(15.24cm)

ROOF

PIPE CHASE

Model Dimension A

S ETC OJtdoor 100 8.63" (27.91cm)

S ETC OJtdoor 175 8.63" 27.91cm)

S ETC OJtdoor 250 15.06" 38.25cm)

SETC OJtdoor

375

15.06" (38.25cm)

S ETC OJtdoor 475 30.63" (77.Bcm)

S ETC OJtdoor 675 30.63" 77.8cm

S ETC OJtdoor 975 46.25" 117.5cm)

S ETC OJtdoor 1050 46.25" 117.5cm)

Roof Curb

by Others

CURB-~

Roof

Curb

Dimensions

Curb

Hei~ht

Stippino

Weiott

15" (38.1cm) Min.

267

Ibs

(121

k9)

15" (38.1cm) Min.

267

Ibs

(121

kal

15" (38.1cm) Min.

355

Ibs

161

kg)

15" (38.1cm) Min.

355

Ibs

(161

k9)

15" (38.1cm) Min.

529

Ibs (240 k9)

15" (38.1cm) Min.

529

Ibs 240 kg)

15" (38.1cm) Min. 7031bs (319

kal

15" (38.1cm) Min. 7031bs (319 kq)

lIortec'

SErC

Roof Curb

11/09/07

www"humidity.com

SECTION

A-A

Lifting

HooKs

Operati~

Wei~ht

423 Ibs (192 k9)

423 Ibs (192 kal

599 Ibs (272 k9)

992 Ibs (450 k9)

1384

Ibs

628 kq)

1384

Ibs

628 kq)

SE INDOOR INSTALLATION

LOCATING AND MOUNTING

SE Series humidifiers are designed to mount on

an SE Stand (Included with all models) or floor. The

clearance dimensions shown in this manual are for

reference only and are the minimum required for

maintenance of the humidifier. Local and National

Codes should be consulted prior to final location and

installation of the humidifier. NORTEC cannot accept

responsibility for installation code violations.

·Figure #1 shows the locations of all required

connections to the Steam Exchange Humidifier.

Careful consideration should be given to all of

these connections when choosing a location for

the humidifier.

·For front and side clearance requirements (for

access during installation, maintenance and

troubleshooting), refer to pages3-6.

·DO NOT locate humidifier any further than

absolutely necessary from steam distributor

location. Net output will be reduced as a result of

heat loss through steam line. Also, increased

static pressure (over 12" W.C.) will result in hot

water going down the drain. Consult factory if this

situation occurs.

·Where possible, mount humidifier at a height

convenient for servicing.

·Ensure the humidifier is mounted level.

·Ambient temperature location for humidifier:

41ºF - 104ºF (5ºC - 40ºC).

·Relative humidity location for humidifiers:

5% rh - 80% rh.

·DO NOT mount humidifier on hot surfaces.

·DO NOT mount humidifiers in an area where

freezing may occur.

·If humidifiers are mounted on roof, a properly

ventilated, temperature controlled, (above

freezing), weatherproof model should be used.

Consult your local representative for more

information on NORTEC’s SETC Outdoor model.

·DO NOT mount humidifiers on vibrating surface.

Consult factory.

·The humidifier shall not be installed directly on

carpeting, tile or other combustible material other

than wood flooring.

·Some insulating materials may be combustible.

Prior to installing this appliance examine the area

for insulating material. If this appliance is

installed in an insulated space, it must be kept

free and clear of insulating materials. If insulation

is added after the appliance is installed, it will be

necessary to examine the area again.

PRIMARY WIRING

All work concerning the electrical installation

must be performed by qualified personnel.

-13-

Figure #1

Primary Wiring to Humidifier

ELECTRICAL

WARNING: The electrical parts inside the

humidifier are very sensitive to electrostatic discharge.

Appropriate measures against electrostatic discharge

(ESD protection) must be taken when carrying out

installation work.

·The humidifier should only be connected to

primary power (main power) after all installation

work has been completed.

·An external disconnect switch(by others) must be

installed close to the unit to allow for power

interruption during servicing and/or maintenance.

·Humidifiers require field wiring to primary voltage

terminal blocks. Power requirement must be

110-120/1/60Vac, 15A or 20 A for SETC Outdoor

950 &1050 separately fused circuit, single phase.

Wiring can be fed through a 7/8" hole on the

bottom or the top of the control compartment.

·When installed, the appliance must be electrically

grounded in accordance with local codes or, in

the absence of local codes, with the National

Electrical Code, ANSI/NFPA 70, and/or the CSA

C22.1 Electrical Code, if an external electrical

source is utilized.

·External wiring sizes must be in accordance with

NEC and/or CEC and existing local electrical

codes and by-laws.

LOW VOLTAGE CONTROL WIRING

(See Page 14 for details)

All SE models require at least one type of input

control signal for unit operation. Refer to the sections

below that detail the types of controls that can be used

with each model.

Low voltage control terminal strips are provided in

the electrical compartment. Refer to the specific

control wiring diagram supplied with each unit.

Field wiring from humidistat to humidifier and

between devices should be shielded 18 AWG or

heavier and kept as short as possible.

Controls are available from NORTEC as

accessories and can be ordered with the humidifier.

Controls by others may also be used as long as they

meet the criteria noted below. The following is a

summary of the common types of controls that may be

used with NORTEC SE Humidifiers.

A – Wall or Duct Mounted Control On/Off

Humidistat: Wired to make on drop in humidity, break

on rise to set point. Set to desired RH. Can be a

make/break set of contacts from a Building

Management System.

B – Duct Mounted Safety High Limit On/Off

Humidistat: Wired to make on drop in humidity, break

on rise to safety set point. Set to approximately 85%

RH as a safety to prevent saturation and wetting in the

duct. Highly recommended for ducted applications.

C – Duct Mounted Safety Air Proving On/Off

Switch: Wired to make when sensing air flow, break

when no air flow. Used as a safety to prevent

saturation when there is no air flow. Highly

recommended for ducted applications.

D – Wall or Duct Mounted Modulating Humidistat:

Provides a modulating signal to the unit that

represents the output (up to 100%) required from the

humidifier. Signal type can be changed in the field via

dip switch settings on the logic control board. Refer to

SETC Setting section.

The SETC can accept a single or dual control

signal. The SEP can only accept a single control

signal:

SETC SEP

0-20 mA

4-20 mA 4-20 mA

0-10 VDC 0-10 VDC

2-10 VDC

0-5 VDC

1-5 VDC

ON/OFF ON/OFF

The unit must be ordered from the factory for the

desired signal type and number of channels. If no

signal type was specified, ON/OFF control signal will

be set as default. When configured for 2-channel

modulation the humidifier will generate steam only if

both channels indicate a demand (see D). If both

channels are demanding steam the humidifier will

satisfy the lower demand signal.

-14-

SETC SERIES

EXTERNAL CONTROLS WIRING CONNECTIONS

LOW VOLTAGE TERMINAL STRIP

WARNING: Failure to wire the controller in accordance with the wiring diagram that was supplied

with the unit could permanently damage the SETC board. Such errors will void the unit warranty.

NOTE: This is a wiring diagram only. For specific wiring instructions, it is necessary to refer

to the wiring diagram which is supplied with each unit.

generic

Low Voltage Terminal Strip

1 & 2: Wire all on/off controls and safeties between these two terminals. If not used, jumper1&2forthe

unit to operate.

4: Modulating input to humidifier “A”.

5: Modulating input to humidifier “B”.

6: 10 Vdc output (20 mA max.) Can be used to simulate demand to unit..

8: When 24 Vac input received, the unit will initialize a full tank blowdown.

9: Safety interrupt (24 Vac).

10 & 11: Remote indication connection for humidifier “on” status indication.

12 & 13: Remote indication connection for humidifier “active” status.

14 & 15: Remote indication connection for service required indication.

16,17 & 18: Remote indication connection for fault indication.

19, 20 & 21: Modulating output and 24VAC power to actuator

1234

910

1211

EXTERNAL

INTERNAL

EXTERNAL

INTERNAL

Security Loop

Modulation Input Signal “A"

Modulation Input Signal “B”

10 Vdc output (20 mA max.)

Full Tank Blow Down (FTBD)

enable (24 Vac)

Safety Interrupt (24 Vac)

NOTE: If no On/Off Control is used then a field jumper

must be connected across terminals 1 and 2 in order

for the humidifier to operate.

14 1815

COM

N.O.

N.C.

N.O.

Humidifier “ON”

Humidifier “ACTIVE”

Humidifier “SERVICE”

Humidifier “FAULT”

19 20 21

24V (Hot)

Common

Signal

Actuator

SETC SERIES

External Controls Wiring Connections

09/16/2004

-15-

-16-

SEP SERIES

External Controls Wiring Connections

09/16/2004

SEP SERIES

EXTERNAL CONTROLS WIRING CONNECTIONS

LOW VOLTAGE TERMINAL STRIP

WARNING: Failure to wire the controller in accordance with the wiring diagram that was supplied

with the unit could permanently damage the SEP board. Such errors will void the unit warranty.

NOTE: This is a wiring diagram only. For specific wiring instructions, it is necessary to refer

to the wiring diagram which is supplied with each unit.

generic

Low Voltage Terminal Strip

1 & 2: Wire all on/off controls and safeties between these two terminals. If not used, jumper1&2forthe

unit to operate.

4: Modulating input to humidifier

5,6&7: Modulating output and 24VAC power to actuator

8, 9 & 10: Remote indication connection for fault indication.

1234

910

1211

EXTERNAL

INTERNAL

EXTERNAL

INTERNAL

Security Loop

Modulation Input Signal

NOTE: If no On/Off Control is used then a field jumper

must be connected across terminals 1 and 2 in order

for the humidifier to operate.

COM

N.C.

N.O.

Humidifier “FAULT”

24V (Hot)

Common

Signal

Actuator

CONTROL INSTALLATION

·Mount any wall humidistat (control or high limit)

over standard electrical box at height similar to

typical thermostat. Any wall humidistat should be

in location representative of overall space being

humidified and not in path of blower pack or air

supply grille. Do not mount on an outside wall

where temperature fluctuations can affect control

response. (Windows, sky lights, sinks, coffee

machines, etc.)

·Mount duct humidistat in location representative

of overall air humidity, usually in return duct. Do

not mount it directly in front of steam distributor or

in turbulent or mixing zone. Mount humidistat

where air’s humidity and temperature are uniform

and representative of spaces being humidified.

·Mount duct high limit humidistat downstream of

steam distributors far enough that, under normal

humidity and air flow conditions, steam will have

been fully absorbed (typically at least 10 feet). It

must be located to sense high humidity only

when uniform and representative air is

over-humidified or approaching saturation.

·Mount duct air-proving switch so that it is able to

sense air flow or lack thereof it. Wire it to make

when air flow is sensed and break when air flow

fails.

·Check operation of all on/off controls before

starting humidifier.

·Calibration of controls (on/off or modulation) in

the field may be necessary due to shipping and

handling. Verify humidistat accuracy before

commissioning system.

PLUMBING

NOTE: All water supply and drain line

connections should be installed in accordance with

local plumbing codes.

WATER QUALITY

·The humidifier is intended to operate on cold

water.

·DO NOT use a hot water source to supply the

humidifier. Minerals will adhere more easily to

surfaces and the fill valve’s small flow regulating

orifice could become plugged.

·Consider using a water softener. Longer

operating times between tank cleaning will be

achieved with softened water.

·Reverse osmosis (RO) water can provide very

long periods before cleaning is required since it is

cleaner than softened water. Deionized (DI)

water may be used with all models with the

stainless steel water supply option. Consult your

NORTEC representative for a quote on a water

treatment system.

FILL WATER SUPPLY LINE

·Each unit is supplied with an adapter for the fill

valve (½”NPT ). The SE 50-675 has a fill rate of

10l/min (2.6 gpm) and the SE 950-1050 of

17l/min (4.5gpm). Size of piping is a minimum ½”

copper, recommend ¾” up to within 4 feet of unit.

·Standard fill valves are sized for water pressure

ranging from 30 to 80 psig (ideally 55 to 60 psig).

For other pressures, consult factory. This

pressure should be measured at the humidifier if

the water pressure is suspect.

·It is recommended to have a faucet installed

close to the humidifier to allow quick filling of the

system on initial start up. This can also be very

useful for mandatory cleaning of the unit.

·ALWAYS supply and install a shut-off valve and

union in the water supply line dedicated to the

humidifier to facilitate servicing.

-17-

Figure #2

Installation

DRAIN LINE

·The humidifier is equipped with a ¾”O.D. drain

outlet connection on the side of the humidifier. A

vacuum break valve is installed internal to the

unit on the drain line. The drain water line must

be piped to a drain funnel to provide an air gap

before connection to the building drainage

system.

·The drain line should not end in a sink used

frequently by personnel, or where plumbing

codes prohibit it. Route to a floor drain or

equivalent for safety reasons. Internal drain water

tempering will ensure a maximum of 140ºF

(60ºC) exiting water temperature.

·Keep drain lines as short as possible. Keep drain

lines sloped down, not level and not up since low

spots in drain lines will accumulate sediment and

cause backup. The drain line should be 1-1.5"

O.D. or larger. Consult local codes.

·When the drain pump is activated, the tank drains

at a rate of 7-8 gal/min (18-20 l/min).

STEAM CONDENSATE OUTLET

MODEL OUTLET

SE 50, 100, 175, 250 and 375 ¾” NPT

SE 475, and 675 1” NPT

SE 950, and 1050 1 ¼” NPT

·The SE humidifier has a condensate return line

connection for removal of the condensate

formed in the heat exchange.

·Condensate line after the steam trap(s) must be

atmospheric and lower than the traps at all times.

If required, a condensate pump (by others) can

be used to return condensate to the humidifier.

AUXILIARY DRAIN OUTLET

·An auxiliary drain port is also provided on the

side of the humidifier. It can be used to manually

drain the unit, if required. The unit is shipped

with this connection plugged. It is recommended

to install a shut off valve on this line.

·The auxiliary drain port is used when the freeze

protection option is required. Install a shut off

valve on this line and pipe to the drain funnel.

The manual shut off valve must always be in the

open position when the unit is operating but can

be closed for servicing of the unit.

STEAM LINES AND CONDENSATE LINES

For steam line installation between the humidifier

and distribution system, consult the distribution system

installation manual. Steam Distributor Installation

Manual - Form #XX-231 and SAM-e, Short Absorption

Manifold - Form #XX-249.

The SE series of Steam Exchange humidifiers can

develop steam pressures up to 12” w.c. to overcome

duct and steam line pressures. An enclosed trap on

the drain line prevents steam from going to drain.

Duct pressures above 12” will cause steam to exit

through the drain line. Consult factory.

PRESSURIZED STEAM CONNECTIONS

Proper design and sizing of steam supply lines

should be preformed by a qualified firm.

STEAM SUPPLY PIPING

The steam valve, actuator, wye strainer, and

shut-off valve should be installed by a qualified

technician.

Steam supply to the unit must be taken from the

top of the supply main. Do not take from the sides or

the bottom. The steam shut-off valve (supplied by

others) should be installed on the supply line at the

unit, followed by the wye strainer.

The steam valve and Actuator must be located as

close as possible to the humidifier. Further than 6”

(15cm) away may result in lower output.

-18-

ACTUATOR INSTALLATION

WHAT COMES WITH THE ACTUATOR

1. Jam Nut

2. Lock Washer

3. Stem Extension

4. Connecting Pin

5. Set Screw

INSTALLATION INSTRUCTIONS

1. Thread jam nut on to the valve stem as far as

it will go. At least ½” of the valve stem should

extend above the nut.

2. Place lock washer over the valve stem so it is

seated on the jam nut.

3. Thread the stem extension on to the valve

stem making contact with the lock washer.

4. Pre-load the actuator

PRE-LOADING INSTRUCTIONS

1. Inserting the hex wrench as illustrated and

cranking 1 ½ turns in the direction shown on

the actuator. Lock it into position with the

locking mechanism using a slotted

screwdriver.

2. Install the actuator on the valve and tighten

the mounting nut and raise the valve stem to

the full up position.

3. Rotate the stem extension until it’s hole lines

up with the hole in the shaft of the actuator.

-19-

Figure #3

Actuator Parts

Figure #4

Installation Instructions

Figure #5

Pre-loading Instructions

Figure #6

Pre-loading Instructions

4. Insert connecting pin to secure stem extension

and tighten jam nut against stem extension

using 5/16” open-end wrench.

5. Affix open/closed label to the indicator in the

appropriate position.

6. Insert set screw (packaged with actuator) into

the most accessible side. Tighten with size 10

IP Torx bit to 20-25 lb-in.

7. Apply power to the actuator and check the

system operation (steam output) in relation to

the control signal.

-20-

Figure #7

Pre-loading Instructions

SETC OUTDOOR

INSTALLATION

SETC Outdoor units come complete with internal

ventilation (cooling) for the electronics, and optional

heaters for freeze protection in cold climates.

All installations must conform with local building

codes. NORTEC can not accept responsibility for

installation code violations.

MOUNTING

·A typical rooftop installation is shown on page 19.

·The SETC Outdoor unit comes standard with

cut-outs in the base to allow for lifting by a forklift.

When lifting by this method, ensure that the forks

extend across the entire base to prevent tipping

or damage to the unit.

·The enclosure also comes complete with four (4)

removable lifting lugs fastened to the base. All

four lugs must be utilized if moving the unit in this

manner. Protect the cabinet from damage from

the lifting cables/chains during lifting. The lifting

lugs should be removed from the base once the

unit has been correctly positioned on the curb

mounting.

·The SETC Outdoor models have a zero”

clearance to combustibles. However, choose the

location for the humidifier to allow for side and

frontal clearances for access during installation,

maintenance and servicing.

·The integral base of the SETC Outdoor model is

designed to mount on a curb. The curb must be

built to structurally support the entire weight of

the humidifier when in operation.

·Ensure that the humidifier is mounted level.

·The pan in the bottom of all outdoor models has a

pipe chase for routing of services into the

humidifier from below.

·It is not necessary to make the hole in the roof

the same size as the curb. The curb drawing

shows the location and size of the pipe chase

required. The pipe chase should be sealed when

the installation is complete to ensure positive or

negative pressure from the building.

·The panels of the outdoor model have louvers to

provide ventilation for the electronics and air for

the combustion process. Locate the unit so that

louvered panels are a minimum of 10 ft (3m)

from any mechanical exhaust outlet.

·When mounted on the curb, the lowest air intake

louvers must be a minimum of 12” (30.5cm)

above any surface where snow or ice could

accumulate. In areas where normal snow

accumulation is higher, mount the unit

accordingly.

·Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of the humidifier.

PRESSURE STEAM SUPPLY

·Steam Lines are to be routed through the pipe

chase located on the floor of the unit.

·The steam valve and actuator must be located as

close as possible to the unit.

·A wye strainer must be installed prior to the

valve.

·Please refer to Actuator Installation Section.

ELECTRICAL INSTALLATION

·Power and control wiring is to be routed into the

humidifier through the pipe chase in the base pan

of the outdoor models located in the heat

exchange area.

·Installation details for primary and low voltage

control wiring are the same as for indoor units.

-21-

Figure #8

Electrical Disconnect Installation

-22-

Typical SETC Outdoor Installation

AHU

Steam Line

Water

Supply

Manual

Shut-off

Drain

Lines

Funnel

With Air Gap

Roof Curb

(by others)

Electrical

Disconnect

(by others)

Pressure Steam

Supply

Steam Line

Electrical

Disconnect

(by others)

Roof Curb

(by others)

·A field supplied NEMA rated disconnect switch

must be mounted external to the SETC Outdoor

unit to allow for power interruption during

servicing and/or maintenance. A mounting plate,

located on the front of each outdoor model above

the electrical access door, is available for

mounting of the disconnect switch. Two electrical

conduits are provided for routing the primary

wiring to the disconnect switch and then back

inside the enclosure to the main power terminal

strip. See Electrical Disconnect Installation

Figure for details.

FILL WATER SUPPLY LINE

·Each unit is supplied with a ½” NPT male

connection to the fill valve. Refer to Installation

Figure for connection details. A minimum fill rate

of 10 l/min (2.6 gpm) is required for the SE

100-675 and 17 l/min (4.5 gpm) for SE 950-1050.

Allowable pressure range is 30-80 psig.

·Always install a manual shut off within the

building to allow isolation of the water to the unit.

A union must be installed on the fill line prior to

the fill valve to allow for servicing.

·Heat trace fill line piping above rooftop from the

pipe chase up to the fill valve.

DRAIN LINE

·SETC Outdoor units have an integrated 12” (30.5

cm) w.c. trap and vacuum break valve on the

drain line.

·Route the drain hose to a drain funnel in the

building to provide an air gap before entering

main building drain/sewage system.

·When the drain pump is activated, the tank drains

at a rate of 18-20 l/min (7-8 gpm).

·Internal drain water tempering will ensure a

maximum of 140°F (60°C) during normal

operation.

AUXILIARY DRAIN

·Standard SETC Outdoor units come with a

capped ¾”NPT auxiliary drain connection at the

bottom of the tank. It is recommended to install a

manual shut-off valve on this connection and

route to drain (provide an air gap).

·SETC Outdoor units equipped with a freeze

protection package have a normally open drain

valve mounted at the auxiliary drain connection and

piping that terminates at the pipe chase in the base

pan. This valve opens and will drain the contents of

the tank in the event of a power failure. Install a

manual shut off valve on this line and pipe to the

drain funnel. This valve must always be left in the

open position when in operation but can be closed

for servicing of the unit.

·Drain pipe should be capable of withstanding

200°F temperatures.

STEAM LINES

·The steam outlet connection is located at the

back of the SETC Outdoor unit. Steam hose(s)

and clamps are supplied with the unit and are

intended to provide a flexible coupling outside of

the unit to the building steam lines.

·SETC OUTDOOR models can develop steam

pressures up to 12” (30.5 cm) w.c. to overcome

duct and steam line pressures. Pressures above

12” (30.5 cm) w.c. will cause steam to exit

through the drain line.

·Steam lines can be routed to an air handler on

the roof or pipe chase (external to the unit)

through the rooftop to enter the building.

·All steam lines must be insulated to reduce

losses.

·For steam line installation guidelines, consult the

distribution system installation manual (Steam

Distributor Installation Manual Form #XX-231 and

SAM-e Short Absorption Manifold Form #XX-249

END OF SETC OUTDOOR

OPERATION

WATER MANAGEMENT

The SE Series is equipped with a unique float

chamber water level monitoring device. Two magnetic

floats measure 5 different water levels on the SETC

models, and 2 different water levels on the SEP

models for proper operation. The float chamber and

board are located away from the boiling action to

increase reading accuracy and reduce mineral

build-up.

The float chamber is connected to the tank under

the water level and above the water level to ensure

equalization of pressure between the tank and float

chamber. In addition, cooling water is introduced in

-23-

the float chamber to reduce scale build-up. The unit

also includes an internal 1” air gap and a vacuum

breaker to prevent siphoning effect.

On initial start-up, the solenoid operated fill valve

fills the tank. The water level reaches the backup float

first and then the main float. If the backup and main

floats do not read the same water level during the

operation of the unit, the unit will shut down on a fault.

The unit will continue to fill to the top yellow position.

The drain pump will then be energized to drain the

water level down to just below the bottom red position

and then the fill valve will energize again to fill the unit

to the middle green position. During this time the

software is performing a test on the fill valve and drain

pump.

If a demand signal is present, the unit will then

begin to open the steam valve. As the unit operates,

the fill valve will be pulsed to maintain the water level

between the yellow and green positions. During steam

production the unit will also check if the floats and

drain pump are operational by activating a drain

sequence every 24 hours. (adjustable to time of day)

INSPECTION AND START UP

PROCEDURE

START-UP CHECKLIST

Before the SE humidifier is operated for the first

time, a complete inspection must be performed to

ensure that the installation and all water, pressure

steam, atmospheric steam lines, and electrical

connections to the humidifier conform to the guidelines

in this manual. Complete the checklist on pages 24 &

25 before commissioning the unit.

Qualified personnel must correct any deficiencies

with the installation before commissioning takes place.

Prior to starting the humidifier, it is necessary to

ensure that no dirt or dust has accumulated in the

electronics compartment. A build up of dust on the

electronics can cause overheating and early failure of

the components.

FILLING THE SYSTEM

Before the SE unit will open the steam valve, it

must be filled with water and the internal controller

must have completed a self-test to verify that the water

fill system, level controller, and drain pump are

functioning correctly.

·Close the shut-off valve in the pressure steam

supply line.

·Remove any demand signal to the unit.

·Open the shut-off valve in the water supply line.

·Switch the humidifier on.

·The fill valve will energize and the tank will begin

to fill (fill time is approximately 10 to 30 minutes

depending on the SE model). Once the float

chamber has registered low water level, the unit

will perform an internal test of the fill and drain

system as described in the Water Management

section.

·At the completion of the test, the float chamber

will indicate middle float position (green LED) and

the unit will go into standby mode until a demand

signal is received.

STARTING THE HUMIDIFIER

Once the tank has been filled, the humidifier is

ready to be put into operation.

·Verify that the inspection checklist has been

completed and all deficiencies with the

installation have been corrected.

·Open the shut-off valve in the pressure steam

supply line.

·Open the shut-off valve in the water supply line.

·Ensure all external controls connected to the

security loop are closed.

-24-

Float Chamber

ressure

Equalizer

Aux. Drain

Drain Pump

Dual Fill Valv

Drain Outlet

Vacuum Break

Fill Chamber

Main Fill to System

Internal Trap

Figure #9

Plumbing Connections

·Verify that the building demand signal is

connected to the humidifier.

·Install and secure all cabinet service doors.

·Switch the humidifier on.

·At the completion of the float test, the humidifier

will begin to open the steam valve and warm up

the water.

·Depending on the system demand, the actuator

will open or close to control the amount of steam

injected into the heat exchangers.

·The water in the tank will heat up and begin to

boil, delivering steam to the distribution system.

·During the boiling sequence the water fill valve

will periodically activate to replenish water that

has evaporated from the tank.

·Once the humidity requirements have been

satisfied (demand drops below minimum %) the

steam valve will be de-energized and will be shut

off.

·The humidifier will go into standby mode until the

next call for humidity.

TAKING OUT OF OPERATION

If it is required that the humidifier be taken out of

operation (e.g. for service or end of season

shut-down), proceed as follows:

·Remove the demand signal or open the security

loop, allowing the steam valve to shut off.

·Switch the main power switch from On to Off and

then to the Drain position. The drain pump will be

energized and the tank will begin to drain.

·Once the tank has completely emptied, shut off

the drain switch.

·Close the shut-off valve in the pressure steam

supply line.

·Close the shut-off valve in the water supply line.

·Isolate the humidifier from the electrical power

supply at the main disconnect switch.

-25-

SE Series Inspection Checklist

SE INSPECTION CHECK LIST

HUMIDIFIER MOUNTING

£Verify proper clearances around the unit

£Humidifier mounted level

£Humidifier properly secured to stand and stand bolted to floor

£All service doors accessible

£Roof curb sized correctly (Outdoor Model Only)

PRESSURE STEAM PIPING

£Test joints for leaks

£Manual shut-off valve installed prior to Steam Valve & Actuator

£F&T Trap installed prior to Steam Valve & Actuator (by others)

ATMOSPHERIC STEAM or STEAM DISTRIBUTION LINES

£Slope up 2” per 12”

£Sloped back to drain

£Slope down1/2” per 12”

£Trapped 2” more than static duct pressure

Traps £- Size _______________

Insulated £

Length/Size _______________

90º Elbows £qty: ______

45º Elbows £qty: ______

Can condensate be trapped anywhere in the steam line? Yes £No £

CONDESNATE LINES

£Sloped back to drain

£Trap is greater than 2” duct static pressure

£Size of Trap ___________

-26-

SE Series Inspection Checklist

SUPPLY WATER LINE

£Nortec supplied adapter installed on fill valve (1/2” NPT)

£Manual shut off valve and union installed

£Verified pressure (30-80 psig)

£Water source of 10 L/min (2.6 gpm) for SE 100-675 or 17L/min (4.5 gpm) for

SE 950-1050

£Leak tested

£½” dia. at max 4ft from the unit

DRAIN LINES

£Air gap located within 3ft of the unit

£Minimum drain line size of 1” – 1.5” in dia.

£Downward slope

£Tundish (funnel) installed to provide air gap

£Temperature rating of piping

£Hose connections tightened

£Auxiliary drain piped with shut off valve to tundish

WATER QUALITY

Well Water £City Water £Softened Water £RO/DI £Water £

Conductivity:______ mmhos Hardness: ______ GPG Silica: ______ ppm

Chlorides: ______ ppm pH: ______

ELECTRICAL INSTALLATION

£Comply with local regulations

£Proper supply voltage (must match rating plate) and breaker size

£Electrical disconnect switch close to humidifier

£Cables properly affixed

£Low voltage wiring & control signal(s) wired to correct terminals

£Humidifier configured for correct control signal(s)

TYPE OF CONTROLS INSTALLED/LOCATION/WIRING/SETTING

£High Limit ___________________________________________

£Air Proving ___________________________________________

£Modulation Control _____________________________________

£On/Off Control ________________________________________

£Controls by Nortec ____________________________________

£Control by Others _____________________________________

-27-

SCALE MANAGEMENT

The steam exchange humidifier will periodically

“blowdown” water from the tank to reduce the

concentration of total dissolved solids that accumulate

during long term operation.

Steam Exchange Humidifiers are shipped factory

set with a blowdown of 25%. This setting ensures that

scale build-up will be minimized for all water

conditions.

Once the water conditions are known, the

blowdown rate can be adjusted by software (SETC

models) or by using dip switches on the logic control

board (SEP models).

Another effective means of controlling the amount

of scale in the tank is with the use of the Full Tank

Blowdown (FTBD) built into the software. When this

feature is activated, the drain pump will be energized

to drain the entire contents of the tank and then the

tank will be refilled with fresh water, thus keeping the

amount of total dissolved solids to a minimum. The

feature can be programmed in the software to occur

after a specific amount of operating time and can also

be triggered by a signal sent to the humidifier from a

building management system.

WATER QUALITY

Due to the wide range of water conditions found

throughout North America it is important that the

blowdown is set according to the local water

conditions. By water conditions we are referring to the

hardness of the water supplied to the humidifier. The

hardness is measured in grains per gallon. It is also

important to test for silica content. Silicates may cause

foaming and contribute to scale buildup in the

humidifier tank and float chamber.

If you are unaware of the hardness or silica

content of your water supply, there are many “do it

yourself” kits which can be purchased, or there are

several companies that will perform the tests for a

reasonable price. You can even contact your

municipality for your water condition or order the

NORTEC water test kit.

Note: Water quality conditions resulting in

component failures are not covered under

NORTEC’s standard warranty.

·Silica Test: Measured in ppm (parts per million)

Follow the directions with the kit. A high reading will

decrease the performance of your system. The

recommended operating range for silica is 0 ppm to

14 ppm. Note: A high silica content along with a

high hardness content may increase the service

intervals of the system . Consult the factory if this

condition exists at the site.

·Hardness: Measured in gpg (grains per gallon).

Follow the instructions on each individually

wrapped test strip and use the colour chart

provided. The recommended operating range for

hardness is 0 gpg to 12 gpg. Note: High

hardness along with high silica may increase the

service intervals of the system. Consult the

factory if this condition exists at the site.

·pH: Follow the directions on the test strip bottle.

The recommended operating range for pH is 6.5

to 7.5 on the colour scale. Consult the factory if

outside these parameters.

·Chlorides: Measured in ppm (parts per million).

Follow the directions on the test strip bottle. The

recommended level for chlorides is not to exceed

25 ppm. High levels of chlorides will attack

stainless steel. Add an in-line carbon filter that

will remove up to 99% of the chlorides. Consult

the factory for additional information if your water

contain high levels of chlorides.

·Conductivity: Measured in micromhos. Follow

the directions for the conductivity pen found

inside the box. Multiply the digital reading by 1.5.

The recommended operating range for

conductivity is 0 - 1500 micromhos. Consult the

factory if you measure outside these parameters.

-28-

Figure #10

Site Water Test Kit P/N 1507214

Tech-

nology Water

Type Water

Cond.

Range

Hard-

ness

Range

Silica

Range Alklin.

Range Chlor.

Range

Steam

Exch-

ange

Microm

-hos GPG PPM pH PPM

Potable 0-1500 0-12 0-14 6.5-7.5 0-25

Treated 0-100 0-1 0-1 7-7.5 0-25

·NORTEC recommends performing a semi-annual

water analysis to ensure optimal performance.

·The humidifier is intended to operate on cold

potable tap water.

·DO NOT use a hot water source to supply the

humidifier. Minerals will adhere more easily to

surfaces and the fill valve's small flow regulating

orifice could become plugged.

·Consider using a water softener. Longer

operating times between tank cleaning will be

reached on softened water.

·Reverse osmosis (RO) water can provide very

long times before cleaning is required since it is

cleaner than softened water. Deionized (DI)

water may be used with all models.

·Consult your NORTEC representative for a

quote on a water treatment system.

MAINTENANCE

To ensure proper performance and long operating

life of the SE humidifier, a proper maintenance

schedule should be followed. Since the amount and

type of maintenance required is generally a result of

how much the humidifier operates, all SE humidifiers

monitor the amount of steam produced over time, and

will indicate when service is required. All units come

factory set with a service interval of 500 hours. This

service interval can be adjusted through software

(SETC models) or by jumpers settings (SEP models)

on the logic control board. Refer to the maintenance

schedule for maintenance guidelines and intervals.

All maintenance work must be performed by

experienced and trained personnel.

NOTE: Use only NORTEC original parts to

replace damaged or defective components. Failure to

do so may cause improper operation of the humidifier

and will void warranty.

DRAINING THE TANK

During extended periods of inactivity such as off-

season, it is advisable to drain the water from the tank.

On all models this is accomplished by switching the

unit to “Drain”.

Do not remove the front or top clean out port on

the tank until the unit is completely drained and cool.

The SETC model includes a pre-cleaning

sequence feature. When activated (through the

keypad), the unit will flush the humidifier, refill with cold

water, and flush again reducing the scale accumulated

at the bottom of the tank.

CLEANING THE STAINLESS STEEL TANK

& FLOAT CHAMBER

CAUTION: Water and scale may be hot enough

to cause burns. Turn off humidifier and allow it to cool

before cleaning.

It is recommended that the tank be cleaned at

least once every season to maintain optimum

operation. It may be necessary to increase the

frequency of cleaning or increase the blowdown

setting in areas of hard water or prolonged annual

usage (see the “Blowdown Setting section of this

manual).

Cleaning of the humidifier is mandatory and must

be performed on a regular basis.

To reduce cleaning time, use the pre-cleaning

sequence on the SETC model to help evacuate

mineral debris from the unit. Check the controller

operation to activate this feature.

The heat exchanger walls are usually self

cleaning. The mineral build-up flakes off, due to the

expansion and contraction and boiling action during

on/off cycles, and settles to the bottom of the tank. The

end block will have scale build-up. These surfaces

must be cleaned at regular intervals.

Most cleaning will be done through the front door

of the unit. Remove cabinet door on the left of the

LCD display using a Philips screwdriver. Remove the

side tank port opening, by removing the 3/16” nuts (½”

key or socket is needed).

Additional cleaning ports are available on the top

of the SE 475/675 and SE 950/1050 models. To

access these ports, remove the top cabinet panel

using a Phillips screwdriver. Remove the top cleaning

ports by removing the nuts.

-29-

Removal of the heat exchanger(s) is not

necessary to clean the inside of the tank.

Scoop out loose scale with a small shovel such as

those used for gardening. Once loose scale is

removed, use a scraper such as a plastic windshield

scraper to remove scale adhering to the tank or heat

exchanger walls. DO NOT use a metal scraper that

will scratch the stainless steel surfaces of the tank.

Once all large pieces of scale have been removed,

vacuum the tank out with a shop vacuum, fill part way

with water, and flush remaining sediment from the tank

through the drain.

Due to the presence of polymer gaskets around

the heat exchanger, do not use any harsh cleaning

chemicals. Please consult NORTEC prior to using any

chemicals. Once the lid has been replaced, fill the unit

with water and examine for leaks.

Inspect the drain and fill lines assembly for scale

build-up and if necessary, remove them from the

humidifier for cleaning. If the blowdown assembly

becomes blocked, scale build-up in the tank will be

accelerated and damage to the humidifier could result.

The drain pump may be opened and cleaned. Consult

NORTEC for proper procedure.

Re-assemble the drain and blowdown if they were

removed. Re-install tank top and side lids making sure

tank cover gasket is intact. Do not over tighten nuts. If

using a torque wrench do not exceed 50 in-lb ( 5 ft-lb).

Re-seal all cabinet lids.

Cleaning the float chamber is accomplished by

removing the screws to access the floats and using a

small brush to gently clean the scale from the floats

and chamber. Ensure that floats are back in place and

o-ring is properly seated before tightening screws on

float chamber. Special attention must be used when

removing or re-installing the float chamber. The switch

board must be replaced into the same position as

before cleaning and the tie-wrap must be used to hold

the float chamber in position.

ADJUSTMENTS/REPLACEMENTS OF

COMPONENTS

NOTE: CONSULT FACTORY PRIOR TO THE

REPLACEMENT OF ANY COMPONENT.

DANGER - SHOCK HAZARD - Make sure

electrical power to the appliance is disconnected

to avoid potential serious injury or damage to

components.

SERVICING THE UNIT

Caution: Disconnect power before servicing this

appliance.

Caution: Label all wires prior to disconnection

when servicing controls. Wiring errors can cause

improper and dangerous operation.

Float Chamber Replacement (Figure #6)

1. Drain the contents of the tank and then shut

off electrical power and water supply to the

humidifier.

2. Remove the left front service access door.

3. Remove the cable connection to the float

board.

4. Remove the hose clamps on the float chamber

and remove all hoses (note the correct hose

assignment).

5. Squeeze both sides of the mounting bracket to

release it from the slots in the support bracket

behind the float chamber.

6. Reverse the above sequence to install the

new module.

7.7. Leak test all water connections before

re-commissioning the humidifier.

-30-

Figure #11

Float Chamber Removal

Transformer Replacement (Figure #12)

1. Shut off electrical power to the appliance.

2. Remove front access door.

3. Disconnect wiring connections from

transformer leads labeling as required.

4. Remove screws (2) holding transformer.

5. Reverse above procedure to re-install.

Fill Valve Replacement (Figure #13)

1. Shut off electrical power and water supply to

the humidifier.

2. Remove the right side service access door.

3. Remove all wiring connections to the fill valve.

4. Remove the hose clamps on the fill valve

outlets and remove hoses (note the correct

hose assignment).

5. Remove the 2 screws securing the fill valve to

the cabinet and remove the valve.

6. Reverse the above sequence to install the

new module.

7.7. Leak test all water connections before

re-commissioning the humidifier.

Drain Pump Replacement (Figure #14)

1. Drain the unit completely. If the pump is

broken use the auxiliary drain out port.

2. Shut off electrical power to the appliance.

3. Remove front and right doors.

4. Remove wiring connections to the pump.

5. Remove hoses attached to the pump.

6. Reverse above procedure to re-install.

NOTE: To avoid water spillage (some water

will be left on the tank bottom after manual

-31-

Figure #12

Transformer Detail

Figure #13

Fill Valve Detail

Figure #14

Drain Pump Detail

draining) use shop vac to remove left over

water.

Fill Box Replacement (Figure #15)

1.1. Drain the contents of the tank and then shut

off electrical power and water supply to the

humidifier.

2.2. Remove the right side service access door.

3.3. Remove the hose clamps and remove all

hoses.

4.4. Undo the 2 nuts securing the fill box to the

tank.

5.5. Reverse the above sequence to install the

new module.

6.6. Leak test all water connections before

re-commissioning the humidifier.

Removal of Heat Exchanger

1.1. Take the humidifier out of operation.

2. Unlock and remove the right side panel(s).

3. Unlock and remove the left and the right top

panels.

4. Free all piping of the respective heat

exchanger.

5. Unscrew the nuts on the heat exchanger and

pull out the heat exchanger from the tank.

Re-installation is carried out in the reverse

sequence. Replace all seals with new ones.

SETC MODELS

Faults are indicated with a fault message on the

display of SETC models. Recovery from lockout

requires resetting of the humidifier. This can be

achieved by momentarily shutting off the power switch

then turning it back on, or by pressing the reset button

on the logic control board mounted inside the electrical

cabinet.

A history of all faults is stored in memory of

the software and can be viewed through the service

level on the display. Refer to the keypad display menu

structure at the end of the manual.

SEP MODELS

Faults are indicated on SEP models with blinking

red lights. Check the LED sequence for the fault

before shutting off the unit. Resetting the humidifier

clears the fault. This can be achieved by shutting off

the power switch, then turning it back on.

FAULT CONDITIONS

Fault F1- Humidifier no filling: Yellow LED

Flashes twice.

Probable Cause:

- Fill Valve not energizing

- Water supply interrupted

- Float level indication inoperable

- Tank leaking.

Fault F2 - Humidifier not draining: Yellow LED

flashes once.

Probable Cause:

- Drain pump blocked

- Drain pump inoperable

- Float level indication inoperable

- Drain line restricted

Fault F3 - Float level inconsistent: Yellow LED

flashes four times.

Probable Cause:

- Defective float level board

- Defective float chamber

-32-

Figure #15

Fill Box Detail

-33-

SETC SETTINGS

3 DAY DRAIN

3 DAY DRAIN FUNCTION SW3/7

Function Disabled OFF

Function Enabled (Factory set) ON

KEEP WARM/INDOOR FREEZE PROTECTION PACKAGE

3 DAY DRAIN FUNCTION SW5/7

Function Enabled ON

Function Disabled (Factory set) - 3 day drain OFF

ANALOG CHANNEL 1

Input Range SW1/1 SW4/1 SW 4/2

0-10V input OFF OFF OFF

0-5V input OFF ON OFF

2-10V input OFF OFF ON

1-5V input OFF ON ON

0-20mA input ON OFF OFF

4-20mA input ON OFF ON

ON/OFF + inst. jumper

between4&6 ON ON ON

ANALOG CHANNEL 2

Input Range SW1/2 SW4/3 SW 4/4

0-10V input OFF OFF OFF

0-5V input OFF ON OFF

2-10V input OFF OFF ON

1-5V input OFF ON ON

0-20mA input ON OFF OFF

4-20mA input ON OFF ON

ON/OFF + inst. jumper

between4&6 ON ON ON

-34-

INPUT CHANNEL

DUAL CHANNEL FUNCTION SW4/5

One Channel Input OFF

Dual Channel Inputs ON

TIME PROPORTIONING

TIME PROPORTIONING SW4/7

Disabled (Factory set) OFF

Enabled ON

MAINTENANCE SHUTDOWN

MAINTENANCE SHUTDOWN FUNCTION SW5/4

Unit will shutdown 72 hours after service time expired, by gen-

erating an error. OFF

Unit will display warning but continues to operate. (Factory set) ON

FULL TANK BLOWDOWN

FULL TANK BLOWDOWN FUNCTION SW5/8

Disabled OFF

Enabled (Factory set) ON

DIP Switch Settings

SETC

Logic Control Board

-35 -

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09.05.03 9:30

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-42-

NORTEC TC CONTROLLER

INTRODUCTORY SCREEN

Product name

NORTEC SETC (100-1050)

Version

The display will indicate the revision level of the

control software

System

Depending on system activity, the display will

toggle between LOCKOUT, ACTIVE or STANDBY.

Date/Time

The actual date and time will be displayed.

MAIN MENU

The main menu lists the available sub menus

where system adjustments can be made. Some of

the menus are password and jumper protected to

block access by unauthorized personnel.

System status

Displays various system parameters as the user

scrolls through the lists. For further details see specific

section below.

Service Level: (password protected)

This section is specific to all service related

activity. For further details see specific section below.

User Settings: (password protected)

This section allows the user to set parameters

specific to their requirements. For further details see

specific section below.

NORTEC SETC 250

VERSION X.XX

SYSTEM LOCKOUT

06.07.03 9:30

SYSTEM STATUS

SERVICE LEVEL

USER SETTINGS

-43-

SYSTEM STATUS

SCREEN 1:

Status:

Displays the present status of the system.

Depending on system activity at the time, the field

could display: lockout (security loop open), active (unit

generating steam) or standby (security loop closed but

no modulation demand signal).

Demand channel 1:

This field will display the modulation demand input

on that channel.

Demand channel 2:

Field only visible if the unit is configured for dual

modulation. This field will display the modulation

demand input on that channel.

Capacity limit:

This field displays the user adjusted capacity limit

set for the humidifier.

SCREEN 2:

System demand:

This field displays the total system demand as a

percentage.

Valve output:

This field will display how much open the valve is

in %.

SCREEN 3:

Water level:

This field displays the present water level detected

by the float system.

Fill valve:

This field displays status of fill valve, on, off, or

pulsed.

Drain pump:

This field displays status of drain pump, on or off.

Drain cool:

This field displays the user (or factory default)

setting.

OFF: fill will not activate when drain is activated.

ON: fill will activate whenever the drain activates.

SMART: fill will activate only when drain water is

hot.

STATUS: LOCKOUT

DEMAND CHANNEL 1 0%

DEMAND CHANNEL 2 0%

CAPACITY LIMIT 0%

DESGN PRSS. 15.0 PSI

VALVE OUTPUT XXXLB

WATER LEVEL: X

FILL VALVE [O/I]

DRAIN PUMP [O/I]

DRAIN COOL: SMART

SCREEN 4:

Service interval:

This field displays the user (or factory default)

setting for the humidifiers service reminder in steam

hours.

Remaining:

This field displays the amount of time (steam

hours) remaining before the next service is to be

performed.

Start Date:

This field displays the date this service interval

began.

SCREEN 5:

Security loop:

This field displays the status of the security loop

(terminals 1 and 2 on LV terminal strip). If it is open

the display will indicate “O”, if it is closed the display

will indicate “I”.

Tank sensor

This field displays the status of the tank sensor

input. If it is open the display will indicate “0”, if it is

closed the display will indicate “1”. Closed indicates

that the tank temperature is above 160ºF (70ºC).

This input is used for the “keep warm” feature and

for activating the fill valve during blowdown cycles.

SCREEN 6:

3 day drain

This field indicates if the feature has been selected

(0 = no, 1 = yes).

Keep warm

This field indicates if the feature has been selected

(0 = no, 1 = yes).

Blowdown rate:

This field displays the selected blowdown rate.

Full tank blowdown

This field indicates if the feature has been selected

(0 = no, 1 = yes).

-44-

SECURITY LOOP [0/1]

TANK SENSORS [0/1]

3 DAY DRAIN 1

KEEP WARM 0

BLOWDOWN RATE XX%

FT BLOWDOWN 1

SERVICE INTERVAL

XXX HOURS

START DATE: MM:DD:YY

REMAINING XXX HOURS

-45-

SERVICE LEVEL

The service level area is where service related tasks are performed. Below is a description of each field and what

can be performed in them. When a parameter requires a change, press the two arrow key and enter the password

(0335). As long as you remain in this section, you will not need to enter the password more than once.

Service interval

In this area the customer can set a service interval for humidifier MAINTENANCE.

MAINTENANCE TIME

XXX HOURS

This field displays the user selected MAINTENANCE time. To change the time selected enter the user code and

adjust the time in SET MAINT. TIME (0-3000 hours, 0 = disabled).

MAINTENANCE DUE

XXX HOURS

This field displays the time remaining until the next service interval. To reset the MAINTENANCE due time, enter

the user code and select CLEAR REMINDER?

Service history

In this area the customer can view the history of service maintenance performed on the humidifier.

SERVICE HISTORY X/Y

The service history stores the last 10 service periods.

X = service occurrence, where 1 is the most recent.

Y = total number of recorded services (up to 10 maximum).

SERVICE INTERVAL

SERVICE HISTORY

FAULT HISTORY

TANK DRAIN

TANK PRE-CLEAN

BURNERS

SHORT CYCLE DELAY

MAINTENANCE TIME

XXX HOURS

MAINTENANCE DUE

XXX HOURS

SERVICE INTERVAL

XXX HOURS

CLEAR REMINDER?

SERVICE INTERVAL

SERVICE HISTORY

FAULT HISTORY

TANK DRAIN

TANK PRE-CLEAN

SERVICE HISTORY X/Y

STEAM HOURS XXXX

(DATE/TIME)

SERVICE INTERVAL

SERVICE HISTORY

FAULT HISTORY

TANK DRAIN

TANK PRE-CLEAN

-46-

STEAM HOURS XXX

(DATE/TIME)

This field displays the steam hours and the date and time when the specific service (X) was performed.

Fault history

In this area the customer can view the history of recorded faults for the humidifier.

FAULT HISTORY X/Y

The fault history stores the last 54 system faults.

X = fault occurrence, where 1 is the most recent.

Y = total number of recorded faults (up to 54 maximum).

(type of fault) and (date/time)

A description of the fault type is displayed along with a date and time stamp when the fault occurred.

Tank Drain

The tank drain feature, when activated, will activate the drain valve for a fixed period of time (depending on unit

size).

To drain the tank press enter when CONTINUE is selected. During the tank drain cycle the display will indicate

the tank is draining and the amount of time remaining on the cycle. To interrupt the cycle the unit must be switched off

then on. Must enter service password to activate this function.

FAULT HISTORY X/Y

(TYPE OF FAULT)

(DATE/TIME)

SERVICE INTERVAL

SERVICE HISTORY

FAULT HISTORY

TANK DRAIN

TANK PRE-CLEAN

THIS WILL DRAIN

CONTENTS OF TANK

THIS WILL DRAIN

CONTENTS OF TANK

CONTINUE?

SERVICE INTERVAL

SERVICE HISTORY

FAULT HISTORY

TANK DRAIN

TANK PRE-CLEAN

-47-

Tank Pre-Clean

The tank pre-clean feature when activated will activate the drain valve for a fixed period of time (depending on

unit size). The fill valve will then activate, filling the tank partially with cold water. At the completion of the fill cycle the

tank will once again drain.

This will help to flush out any accumulated minerals as well as cool the tank for the service personnel.

To pre-clean the tank press enter when CONTINUE is selected. During the tank pre-clean cycle the display will

indicate the tank is draining and the amount of time remaining on the cycle. To interrupt the cycle the unit must be

switched off then on. Must enter service password to activate this function.

User Settings

When a parameter requires a change, press the two arrow key and enter the password (0335). As long as you

remain in this section, you will not need to enter the password more than once.

Date / Time Units

This field is used for modifying the Date, time and the units of measurement. The date and time are important

parameters when features such as full tank blowdown are enabled.

DATE/TIME

WATER MANAGEMENT

CONTROL TYPE

CAPACITY LIMIT

-48-

Time (of day)

To set the time of day, highlight the selection then enter the user code (0335). Press enter. Use the UP/DOWN

arrows to adjust the hours (24 hour format). Pressing enter saves the setting and indexes the display to minutes. Use

the UP/DOWN arrows to adjust the minutes. Pressing enter saves the setting and returns the user to the previous

menu.

Date

To set the date, highlight the selection then enter the user code (0335). Press enter. Use the UP/DOWN arrows to

select the month. Pressing enter saves the setting and indexes the display to number of the month. Use the

UP/DOWN arrows to adjust the number. Pressing enter saves the setting and indexes the display to year. Use the

UP/DOWN arrows to adjust the year. Pressing enter saves the setting and returns the user to the previous menu.

Water Management

This section allows the user to set time based parameters and adjust water control parameters.

FTBD Hours

This section allows the user to set the frequency of full tank blowdowns (FTBD). FTBD’s drains and re-fills the

entire contents of the humidifier after a preset accumulated operating time. Run time is measured in steam hours

(weighted run time hours), and can be adjusted from 0 hours (feature off) to 400 hours in 25 hour increments.

Once the FTBD time has expired, the controller will wait until the FTBD hour to initiate the cycle. This prevents

random drains at times when they would be inconvenient.

TIME HH:MM

DATE MM.DD.YY

DATE/TIME

LANGUAGE CONTROLS

WATER MANAGEMENT

CONTROL TYPE

CAPACITY LIMIT

CHANGE VALUE

MM.DD.YY

CHANGE VALUE

XX:XX

0335

-49-

FTBD Hour

Works in conjunction with FTBD hours.

Here the user sets the time of day (24 hour format) when they want the FTBD to execute. The time can be set to

trigger the cycle during off hours, when the humidity requirements are minimal.

The time is adjusted in one-hour increments.

Blowdown Rate

This parameter adjusts the frequency of blowdown cycles.

Depending on water quality, the blowdown rate can be adjusted from 5% to 50%. The percentage is based on the

steam production rate i.e. a 10% BD rate will drain 10 kg. of water for every 100 kg. of steam produced.

The higher the mineral content of the water the higher the BD rate should be set.

Float Check

This parameter sets the time of day the controller will force a float check.

Float checks are important to ensure the water level detection system is operating correctly. The float check also

tests the fill and drain system and will report any problems detected.

To set the time of day, highlight the selection then enter the user code (0335). Press enter. Use the UP/DOWN

arrows to adjust the hours (24 hour format). Pressing enter saves the setting and indexes the display to minutes. Use

the UP/DOWN arrows to adjust the minutes. Pressing enter saves the setting and returns the user to the previous

menu.

FTBD HOUR

CHANGE VALVE XXX

DATE/TIME FTBD HOURS XXX

FTBD HOUR XX

BLOWDOWN RATE XX%

FLOAT CHECK HH:MM

FILL CORRCTN XX%

DRAIN CORRCTN XX%

DRAIN COOL: ON

WATER MANAGEMENT

CONTROL TYPE

CAPACITY LIMIT

0335

BLOWDOWN RATE

CHANGE VALUE XX%

STEAM OUTPUT

DATE/TIME FTBD HOURS XXX

FTBD HOUR XX

BLOWDOWN RATE XX%

FLOAT CHECK HH:MM

FILL CORRCTN XX%

DRAIN CORRCTN XX%

DRAIN COOL: ON

WATER MANAGEMENT

CONTROL TYPE

CAPACITY LIMIT

0335

FLOAT CHECK

CHANGE VALUE HH:MM

DATE/TIME FTBD HOURS XXX

FTBD HOUR XX

BLOWDOWN RATE XX%

FLOAT CHECK HH:MM

FILL CORRCTN XX%

DRAIN CORRCTN XX%

DRAIN COOL: ON

WATER MANAGEMENT

CONTROL TYPE

CAPACITY LIMIT

0335

-50-

Fill CORRCTN (correction)

Used for adjusting the fill rate. Adjustments to be made under factory direction only.

Drain CORRCTN (correction)

Used for adjusting the drain rate. Adjustments to be made under factory direction only.

Drain Cool

The customer can select the type of drain water tempering they require (depending on local plumbing codes)

The customer can select ON, OFF, or SMART.

ON – whenever the drain valve is activated through software, the fill valve will automatically activate. This is the

factory default setting, but is the most wasteful of water since it will activate even if the drain water is cool.

OFF – The drain water is never tempered. This can be used where plumbing codes permit. Some process waters

are very expensive, so the customer may choose to temper the drain water through other means.

SMART – The humidifier has a tank sensor that communicates the water temperature to the controller. If the

water is hot during drain cycles the fill valve will be activated. This is the most “water smart” of the settings.

Control Input

This section is used for configuring the controller for a controller input or a transducer input.

To select control input, highlight the selection then enter the user code (0335). Press enter. Use the UP/DOWN

arrows to select control input.

The controllers dip switches then determine the type (0-10 Vdc, 0-20 mA, etc.) of control signal to process.

DRAIN COOL:

OFF

SMART

DATE/TIME FTBD HOURS XXX

FTBD HOUR XX

BLOWDOWN RATE XX%

FLOAT CHECK HH:MM

FILL CORRCTN XX%

DRAIN CORRCTN XX%

DRAIN COOL: ON

WATER MANAGEMENT

CONTROL TYPE

CAPACITY LIMIT

0335

CONTROL TYPE

CONTROL INPUT

TRANSDUCER INPUT

DATE/TIME CONTROL TYPE

CONTROL INPUT

TRANSDUCER INPUT

WATER MANAGEMENT

CONTROL TYPE

CAPACITY LIMIT

0335

-51-

Transducer Input

This section is used to configure the controller for transducer signals

In this section you can adjust the proportional, integral and derivative constants. There is also a PID learn

algorithm which will tune the various PID constants for optimal performance.

Capacity Limit

In this section the customer can adjust the maximum output of the humidifier between 25-100%.

To adjust the maximum capacity, highlight the selection then enter the user code (0335). Press enter. Use the

UP/DOWN arrows to adjust the output between 25 and 100%.

-52-

FAULT AND WARNING LIST

FAULT

DRAIN NOT

WORKING

DRAIN IS BLOCKED

There are many time windows in the GS

software. If, during a drain cycle, the time

window for the water level to drop is exceeded,

this fault is generated

-Ensure that pump is being energized

-Check for blockage in all aspects of

the drain system

-Float board defective

-Consult factory

FAULT

FLOAT CHECK

Once every 24 hours (provided the unit is

powered and in an operating or standby

condition) the controller will test the water

level detection circuit. If the test fails this fault

is displayed

-Ensure the proper operation of the fill

valve and drain valve via the

diagnostics screen

-Float board is defective

-Consult factory

FAULT

ILLEGAL FLOAT

COMBINATION

If the controller detects two or more float level

readings, which are not expected (ex. Switch 1

and 3 ON or switch 1, 2, and 3 ON) this fault

will be recorded.

-Miswired float board

-Defective float board

-Consult factory

FAULT

FILL VALVE ON

DETECTION

INCONSISTENT

The controller monitors the water level as it

fills and drains. It expects to see the levels

increase logically (1-2-3-4-5). If the water level

increases and jumps a step (1-2-4-5) this fault

will be generated. The same holds for water

level decreasing.

-Float board defective

-Contact agent for replacement float

board

FAULT

KEEP WARM TIME

OUT

TOOLONGTO

HEAT

During a keep warn cycle, if the tank

temperature sensor does not open within a

certain time window, this fault is generated.

-Ensure that the thank temperature

sensor is connected

-Defective tank temperature switch

-Contact agent for replacement switch.

FAULT (WARNING)

MAINTENANCE

TIME

HAS ELAPSED

In the user menu the user sets the maintenance

time. Once this time expires a warning is

displayed. 72 hours later the warning changes

to this fault. The maintenance time is measured

in weighted operational hours.

With switch 5, #4 deactivated, this fault is

enabled

-Perform tank cleaning and all other

maintenance requirements outlined in

the manual.

SETC Fault (Warning)

Displayed

Description of Fault Troubleshooting

-53-

MANDATORY MAINTENANCE SCHEDULE

PARTS 30 DAYS

after

initial

start-up

MID End of

Season WHAT NEEDS TO BE DONE?

REGULAR MAINTENANCE PREVENTATIVE MAINTENANCE

Drain Lines X

- Switch to drain and make sure

water flows freely. Unit should be

completely drained afer a

maximum of 20 min.

Tank XXX

- Adjust blow down times when

required. Check that scale has

not accumulated above 2”.

- Drill out tank nipples when

required to ensure nipples are not

blocked with scale.

- Clean tank when required. - Clean tank.

Float Chamber X X X - Ensure floats move freely - Clean scale from float chamber

and hose connecting to it.

Fill Lines X X X - Inspect for leaks.

Drain Lines X X X - Inspect for leaks at the drain

pump, fill cup and float chamber.

Steam Traps X -Clean to remove all deposits.

- If damaged replace trap seat if

required

-Inspect for corrosion

-Check floats move freely

- Install new thermal disc if

-Check if orifices are not plugged

- Clean

Wye Strainer X X - Inspect for corrosion

- Clean strainer

- Replace any parts showing signs

of wear

Condensate X - Check for leaks

- Clean

- Replace worn seals.

- Follow maintenance

recommendations.

Steam Valve’s X - Check valve seat

- Clean to remove all deposits.

- If damaged replace steam valve

if required

Boiler X - Putting out correct steam

pressure

- Water test

- Follow manufacturer’s

recommendations

-54-

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101

113

102

103 105

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112

114

110

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108

106

SE 100-1050

Internal - Exploded View

July 2007

-56-

-57-

SE Series Spare Parts List - Internals

SE100 SE175 SE 250 SE 375 SE 475 SE 675 SE 950 SE1050

101 Cover Plate, Clean-Out Port 2523457 11112233

102 Gasket, Tank Cover Plate 2524361 11112233

103 Fill Box 2526152 11111111

104 Vacuum Break Valve 1/2"npt 1505959 11111111

105 P-Trap 2526521 11111111

106 Heat Exchanger Gasket

Single 2524405 11

Dual 2524403 1 1 2 2 3 3

107 Dual Fill Valve 10.0 l/min & 0.35 l/min 1505759 11111111

108 Auxilliary Drain Termination 1506925 11111111

109 Steam Trap, 15psi 1508849 11112233

110 Heat Exchanger Replacement Kit

Mini 2530901 11

Single 2530902 1 1 2 2 3 3

111 Drain Pump 24v 60 hz 1502644 11111111

112 Lower Mixing Box 1506749 11111111

113 Tank Thermal sensor 1506026 11111111

114 Float Chamber 1115933 1 1 1 1 1 1 1 1

115 Float Chamber Mounting Bracket 1113777 1 1 1 1 1 1 1 1

116 Float Board 2511137 11111111

Quantity per unit

Item # Description Part #

SE 100-1050

Indoor Cabinetry - Exploded View

July 2007

See exploded view

on the right side

202

201

203

205 204

208

206 207

Exploded view of item 208

208c

208a

208b

-58-

-59-

SE Series Spare Parts List - Cabinetry

Item # Description Part # SE100 SE175 SE 250 SE 375 SE 475 SE 675 SE 950 SE1050

201 Service Door Assembly

Mini 2524439 1 1

Single 2524440 1 1

Double 2524441 1 1

Triple 2524458 1 1

202 Front Door Assembly 2528421 11111111

203 Recessed Handle 2523444 11112222

204 Transformer 24/16V 15VA 50/60 hz 1505760 11111111

205 Control Board

SETC units 1508357 11111111

SEP units 1508577 11111111

206 I/O Board (SETC units) 1504760 11111111

LED Board (SEP units) 1508619 11111111

207 Transformer, 120/24V, 150VA 1504859 11111111

Fuse for Transformer, 6.25 Amp 1505020 11111111

208a LCD Display Assembly 1507741 11111111

b LCD Mounting Bracket 1506951 11111111

c On-Off-Drain Switch 1453001 11111111

Slotted Wire Duct (not shown) 1506041 order by length required

-60-

SE 50

INTERNALS-EXPLODED VIEW

3/31/2006

-61-

SE Spare Parts List - Internals

Item Description Part No. SE 50

1 Tank Replacement Kit, SE50 2520458 1

2 Gasket, Tank/H.E. Assembly, SE50 1510179 1

3 Heat Exchanger Replacement Kits, SE50 2520460 1

4 Gasket, Clean Out Port, SE50 1510180 1

5 Cover Plate Kit, Clean Out Port, SE50 2520461 1

6 Rail, Float Chamber Support, SE50 2520241 1

7 Bracket, Float Chamber Mount, SE50 2520240 1

8 F&T Trap Assembly, with Plumbing, SE50 1500181 1

9 Fill Box Assembly with Connections, SE50 2520235 1

10 Pump Drain, 24VDC, 60HZ (DPS 25-119) 1502644 1

11 P Trap Mount Assembly, SE50 2520137 1

12 P Trap Assembly, Complete, SE50 1510187 1

13 Termination Assembly with Connections, SE50 2520236 1

14 Auxiliary Drain Termination 1506925 1

15 Dual Fill Valve, 5.5L -.35 L/Min 1704234 1

16 Float Chamber Assembly, with Board and Connections, SE50 2520239 1

NOTE: Kits include fastening hardware such as nuts and washer assemblies will include hoses

and clmaps for item 16, float board may be ordered seperatly p/n: 1114913

-62-

SETC ELECTRICAL COMPONENTS

SEP ELECTRICAL COMPONENTS

SE50

CABINETRY-EXPLODED VIEW

-63-

SE Spare Parts List - Cabinetry

SETC Electrical Components

Item Description Part No. SE 50

1 Panel Assembly, Electrical Front, Cabinet SE50 2520268 1

2 I/O Board, GS-SE Series 1504760 1

3 SETC Logic Board Assembly 1508357 1

4 Transforner 24/16V, 15VA 1505760 1

5 SETC, Display-Keypad Assembly, SE50 2520274 1

6 Bracket, Assembly, Key Pad Mount, Cabinet, SE50 2520272 1

Not Shown Wire Harness SETC 2520808 1

SEP Electrical Components

Item Description Part No. SE 50

1 Panel Assembly, Electrical Front, Cabinet SE50 2520268 1

2 SEP Display / Keypad Assembly, SE50 2520279 1

3 Bracket, Assembly, Key Pad Mount, Cabinet, SE50 2520272 1

4 SEP Control Board 1508577 1

5 SEP, Led Board Assembly 1508619 1

Not Shown Wire Harness SEP 1508352 1

SE50 Spare Parts List - Cabinetry

Item Description Part No. SE 50

1 Panel Assembly, Electrical Front, Cabinet SE50 2520267 1

2 I/O Board, GS-SE Series 2520267 1

3 SETC Logic Board Assembly 2520270 1

4 Transforner 24/16V, 15VA 2520313 1

5 SETC, Display-Keypad Assembly, SE50 2520271 1

6 Bracket, Assembly, Key Pad Mount, Cabinet, SE50 2520281 1

7 Pipe Plug, 1/2 NPT 1507043 1

Not Shown Fuse For Transformer 1505020 1

THIS PAGE INTENTIONALLY LEFT BLANK

LIMITED WARRANTY

Walter Meier Inc. and/or Walter Meier Ltd. (hereinafter collectively referred to as THE COMPANY),

warrant for a period of two years from date of shipment, that THE COMPANY's manufactured and

assembled products, not otherwise expressly warranted, are free from defects in material and

workmanship. No warranty is made against corrosion, deterioration, or suitability of substituted materials

used as a result of compliance with government regulations.

THE COMPANY's obligations and liabilities under this warranty are limited to furnishing replacement

parts to the customer, F.O.B. THE COMPANY's factory, providing the defective part(s) is returned freight

prepaid by the customer. Parts used for repairs are warranted for the balance of the term of the warranty

on the original humidifier or 90 days, whichever is longer.

The warranties set forth herein are in lieu of all other warranties expressed or implied by law. No

liability whatsoever shall be attached to THE COMPANY until said products have been paid for in full and

then said liability shall be limited to the original purchase price for the product. Any further warranty must

be in writing, signed by an officer of THE COMPANY.

THE COMPANY's limited warranty on accessories, not of Walter Meier’s manufacture, such as

controls, humidistats, pumps, etc. is limited to the warranty of the original equipment manufacturer from

date of original shipment of humidifier.

THE COMPANY makes no warranty and assumes no liability unless the equipment is installed in

strict accordance with a copy of the catalog and installation manual in effect at the date of purchase and

by a contractor approved by THE COMPANY to install such equipment.

THE COMPANY makes no warranty and assumes no liability whatsoever for consequential damage

or damage resulting directly from misapplication, incorrect sizing or lack of proper MAINTENANCE of the

equipment.

THE COMPANY retains the right to change the design, specification and performance criteria of its

products without notice or obligation.

E65185

PRINTED IN CANADA

Walter Meier (Climate USA) Inc.

826 Proctor Avenue, Ogdensburg, New York 13669

Walter Meier (Climate Canada) Ltd.

2740 Fenton Road, Ottawa, Ontario K1T3T7

Tel: 866 NORTEC 1 Fax: 613 822 7964

northamerica.climate@waltermeier.com www.humidity.com

P SETC Nortec Owners Manual

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