Nortec SETC 50, SETC 250, SETC 100, SETC 175, SETC 375 Installation And Operation Manual

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Nortec

SE-Series

Installation and

Operation Manual

Includes installation, operation,

maintenance, and troubleshooting

information for your indoor

Nortec SETC B+ and Nortec SEP

steam exchange humidifier

2552940-D | 23/11/2018

Thank you for choosing Condair.

SERIAL #

MODEL #

INSTALLATION DATE (MM/DD/YYYY)

Proprietary Notice

This document and the information disclosed herein are proprietary data of Condair LTD. Neither this document nor the information contained herein shall be reproduced used, or disclosed to others without the written authorization of Condair LTD., except to the extent required for installation or maintenance of recipient’s equipment. All references to the Condair name should be taken as referring to Condair LTD.

Liability Notice

Condair does not accept any liability for installations of humidity equipment installed by unqualified personnel or the use of parts/components/equipment that are not authorized or approved by Condair.

Contents

Introduction

Operation

2 Receiving and Unpacking 3 Humidifier Components 5 Nortec SETC/P Models 6 Options and Accessories

Installation

10 Typical Humidifier Installation 11 Location 12 Mounting 14 Plumbing 15 Boiler Steam and Boiler

Condensate Return

17 Steam Lines and Condensate

Returns

22 Electrical

44 Nortec SETC LED Status Lights

44 Nortec SEP LED Status Lights 45 How the Humidifier Works

49 Nortec SETC Humidifier Configuration

60 Nortec SEP Humidifier Configuration

Maintenance and Servicing

64 Required Maintenance 65 Maintenance Schedule 69 Maintenance Shutdown and

Extended Shutdown

70 Maintenance Checklist

Troubleshooting

73 General Troubleshooting

23 External Controls

32 Options and Accessories

Start Up

34 Installation Check 35 Nortec SETC User Interface 36 Start Up Procedure 37 Status Screens

39 Digital Controls

41 Start Up Checklists

76 Nortec SETC Warnings and Faults

82 SEP Faults 83 Wiring Diagrams

85 96

Spare Parts Warranty

1 | Introduction

Introduction

CAUTION: Servicing

 Disconnect main power before any servicing.  Shut off pressurized steam supply and ensure steam pressure is safely relieved

before any servicing of pressurized steam components.

 The electrical compartment contains high voltage components and wiring. Access

should be limited to authorized personnel only.

 During and following operation of the humidifier, the steam and components in

contact with the steam such as the tank, blower pack, steam lines, steam distributors, and condensate lines can become hot and can burn if touched.

 Condair does not accept any liability for installations of humidity equipment

installed by unqualified personnel or the use of parts/components/equipment that are not authorized or approved by Condair.

CAUTION: Electrical

 All electrical work should be done according to local electrical code.  Electrical connection to be performed by a licensed electrician.

CAUTION: Plumbing / Steam Lines

 Plumbing to be performed by a licensed plumber.  Pressurized steam line installation to be performed by a qualified installer.  Drain water from humidifier can be very hot. Do not drain to public sink.  All plumbing and pressurized steam supply line work should be done according to

local plumbing code.

CAUTION: Installation

 Do not mount on hot surfaces  Do not mount in area where freezing can occur  Do not mount on vibrating surface  The Nortec SETC/P produces steam at atmospheric pressure no devices which

could block steam output should be connected to the steam outlet.

 Steam output lines must be installed so that no restriction can produce

backpressure in the humidifier.

 Regardless of selecting On/Off or modulating control method, Condair humidifiers

must have a closed circuit across its On/Off security loop control terminal to operate. Condair highly recommends the use of a high limit humidistat and an air proving switch in series for this function.

 Unit damage caused by water quality outside of the specified ranges is not

covered under warranty.

Introduction | 2

Receiving and Unpacking

Note: A steam valve, actuator, and wye strainer are shipped along with the SETC/P humidifier but in separate small boxes.

1 Check packing slip to ensure ALL material has been delivered. 2 All material shortages are to be reported to Condair within 48 hours from receipt of goods.

Condair assumes no responsibility for any material shortages beyond this period.

3 Inspect shipment for damage and note damages on shipping waybill accordingly. 4 After unpacking, inspect equipment for damage and if damage is found, notify the shipper

promptly.

5 All Condair products are shipped on an FOB factory basis. Any and all damage, breakage

or loss claims are to be made directly to the shipping company.

Before Installation

1 Ensure that available voltage and phase corresponds with humidifier voltage and phase as

indicated on humidifier’s specification label.

2 If steam supply is from a Medium or High Pressure boiler ensure supply steam line includes

a relief valve to prevent supply pressure from exceeding 15 psig.

3 Ensure means for returning boiler steam condensate to boiler at atmospheric pressure are

available.

4 Ensure sufficient clearances will be available as described in Location on page 11. 5 Ensure steam lines can be routed to distributor SAM-e manifold or blower pack as described

in Steam Lines and Condensate Returns on page 17.

6 Report any discrepancy immediately to the site engineer.

Figure 1: Specification Label Location

3 | Introduction

Humidifier Components

Tank

Clean Out

Port

Heat

Exchanger

Gasket

Base

Total Controller

Manual Drain Switch

Float Chamber

Heat Exchangers (Faceplate)

Display and Keypad

Steam Outlet

Transformer

Fill Box

Vacuum Break

Steam Inlet (Boiler Steam)

Control Terminal Strip

On/Off Switch

Remote Relay Board

Driver Board

High Voltage Terminal Block

Actuator

Wye Strainer

Steam Trap

Drain Pump

Mixing Box

Figure 2: Nortec SETC Humidifier Components

CV Valve

Fill Valve

Drain Outlet P Trap

Condensate Drain (Boiler Steam)

Auxiliary Drain Outlet

Introduction | 4

Description of Components

Component

Function of Component

Actuator

Opens and closes the CV valve in proportion to demand for steam.

Auxiliary Drain Outlet

Drains water from tank in case of pump failure. Base

Provides an integrated floor support for the humidifier.

Clean Out Port

Provides access to clean scale from the tank and heat exchanger.

Condensate Drain

Drains condensate formed from boiler steam in the heat exchanger(s)

Control Terminal Strip

Terminal strip for connecting external controls and blower pack to humidifier.

CV Valve

Controls the amount of steam allowed into the heat exchanger which in turn controls the output of the humidifier.

Display and Keypad

User interface for configuring the humidifier.

Drain Outlet

Drain port used for draining water from the humidifier tank.

Drain Pump

Drains water from humidifier.

Driver Board

Provides input and output connections to humidifier components.

Fill Box

Provides an air gap for backflow prevention.

Fill Valve

Controls flow of water into humidifier.

Float Chamber

Measures water level in the humidifier tank.

Gasket

Seals heat exchanger face plate and clean out port cover to tank.

Heat Exchanger(s)

Exchanges energy from boiler steam to the tank water to produce steam for humidification. The faceplate mounts the heat exchanger to the tank.

High Voltage Terminal Block

Primary power connection from remote disconnect to humidifier. Manual Drain Switch

Manually activates pump to drain water from the tank.

Mixing Box

Blends hot tank water with cool fill water to provide drain water cooling.

On/Off Switch

Turns power On/Off to humidifier controller. Note: Turn off humidifier disconnect to shut off primary power to the humidifier.

P Trap

Prevents steam from flowing out the drain outlet.

Remote Relay Board

Provides a terminal strip to dry contacts which open/close to indicate the humidifier is on, humidifying, needs service, or is in a fault condition.

Steam Inlet

Connection for boiler steam, it is connected to the heat exchangers.

Steam Outlet

Connect to steam line with steam hose.

Steam Trap

Drains condensate from the heat exchanger without letting boiler steam escape to drain.

Tank

Holds the water used to generate clean steam for humidification.

Total Controller

Controls all functions of the humidifier’s operation and provides user interface for configuration of the humidifier.

Transformer

Steps primary voltage down to 24 VAC for the controller and internal components such as the fill valve and drain valve.

Vacuum Break

Prevents a siphon from occurring when the drain pump is stopped.

Wye Strainer

Protects CV valve and other system components from dirt and rust in the piping system.

Table 1: Humidifier Components

5 | Introduction

Nortec SETC/P Models

SETC5 0

Note:

SE 750 has

2 steam outlets

SE 525-750

SE 100-175

SE 1050

SE 250-375

The Nortec SETC with its Total Controller and state-of-the-art features and options is the most advanced steam exchange humidifier available. The base model Nortec SEP provides steady and reliable humidification using the same proven heat exchanger technology as the Nortec SETC. The Nortec SETC/P is available in capacities ranging from 50 lb/hr (23 kg/hr) to 1050 lb/hr (475 kg/hr). Nortec SETC/P humidifiers are packaged in five different cabinets depending on their capacity. Figure 3: Nortec SETC/P Models shows the configuration and relative size of the five different cabinets. Table 3 provides specifications for the Nortec SETC/P product line.

The Nortec SE 50, 100, 175, 250, and 375 all have a single heat exchanger. The Nortec SE 525 and 750 have two heat exchangers. The Nortec SE 1050 has three heat exchangers. All models have a single pressurized steam inlet and condensate drain with internal manifold connecting separate heat exchangers if they are present.

Figure 3: Nortec SETC/P Models

Introduction | 6

Outdoor Model (Nortec SETC Only)

Option / Accessory

Used For

Freeze Protection Package (Nortec SETC Only)

Emptying the tank in case of fault or power failure to prevent freezing. (Factory installed)

Floor Stand

Supporting the humidifier 27 inches above the floor (height can be reduced by cutting legs of floor stand). (field assembled)

Ceiling Mounting Kit (Nortec SE50 Only)

Providing a drain pan and support brackets for mounting an Nortec SE50 unit from the ceiling.

Steam Distributors

Adding steam into air ducts

Remote Blower Pack

Adding steam into a space remote from the humidifier.

SAM-e Steam Distribution Manifold

Adding steam into air ducts where short absorption is required.

Digital or Analog Control Humidistats

Controlling the output of the humidifier based on sensed RH (can be mounted in the space being humidified or in the duct).

Digital RH Transducers

Communicating RH in a space or duct to the humidifier

Digital or Analog High Limit Humidistats

Preventing over humidification in a duct by shutting down or throttling down the humidifier when duct RH gets high.

Air Proving Switches

Insuring humidification only occurs when air is moving in a duct.

Condair LINKS 2 (Nortec SETC Only)

Connecting the humidifier to a building management interface. hardware allows control of the humidifier via BACnet, Lonworks, Johnson N2, or Modbus.

Condair OnLine (Nortec SETC Only)

User and factory monitoring and configuration of the humidifier via the internet.

The outdoor model of the Nortec SETC provides a weatherproof enclosure that allows the Nortec SETC to be installed on rooftops in moderately cool climates. Refer to the Nortec SETC installation manual that is provided with the outdoor model to insure proper installation.

Options and Accessories

Condair provides a complete line of options and accessories for every humidification application. The following options and accessories are available and may have been delivered with your Nortec SETC/P humidifier. Refer to the installation instructions that came with the accessories for their proper installation and operation.

Table 2: Options and Accessories

9 | Installation

Nortec Model

SETC

Part No

SEP

Part No.

Valve

CV Valve,

Steam

Inlet, Wye Port (NPT)

Condensate Port

(NPT)

Net/Full

Weight

lb (kg)

Required

fill line

flow

gal (l)

/min

Required

Drain

capacity

gal (l)

/min

Electrical

2552765

2520383

2.8

1/2

3/4

125/180

(57/82)

2.6 (10)

5.2 (20)

Voltage

110-120

100

2550073

2525132

5.5

3/4

267/423

Phase

175

2550074

2525133

10 1 3/4

(121/192)

250

2550075

2525134

12 1 3/4

355/599

Amps

(161/272)

1.25 A

375

2550076

2525135

1 1/4

3/4

Power

525

2550077

2553312

1 1/2

529/992

0.15 KW

750

2550078

2553313

40 2 1

(240/450)

4.5 (17)

8 (29)

Max

1050

2550080

2525139

77 2, 2 1/2,

2 1/2

1 1/4

703/1384 (318/628)

Disconnect

15 A

Nortec Model

*Supply

Steam

Pressure

(psig)

*Max Output lb/hr (kg/hr)

Approximate Boiler Steam Consumption

lb/hr (kg/hr)

**Water

Consumption

gal (l) /hr

**Drain Volume

gal (l) /hr

13 (6)

15 (7)

2.3 (9)

0.8 (3)

32 (14)

36 (16)

5.7 (21)

1.9 (7)

50 (23)

58 (26)

9.0 (34)

3.0 (11)

100

26 (12)

30 (14)

4.7 (18)

1.6 (6)

63 (29)

72 (33)

11.3 (43)

3.8 (14)

100 (45)

115 (52)

18.0 (68)

6.0 (23)

175

46 (21)

52 (24)

8.2 (31)

2.7 (10)

110 (50)

127 (58)

19.8 (75)

6.6 (25)

175 (80)

201 (91)

31.5 (119)

10.5 (40)

250

65 (30)

75 (34)

11.7 (44)

3.9 (15)

158 (72)

181 (82)

28.3 (107)

9.4 (36)

250 (114)

288 (131)

44.9 (170)

15.0 (57)

375

98 (44)

112 (51)

17.5 (66)

5.8 (22)

236 (107)

272 (123)

42.5 (161)

14.2 (54)

375 (170)

431 (196)

67.4 (255)

22.5 (85)

525

137 (62)

157 (71)

24.5 (93)

8.2 (31)

331 (150)

380 (173)

59.5 (225)

19.8 (75)

525 (239)

604 (274)

94.4 (357)

31.5 (119)

750

195 (89)

224 (102)

35.1 (133)

11.7 (44)

473 (215)

543 (247)

84.9 (321)

28.3 (107)

750 (341)

863 (392)

134.8 (510)

44.9 (170)

1050

273 (124)

314 (143)

49.1 (186)

16.4 (62)

662 (301)

761 (346)

118.9 (450)

39.6 (150)

1050 (477)

1208 (549)

188.7 (714)

62.9 (238)

Table 4: Nortec SETC/P Capacities and Water Consumption

Table 3: Nortec SETC/P Specifications

* Supply steam pressure must be present at the CV valve to achieve rated output

** At maximum output , 25% blow down, and with drain water cooling activated

Installation | 8

Nortec

9 | Installation

Installation

10 Typical Humidifier Installation 11 Location 12 Mounting on Optional Stand 13 Ceiling Mounting (Nortec SE50 Only) 14 Plumbing

15 Boiler Steam and Boiler Condensate

Return

Steam Lines and Condensate Returns 22 Electrical 23 External Controls

23 Control Wiring

23 Control Location 24 On/Off Control Wiring 25 Modulating Control Wiring

27 Transducer Control Wiring

28 Optional Outdoor Temperature Reset 29 CV Valve Actuator Wiring 30 Remote Relay Board Wiring 31 Staged Modulation Wiring (Nortec SETC Only) 32 Options and Accessories

32 Remote Blower Pack

Installation | 10

Ground

Typical Humidifier Installation

Location

Mounting

Pg 11

Steam

Distribution

Pg 17

1 ft (30 cm)

Plumbing

Pg 14

Boiler Steam Pg 15

Controls

Pg 23

Electrical

Pg 22

Modulation

Controls

2 in.

(5 cm)

min.

1ft (30 cm)

On/Off

Controls

30 in.

(76 cm)

Min.

SE 1050

Figure 5: Typical Humidifier Installation

SAM-e Distribution Manifold

36 in. (91 cm)

Min. Top Clearance

(0 in SE 50)

30 in.

(76 cm)

Min.

123- Ctrl Ground 45-

78-

9- Ground 1011-

12-

E X T T

24 VAC On/Off Loop

Control Signal Limit Signal

5 VDC

Ground Tank Blow Down

Actuator Actuator

0-10 VDC Out

Side

Clearance

Condensate return to boiler

Dedicated

Circuit Breaker

or Disconnect

30 in.

(76 cm)

Min.

Front

Clearance

Pressurized steam supply

Water supply 30-80 psig

Air gap

Tank drain

SETC/P

EXT

11 | Installation

Location

As Close as

Possible to Steam

Distributor

30 in.

(76 cm)

Min.

SE 1050

only

Mount

Humidifier

5-95%

30 in.

(76 cm)

Min. Side

Clearance

Condensate drain

line must be

sloped down, do

not use to lift

condensate

30 in.

(76 cm)

Min. Front Clearance

36 in. (91 cm) Min.

Top Clearance

(0 in. for SE50 only)

Note:. Condensate drain line must be sloped downward to boiler condensate return. Use pump (by others) or stand (optional) if necessary.

The Nortec SE series humidifiers are designed to be either floor mounted or stand mounted (stand optional). Nortec SE 50 models can also be ceiling mounted with the optional ceiling installation kit, part number 2520345.

 Install only in areas with ambient temperature 41-104 °F (5 – 40 °C) relative humidity 5 -

95% (non condensing).

 Ensure mounting surface is strong enough to support the full weight of the humidifier and

accessories (see Table 3: Nortec SETC/P Specifications).

 Install in location where electrical power, boiler steam, and drain can be connected to the

humidifier.

 When possible install below the steam distributor. If mounted above the steam distributor

take care to provide proper steam line routing and proper condensate traps.

 DO NOT locate the humidifier any further then absolutely necessary from the steam

distributor location as net output will be reduced as a result of heat loss through the steam line.

 Condensate drain is located close to the bottom of the humidifier. Locate the unit so that

condensate line slopes down to boiler or use pump (by others) to lift to boiler. Use stand if necessary.

 Avoid mounting humidifier on combustible surfaces including (but not limited to) carpet, tile,

or certain insulating materials.

 Clearance dimensions shown are for reference only and are the minimum required for

maintenance of the humidifier. Consult local and national codes before final location and installation. Condair does not accept responsibility for installation code violations.

Figure 6: Installation Location / Clearance

Installation | 12

Mounting on Optional Stand

Fasten Nortec SE humidifier

to stand with bolts, lock

washers, and nuts provided.

Tighten

to 200 in-lb (22.6 Nm).

Note: Center support only

present on Nortec SE 525 and larger.

Secure stand to floor four places. (hardware by others)

Note: The humidifier must be secured to the stand (hardware provided) and the stand must be secured to the floor (hardware by others).

The optional Nortec SE floor stand positions the Nortec SE humidifier at a convenient working height and provides additional clearances for sloping drains. The stand must be assembled at site.

 Assemble the stand according to the instructions that are provided with it.  Ensure the stand and humidifier are installed on a level surface  Permanently secure the stand to the floor via the holes in the leg support plates following

any local codes or regulations.

Mount stand on level surface

Ensure humidifier is Level

Figure 7: Mounting on Optional Stand

13 | Installation

Note:. The Nortec SE50 requires regular maintenance including removal of scale from the heat exchanger and tank. Make sure it is installed in a location where

the maintenance can be performed.

Ceiling Mounting (Nortec SE50 Only)

12.8 in.

Anchor 3/8 in (M10)

support rods to ceiling

(by others)

Support rods and hardware

(by others) must not extend

below support bracket flange.

Figure 8: Ceiling Mounting the Nortec SE50

(32.6 cm)

Sloped drain 1/2 in. pipe (by others)

Condair offers an optional ceiling mounting kit (part number 2520345) which allows the Nortec SE50 to be ceiling mounted with zero clearance to the ceiling. Follow the following guidelines for installation.

 Follow the instructions provided with the ceiling mounting kit.  Install in a location where regular maintenance can be performed. Provide clearance as

 The Nortec SE50 weighs 180 lb (82 kg) when filled with water and without any

 The humidifier cannot be used as a structural member. All piping connected to the unit

 A drain line emptying into an open drain must be connected to the ceiling kit drain pan.

shown in Figure 6: Installation Location / Clearance.

accessories or piping. It is the installer’s responsibility to calculate the total weight which must be supported, to ensure the ceiling structure is adequate, and to install support rods and to connect drain pan per local codes and regulations.

must be supported independently.

Condair recommends a 1/2 in. pipe with sufficient slope to ensure any water collected in the pan will drain from it.

Installation | 14

Plumbing

Note:

 Drain Water is very hot, do not use plastic pipe for drain or condensate lines, do not

drain to public sink. Route to floor drain or equivalent.

 Supply cold potable water, deionized water or reverse osmosis water at 30 - 80 PSIG.

Hardness 5-7 grain or 90 – 120 mg/l (as Ca

as CaCO3) Total Dissolved Solvents (TDS) 0.5-3 mg/l or Conductivity 1 to 70 mho/cm Chlorides 0-25 ppm PH 7.2-8.5 Alkalinity 30-130 mg/l (as CaCO3)

0.75 in. (19 mm). OD

un-threaded drain outlet

Connect with hose cuff

and hose clamps.

*Pipe, unions, and water shut-off valve not supplied by Condair.

 All water supply and drain line connections must be installed in accordance with local

plumbing codes.

1/2 in. NPT Use union to connect supply pipe to unit.

Always install a water shut-off valve.

Air gap required. 2 1/2 in. to 1 1/4 in. copper reducer is ideal. Hose/line must not touch the bottom of the funnel.

Min. 1 1/4 in. OD drain line. Slope down. Increase size if combining multiple drains.

Axillary drain, 1/2 in. female NPT For draining tank without pump. Leave

valve closed except if freeze protection is installed.

Figure 9: Water Supply and Drain Connection

 See Table 3 and Table 4 on page 7 for supply water flow requirements.  Install water shut off valve and union before humidifier to facilitate servicing.  Insure drain line is adequately sized to provide free and easy draining and that an air gap is

installed as shown. See Table 3 and Table 4 on page 7 for flow requirements.

 Auxiliary drain connection with manual shut off valve is recommended for all units. Valve to

be left closed on units without freeze protection option installed. Valve to be left open on units with freeze protection option installed except during servicing.

 High hardness or silica content supply water may require increased maintenance.  Unit damage caused by water quality outside of the specified ranges is not covered under

warranty.

15 | Installation

6 in.

(15 cm)

Max

Boiler steam supply

line. Max 15 psi, Min 5 psi

measured at CV Valve

Boiler steam

Actuator

inlet port location on Nortec SE 1050

CV Valve (see table 3)

Pressure

gauge (optional)

F&T Trap

Wye Strainer

Isolation Valve

Boiler steam inlet port

(see table 3)

Condensate Drain Port (see table 3)

Condensate drain line.

Gravity feed to boiler.

Use pump if condensate

must be lifted.

Boiler Steam and Boiler Condensate Return

Note:.

 Pressurized steam line installation to be performed by a qualified installer.  Damage to Nortec SE heat exchanger will occur if it is exposed to pressure above

20 psi.. A safety relief valve must be installed to prevent the Nortec SE from being exposed to pressure in excess of 15 psi when the Nortec SE is connected to a medium or high pressure boiler via a pressure reducing valve.

 The steam supply line must be designed to provide design pressure at the CV valve

when there is 100 % demand (CV valve completely open). Pressure losses in the steam supply line will reduce Nortec SE output.

 Condensate must be drained to a non-pressurized boiler condensate return line.

Note: Condair supplies CV valve,

actuator and wye strainer. All other components and fittings by others.

Not pressurized

condensate header

(slope down)

Pressurized condensate header

Figure 10: Nortec SE Boiler Steam and Condensate Connection

Installation | 16

Condair supplies a CV valve, actuator and wye strainer with each Nortec SE humidifier. The port

Caution: Condensate leaves the steam traps inside the Nortec SE under slight pressure. Steam flash could occur in the condensate drain line.

sizes of the CV valve, boiler steam inlet port, and condensate drain port are given in Table 3: Nortec SETC/P Specifications on page 7. Follow the following guidelines for installation.

 All steam line connections must be installed in accordance with local codes.  Install the CV valve actuator following the procedure in Figure 11: CV Valve Actuator

Installation after the CV valve is installed on the steam line. Wire the actuator as described in CV Valve Actuator Wiring on page 29.

 Boiler steam supply line design is the responsibility of the installer. The boiler steam supply

line must be designed so that that design pressure is present at the CV valve when the CV valve is completely open (100% demand). The diameter of the supply line up to the wye strainer may have to be oversized to insure proper steam pressure.

 The Nortec SE will operate on supply steam pressures between 5 and 15 psi measured at

the CV valve. Lower steam supply pressures will result in lower output. See Table 4: Nortec SETC/P Capacities and Water Consumption on page 7 for capacities at different supply pressures.

 If condensate cannot be gravity fed to the boiler then a pump must be used to lift the

condensate. See Spirax Sarco (www.spiraxsarco.com) and others for pumps and additional information on condensate management.

 The boiler steam and condensate connections are independent. Boiler steam condensate

should be returned to the boiler and should not be mixed with water from the tank drain.

 The steam supply pressure can be entered into the Nortec SETC control software to provide

display of unit output. See Pressure Based on page 56.

Install jam nut

and lock washer

Turn stem extension until holes

line up

1/2 in. (1.2 cm)

CV Valve

Install stem

extension

min.

Figure 11: CV Valve Actuator Installation

Insert connecting pin

Actuator

Raise valve stem to full up

2 turns then push in and 1/8 turn to lock

Tighten jam nut against stem extension

Install and tighten mounting nut

17 | Installation

eam

Dire

ction

Steam Line

Material

Lb/hr (kg/hr)

Steam Line Length

Steam Line Description

Copper Tube

0-100 (0-45)

0-90

0-27

1 1/2 in. MED-L Tubing (1.625 in. OD)

101-250 (46-113)

0-180

0-54

3 in. MED-L Tubing (3.125 in. OD)

251-650 (114-295)

0-260

0-79

**4 in. MED-L Tubing (4.125 in. OD)

*Stainless Steel

Tube

0-100 (0-45)

0-90

0-27

1.75 inch Tube x 0.065 inch thick wall

101-250 (46-113)

0-180

0-54

3 inch Tube x 0.065 inch thick wall

251-650 (114-295)

0-260

0-79

**4 inch Tube x 0.065 inch thick wall

Condair Hose

31-100 (14-45)**

<15

<4.5

***Part Number 1328820 (1 3/4”)

10 Degrees

2 in. (5 cm)

1 ft (30 cm)

MAIN RULES FOR ATMOSPHERIC STEAM LINES

 Slope the steam lines.  Trap condensate (Use full size ‘T’ for Traps).  Steam lines must not have any restrictions which could cause back pressure.  Insulate with 1.0 in. (2.5 cm) pipe insulation.  Follow recommended materials, size and length see tables.

Steam Hose Odour: Condair hose may generate a slight odour during initial use. This odour is temporary and will disappear after a short period of time.

Steam Lines and Condensate Returns

Use Appropriate Slope Insulate Pipe

2 Degrees

0.5 in. (12 mm)

1ft (30 cm)

Figure 12: Main Steam Line Requirements

1 in. (2.5 cm) pipe

insulation

Note: * Use only stainless steel tube for reverse osmosis and deionized water applications.

** Use 2 x 4 in. steam lines for steam capacities higher than 750 lb/hr (307 kg/hr)

*** Use one steam hose per 100 lb/hr (45 kg/hr) of output.

Table 5: Recommended Steam Line Material

Installation | 18

4 8 (2.4) 4 (

Figure

1.2) 15 (4.5)

1.6

13: Condensate Traps

Table 6: Maximum Recommended Length of Steam Line

Note: Condensate should not be routed to a sink used frequently by personnel. Route to a floor drain or equivalent. Condensate normally cools in traps but is still hot. A SAM-e or larger steam line generates more condensate and water may not cool in the trap. A drain

water cooler option may be installed if required by code.

as steam line

Unit Size

Steam Output

lb/hr (kg/hr)

Steam Outlet and Line Size

copper (SST)

Maximum

Length

ft (m)

Possible Loss

lb/hr/ft (kg/hr/m)

Possible Loss at

Max. Length

lb/hr (kg/hr)

(23)

1 1/2 (1 3/4)

37 (11)

0.11 (0.16)

4 (2)

100

(45)

1 1/2 (1 3/4)

90 (27)

0.11 (0.16)

10 (4.5)

175

(80)

3 (3)

90 (27)

0.16 (0.24)

14 (6.5)

250

(114)

3 (3)

180 (55)

0.16 (0.24)

28 (13)

375

(170)

4 (4)

180 (55)

0.22 (0.33)

39 (18)

525

(239)

4 (4)

220 (67)

0.22 (0.33)

48 (22)

750

(341)

2X 4 (4)

260 (79)

0.44 (0.66)

114 (52)

1050

(477)

2X 4 (4)

260 (79)

0.44 (0.66)

114 (52)

Tube Diameter

in.

90 Degree

Elbow ft (m)

45 Degree Elbow

ft (m)

Side Outlet Tee

ft (m)

Gate Valve

ft (m)

Control Valve

ft (m)

1 1/2 or 1 3/4

3.5 (1)

1.75 (0.5)

7 (2.1)

0.8 (2.4)

34 (10)

5 (1.5)

2.5 (0.75)

11 (3.3)

1.1 (3.1)

54 (16)

8 (2.4)

4 (1.2)

15 (4.5)

1.6 (0.5)

80 (24)

NOTE:

12 in. (30 cm)

min drop to

top of ‘P’ Trap

plus duct

static pressure

See Table 7 for equivalent length of common fittings.

Table 7: Equivalent Length of Some Common Fittings

Tee is same size

P Trap

min 8 in.

(20 cm)

Use a full size tee, not a 90 degree elbow for vertical to horizontal transitions.

‘P’ Traps Use:

Condair 0.375 in condensate hose .

1/4 in Med-L copper tubing, or

0.375 in stainless steel tubing

Condensate drains must be sloped down. Route to humidifier fill cup if possible.

Possible Loss at

Max. length

lb/hr

(kg/hr)

Globe Valve

ft (m)

19 | Installation

Calculated absorption

distance to any obstruction

or 8-10 ft (2.4 - 3 m)

if unknown

2 x duct

height min.

2/3 Duct height

12 in.

(30 cm)

min.

Mount distributor

to side of duct

Figure 14: Distributor Location in Duct

Note:

Refer to distributor or SAM-e installation manuals for detailed installation instructions.

Insulated copper

steam line. Support

so weight is not on

steam outlet.

1 ft (30 cm) min. before

Figure 15: SAM-e/Steam Distributor Above Humidifier (Copper Steam Line Shown)

anybend

with clamps

2 in. (5 cm)

min.

Hose cuff

1 ft (30 cm)

Condensate line

‘P’ Trap

To drain

Use steam hose between steam outlet and steam line.

Installation | 20

1 ft (30 cm)

0.5 in. (1.2 cm) min.

1ft (30 cm)

min. before

any bend

Obstruction

1 ft (30 cm) min.

Use full size condensate tee

at low point. Slope lines up

to “T” and immediately after it.

‘P’ Trap

To drain

‘P’ Trap

To drain

Hose will soften over time proper support Is necessary

Min 12 in.

(30 cm)

radius

1 ft (30 cm) min. Before any bend

Support Brackets

‘P’ Trap

To drain

Figure 16: Steam Distributor/SAM-e Below Humidifier (Hose Shown)

Install Condensate Tee Before Distributor

To drain

1 ft (30 cm) min.

‘P’ Trap

Figure 17: Steam Under Obstruction (Copper Steam Line Shown)

21 | Installation

Method for Longer Runs With Limited Vertical Space

1 ft (30 cm) min before turn

Condensate

tee every

15-20 ft

(4.5 - 6 m)

Install condensate tee

before distributor

Condensate

tee at low

points

Individually trap multiple condensate

returns before joining on common line.

1 ft (30 cm)

min.

To Drain

Figure 18: Long Steam Run

Installation | 22

Caution:

 Wiring to be performed by a licensed Electrician.  All SE humidifiers operate on 120 VAC, single phase, 60 HZ power. Refer to

specification label for power requirements.

Electrical

Knockouts provided in top and bottom panels. Install strain relief (by others)

High voltage

terminal block

Note:

1 Dedicated external fused

disconnect must be installed. Fusing must not exceed max circuit protection as indicated

on the specification label.

2 Ensure that adequate power is

available to carry full humidifier amp draw as indicated on the specification label.

3 All wiring to be in accordance

with national and local electrical codes.

Figure 19: Primary Power Connection

Single Phase Supply Ground

Neutral

Nortec SETC / P Primary Power

Dedicated circuit

breaker or fused

disconect.

Ground

L1 Neutral

E I X N

T T

23 | Installation

Figure 20: Control Location

External Controls

Note: Regardless of selecting on/off or modulating control method, Condair humidifiers must have a closed circuit across their on/off security loop control terminal to operate. Condair highly recommends the use of a high limit humidistat and an air proving switch in series for this function.

Caution: Failure to wire the humidifier in accordance with the wiring instructions could cause permanent damage. Such errors will void the warranty.

Control Wiring

Controls are available from Condair as accessories. If controls were not ordered with humidifier they must be supplied by others. The following information is relevant to all controls, factory supplied or otherwise. For wiring use minimum of 18 AWG and keep as short as possible.

The Nortec SETC humidifier can be operated with two modulating inputs. The Nortec SEP has one modulating input which can be used for a duct high limit or humidity control. Both the Nortec SETC and Nortec SEP can be operated as On/Off. See Control Setting on page 53 for Nortec SETC configuration and On/Off or Modulating Control (J10) on page 61 for Nortec SEP configuration.

Control Location

10 ft min.

Air Proving Switch

1 Air Proving Switch

Duct High

Limit

Humidity Control

(return air duct or in room)

 Locate so that it can sense air flow or lack of it. 2 Duct High Limit

 Nortec SETC can be modulating, On/Off, or a humidity sensor. Nortec SEP can be modulating or On/Off.  Locate at least 10 feet from steam distributor or far enough that under normal conditions

3 Humidity Control

 Nortec SETC can be Modulating, On/Off, or a Humidity Sensor. Nortec SEP can be modulating or On/Off.  Can be located either in return air duct (preferred) or in room being humidified.  Mount in area representative of room humidity (draft, doorways, sunlight, or overhang such

steam is fully absorbed.

as a shelf can affect reading). Avoid placing near discharge diffuser of humidified air.

Installation | 24

On/Off Control Wiring

Connect 24 VAC ,

term inal 1 of hum id ifie r to

term inal 2 of controllers.

Com N/O

1 -

Groun

2 -

VAC

3 -

Common

Digital

Out

Fan

Relay

Fan

Relay

NTC

Sensor

NTC

Sensor

1 -

Groun

2 -

VAC

3 -

Common

Digital

Out

Fan

Relay

Fan

Relay

NTC

Sensor

NTC

Sensor

Humidifier Terminal Strip

Air Proving Switch

Wire to make when

sensing air flow

Air Proving

Switch

Duct High Limit

2548732 - On/Off

Duct Humidistat

Knockouts provided in top and bottom panels. Install strain relief (by others)

Figure 21: On/Off Controls

Duct High Limit

2548732 - On/Off Duct Humidistat

Wire to make on drop in humidity

Humidity Control

2548731 - On/Off

Wall Humidistat

Note: 1 Humidifier will run when circuit between

terminal 1 and 2 on humidifier is closed.

Terminal 1 is 24VAC Hot, turn unit off to avoid shorting while wiring.

Digital Humidistats require 24 VAC power from terminals 1 and 3 of humidifier.

Humidity Control can be wall mounted as shown or return air duct mounted.

Humidity Control

2548731 - On/Off Wall Humidistat or,

2548732 - On/Off Duct Humidistat

E S

X E

1- 24 VAC 2 - On/Off Loop 3 - Ground 4 - Control Signal

5 - Limit Signal (SETC only) 6 - 5 VDC 7 - Ground 8 - Full Tank Blow Down 9 - Ground 10 - Actuator power 11 - Actuator power 12 - 0-10 VDC Out

Figure 22: Digital On/Off

25 | Installation

Modulating Control Wiring

1 - Ground 2 - 24 VAC

6 - Analog

Out

7 - Analog

8 - Temperature

1 - Ground

2 - 24 VAC

6 - Analog

Out

8 - Temperature

Air Proving

Switch

Humidifier Terminal Strip

2520266 - Digital Duct Humidistat

Package

High Limit Humidistat

Note: 1

Install On/Off controls or jumper between

terminal 1 and 2 of humidifier in order to run.

Terminal 1 is 24 VAC Hot, turn unit off to avoid shorting while wiring.

High Limit Humidistat must be duct mounted. It can be On/Off or modulating.

Control Humidistat can be mounted in space or in return air duct and can be On/Off or modulating.

The Nortec SEP can only accept one modulating signal.

Knockouts provided in top and bottom panels. Install strain relief (by others)

Figure 23: Modulating Controls

1510142 - Digital Wall Humidistat

Control Humidistat

Analog Out - 3

24 VAC - 2 Ground - 1

Connect 24 VAC, terminal 1 of

Nortec SETC/P to terminal

2 of controllers.

Figure 24: Digital Modulating Humidistats

Insert On/Off

controls or jumper

between 1 and 2

X T E

1- 24 VAC 2 - On/Off Loop

3 - Ground 4 - Control Signal

5 - Limit Signal (SETC only) 6 - 5 VDC

7 - Ground 8 - Full Tank Blow Down 9 - Ground 10 - Actuator power 11 - Actuator power 12 - 0-10 VDC Out

Installation | 26

1 - Ground 2 - 24 VAC

6 - Analog

Out

7 - Analog

8 - Temperature

1 - Ground 2 - 24 VAC

6 - Analog

Out

Connect 24 VAC, terminal

1 of SETC/P to terminal

2 of controllers.

1- 24 VAC 2 - On/Off Loop 3 - Ground

- Control Signal

- Limit Signal (SETC only)

- 5 VDC

- Ground

- Full Tank Blow Down 9 - Ground 10 - Actuator power 11 - Actuator power 12 - 0-10 VDC Out

Air Proving

Switch

Duct High

Limit

2520261 - Digital Wall W/O Sensor

1509858 - Wall

Sensor

Humidifier Terminal Strip

2520261 - Digital Wall W/O Sensor

1509858 - Wall Sensor

Wire wall sensor to digital display as shown

below, wire digital display to humidifier as shown

for 1510142 - Digital Wall Humidistat.

Knockouts provided in top and bottom panels.

Install strain relief (by others)

Figure 25: Digital Wall Humidistat – Remote Wall Sensor

2520261 - Digital Wall W/O Sensor

1509858 - Wall

Sensor

Figure 26: Remote Wall Sensor Wiring

27 | Installation

1 - Ground 2 - 24 VAC 3 - Analog

Out

Transducer Control Wiring (Nortec SETC Only)

Connect 24 VAC ,

terminal 1 of SETC to

terminal 2 of controllers

1 - Ground 2 - 24 VAC

6 - Analog

Out

Figure 27: Transducers

1509857 - 2-10V Duct Humidity

Humidifier Terminal Strip

Transducer

Air Proving Switch

1509858 - 2-10V Wall Humidity

Figure 28: Digital

Duct High Limit 1509857 - 2-10V Duct Humidity Transducer

Note: 1

Knockouts provided in top and bottom panels. Install strain relief (by others)

Install On/Off controls or jumper between terminal 1 and 2 of humidifier .

Terminal 1 is 24 VAC Hot, turn unit off to avoid shorting while wiring.

Duct High limit can be duct humidity transducer as shown or duct On/Off

humidistat.

Humidity Control can be wall humidity transducer as shown, duct humidity transducer, or On/Off humidistat.

Transducer

E X T

Humidity Control 1509858 - 2-10V Wall

Humidity Transducer

Insert On/Off

controls or jumper

between 1 and 2

1- 24 VAC 2 - On/Off Loop 3 - Ground 4

- Control Signal

- Limit Signal (SETC only) 6 - 5 VDC 7

- Ground 8

- Full Tank Blow Down 9 - Ground

10 - Actuator power 11 - Actuator power 12 - 0-10 VDC Out

Installation | 28

Optional Outdoor Temperature Reset

Connect 24 VAC, terminal

1 of humidifier to terminal

2 of controllers.

1 - Ground 2 - 24 VAC 3 - Common 4 - Digital

Out

5 - Fan

Relay

6 - Fan

Relay

7 - NTC

Sensor

8 - NTC

Sensor

1 - 24 VAC 2 - Temperature

Figure 29: Outdoor Temperature Reset

 Each digital controller is equipped with an integrated reset function that can reduce the

setpoint during cold weather operation. This will prevent condensation on windows and building structures. The above graph illustrates how the setpoint reset feature operates.

 On modulating humidistats this feature is enabled by removing the jumper from terminals 8

and 1 on the humidistat and wiring the outdoor temperature sensor to these terminals. On On/Off humidistats this feature must be activated with the humidistat’s keypad.

 When the outdoor temperature setback feature is in effect, the humidistat will normally

display the calculated setpoint limit based on the outdoor air temperature. A snowflake will also be displayed to indicate cold weather operation. When any key on the controller is pressed, the LCD screen will display the customer specified setpoint for a short duration.

2548731 - On/Off Wall Humidistat or,

2548732 - On/Off Duct Humidistat

2520263 - Outdoor Temperature

Sensor

E S X

Note: 1 The Temperature sensor is

intended for duct mounting.

2 Locate the temperature sensor

near the fresh air intake. This will ensure accurate representation of the outdoor air temperature.

Figure 30: Outdoor Temperature Sensor (Modulating Control)

Insert Other

On/Off

controls

in series

1- 24 VAC 2 - On/Off Loop

3 - Ground 4 - Control Signal 5 - Limit Signal (SETC only)

6 - 5 VDC 7 - Ground 8 - Full Tank Blow Down 9 - Ground 10 - Actuator power 11 - Actuator power

12 - 0-10 VDC Out

29 | Installation

2520263 - Outdoor Temperature

Connect 24 VAC, terminal

1 of SE to terminal

2 of controllers.

1 - 24 VAC 2 - Temperature

1 - Ground 2 - 24 VAC 6 - Analog

Out

8 - Temperature

Sensor

1510142 - Digital Wall Humidistat or,

2520266 - Digital Duct Humidistat Package

Note: 1

The Temperature sensor is

intended for duct mounting.

Locate the temperature sensor

near the fresh air intake. This will ensure accurate representation of the outdoor air temperature.

Insert On/Off

controls or jumper

between 1 and 2

E S X E

1- 24 VAC 2 - On/Off Loop 3 - Ground 4 5 6 - 5 VDC 7 8 9 - Ground 10 - Actuator power 11 - Actuator power 12 - 0-10 VDC Out

- Control Signal

- Limit Signal (SETC only)

- Ground

- Full Tank Blow Down

Figure 31: Outdoor Temperature Setback (On/Off Control)

CV Valve Actuator Wiring

Nortec

SE 50 - 750

Actuator

Note: 1 Wire the CV valve actuator

to the humidifier’s low voltage terminal strip.

2 Use minimum of 18 AWG wire

and keep as short as possible.

3 After installation and powering

humidifier verify that travel of actuator at full demand is to the fully open position.

Figure 32: CV Valve Actuator Wiring

Nortec SE 1050 Actuator

Nortec SE 1050 low

voltage terminal strip

Y/Bk

SE 50 - 750 Terminal Strip

9 - Ground

Y/Bk

10 - Actuator 24 VAC 11 - Actuator Ground 12 - 0-10 VDC Out

9 - Ground 10 - Actuator 24 VAC 11 - Actuator Ground 12 - 0-10 VDC Out

Installation | 30

Unit

Steam Service

Remote Relay Board Wiring

COM

Error

The Nortec SETC (not SEP) remote relay board provides the output signal for the CV Valve Actuator and includes 4 relays that can provide remote status indication. The remote relay board is located as shown in Figure 33: Remote Relay Board Wiring. The PCB with the relays includes markings which indicate the function of each terminal on the board. The relays indicate the following status;

1 Unit On – The normally open relay is closed when the humidifier has power and the On/Off

switch is set to on.

2 Steam – The normally open relay is closed when the control board sends a signal to the CV

valve actuator to open the CV valve and steam is being produced.

3 Service – The relay can be wired to open (NC) or close (NO) when a warning is displayed on

the humidifier display and the yellow service LED is illuminated.

4 Error – The relay can be wired to open (NC) or close (NO) when a fault is detected by the

humidifier controls.

Figure 33: Remote Relay Board Wiring

31 | Installation

Staged Modulation Wiring (Nortec SETC Only)

Daisy Chain up to 16

Humidifiers

Slave 1

Slave X

Master

Daisy chain pole 2 and 3 of terminal

J2a-RS485

of the

driver board.

 Connect up to 10 units (equivalent of 10,500 lb/hr (4,770 kg/hr)) using 18-24 AWG multi-

strand, twisted pair, shielded cable.

 Connect humidistats/transducers and On/Off safety loop to master unit only.  See Multi Mode on page 54 and Multi Unit Op. Range on page 56 for software configuration.

Note:

Do not reverse polarity. Do not connect to pole 1 or 4.

Figure 34: Staged Modulation Wiring

Installation | 32

Options and Accessories

Note: For installation of options and accessories follow the instructions that are provided with

them.

Remote Blower Pack

Remote blower packs are available for the Nortec SETC/P for applications where steam for humidification must be introduced directly into the space being humidified. For instructions on installing the remote blower pack refer to the installation instructions supplied with it. The steam line and condensate return instructions provided in this manual are also applicable to remote mounted blower packs.

The blower packs include a safety relay which should be used to prevent the humidifier from operating if the blower packs do not have power. Wire humidifier security loop in series through all blower packs and other On/Off controls.

Drain Water Cooling (External)

Pneumatic and electric drain water coolers are available from Condair for installation outside the humidifier or on condensate drains from steam traps, distributors, and SAM-e headers. If condensate cannot be routed back to the humidifier tank via the humidifier’s fill cup then an external drain water cooler may be required to meet regulations restricting the temperature of hot water that can be fed to drain. The external drain water cooler is only available for field installation.

33 | Start Up

Start Up

34 Installation Check 35 Nortec SETC User Interface

35 Manual Drain Switch

36 Start Up Procedure 37 Status Screens 39 Condair Digital Controls 40 Staged Modulation (Nortec SETC Only) 40

LINKS 2 40 Condair ONLINE 41 Nortec SETC/P Pre-Start Up Checklist 42 Nortec SETC/P Start Up Checklist

Start Up | 34

Installation Check

Before turning on power to the Nortec SE, inspect the installation to insure that it was carried out correctly. Refer to Figure 35: Installation Check, to the Nortec SETC/P Pre-Start Up Checklist on page 41, and to the chapter on Installation that starts on page 9.

2 x duct height

from fan or

On/Off Controls

(Air Proving)

in series between

terminal 1 and 2

Steam Line

- Adequate slope

- No restrictions

- No kinks (hose)

- Condensate traps on long runs

Mounting

- Unit level

- Service clearance

- Properly anchored if on stand

transition

Disconnect

Correct voltage,

amps, phase

Calculated absorption distance

to any obstruction or 8 - 10 ft

P Trap(s) with 12 in . (30 cm) min. drop(s) .

Actuator,

- Opens CV Valve fully at 100% demand

- Closes fully at 0%.

Boiler Condensate

- Gravity fed to boiler

Figure 35: Installation Check

Min 10 ft (3 m)

(2.4 - 3 m) if unknown.

Boiler Steam

- Max 15 psi

- Safety valve if from med. or high press. boiler.

- Design pressure at 100% demand.

Air gap

Spec label

or lift pump

1/2 in line min 30-80 PSI

Not plastic drain, Not to sink.

High Limit

- Wired to terminal 5

- On/Off in series

between terminal

1 and 2

Control

- Wired to terminal 4.

- On/Off in series between terminal 1 and 2.

- In return duct or location which represents humidified space (no drafts, not by door, not

by diffuser).

35 | Start Up

SETC User Interface

Manual drain switch

Figure 37: Manual Drain Switch

Manual Drain Switch

LCD Display and Input Buttons

(Buttons used to navigate . status screens and configure the humidifier, correspond to icons on the display)

Status LEDs

Software Drain Button

(Initiates a software controlled drain)

On/Off Switch

(Turns humidifier On/Off)

Figure 36: Nortec SETC User Interface

The Nortec SETC/P has a manual drain switch that can drain the tank even if software is not functioning. To drain the tank put the switch into the drain position. For normal operation the switch should be in the off position.

Start Up Procedure

Warning: Damaged units or improperly installed units must not be operated. Damaged or improperly installed units may present a danger to persons and property.

Request – xx%

Idle

0 lb/hr

04/30/09 14:25:22

Security loop: Closed

Note: on initial startup with cold water in the Nortec SE’s tank it may take 5 to 15 minutes (depending on unit size) for the Nortec SE to reach a full boil and produce its rated steam.

Start Up | 36

Note:

 Pressing the ESC key on the keypad will interrupt the float and drain test and the

humidifier will go straight to normal operating mode.

 If an error is detected during the self-diagnostic sequence a Fault will be displayed.

See troubleshooting section for information on diagnosing and correcting faults.

 Nortec SEP does not have an LCD display. The information on the Nortec SETC’s

LCD depends on the Nortec SETC’s configuration and actual operating conditions. It may vary from display shown.

1 Examine the humidifier and installation for damage and or improper installation.

2 Open the supply water shut off valve. If the auxiliary drain valve is installed ensure it is

closed.

3 Slowly open boiler steam isolation valve to allow boiler steam into the steam supply line up

to the CV valve.

4 Turn on the main power using the installed disconnect then turn the On/Off switch on the

front of the humidifier to On.

The LCD display will illuminate and the humidifier will perform a self-diagnostic sequence during which the LED’s and internal components will be momentarily activated. The Nortec SE will then begin filling with water. The fill time is between 10 and 30 minutes depending on the size of the unit.

5 Once the water level is close to the top of the tank the LED

lights on the SE’s float chamber will light up and indicate the water level. On start up the Nortec SE will perform a float and drain pump test by first filling until just the green LED is lit and then draining until just the red LED is lit. After the float and drain test the humidifier is in normal operation mode.

6 If On/Off or a control humidistats have been installed check and adjust the control setpoint

on the control and high limit humidistat (see Nortec Digital Controls on page 39). If transducer controls have been installed then adjust the humidity setpoint using the keypad and display (see Transducer Control on page 39)

7 When either the external humidistat or internal controller generate a demand for humidity

higher than 15%, the security loop is closed, and the float chamber indicates the tank is full the SE will transmit a signal to the CV valve to open. Steam will flow into the SE’s heat exchanger(s) and the SE will heat the water in its tank.

37 | Start Up

8 The green humidifying LED on the front of the humidifier will light up and the display will

Request – 100%

Idle 04/30/09 Security loop:

750 lb/hr 14:25:22 Closed

Request – xx%

Idle 04/30/09 Security loop:

0 lb/hr 14:25:22 Closed

CONTROL Man Cap. Demand Limit Output

: 100% : 55% : 80% : 0 lb/hr

CONTROL Man Cap. RH CNT CNT Set-Pt RH Limit LIM Set-Pt Output

: 100% : 55% : 50% : 100% : 70% : 0 lb/hr

HUMIDIFIER

Model Capacity Multimode REG Mode Software Press. In

: SETC 750 : 750 lb/hr : StandAlone : Demand : XVXX : 15 psi

Caution:

 Improper control configuration can result in over humidifying which can result in

damage to property.

 See Advanced Control Configuration if the controls displayed in the control

information screen do not match those connected to the humidifier.

indicated “Humidifying” and the amount of steam being produced (Nortec SETC only).

Status Screens

In addition to the main status screen the Nortec SETC includes several status screens which provide additional information about the humidifier. The additional screens can be reached by pressing the buttons corresponding to the left and right arrow key on the LCD display.

Main Status Screen

This screen reports the current request for humidity, status, output, date and time, and security loop status. If status is not idle or humidifying the left arrow key becomes a “?”. If the button corresponding to the arrow key is pressed the display will give additional information on the status of the humidifier.

Control Information Screen

Output is the lb/hr steam output of the unit. Man Cap is the user configured capacity limitation. Depending on the control configuration the screen also reports the current inputs of channel 1 and 2. If the unit is configured for internal control it also provides the current humidity and setpoints.

Humidifier Information Screen

Model is the humidifier model type. Capacity is maximum output if the unit is supplied 15 psi steam. Multimode indicates if the humidifier is operating as part of a group controlled by a single control signal

REG Mode is the configured control method. Software is the installed software version. Press. In is the boiler steam supply pressure.

Start Up | 38

Analog Output

Output Signal Capacity Total O/P Tank Monitor Quick Warm Press. Base

: X.X VDC : xxx lb/hr : xxx lb/hr : On/Off : On/Off : On/Off

100%

-4 hrs

0 hrs Demand: 45%

TANK STATUS

Fill Valve : ON/OFF Drain Pump : ON/OFF Float Level 5 Run Time : xxx hr Serv. Time : xxx hr Serv Due : xxx hr

SENSOR INPUTS

Sec. Loop : Closed Tank Temp. : Closed

FEATURES LIST

Idle Mode : Idle Drain FTBD : On/Off Time Prop. : On/Off BD Rate : 25% Drain Cool :On/Off/Smart Float Check : On/Off

FEATURES LIST

Idle Mode : Idle Drain FTBD : On/Off Time Prop. : On/Off BD Rate : 25% Drain Cool :On/Off/Smart Float Check : On/Off

Analog Output Information

Output Signal is the signal currently being output to the actuator. Capacity is maximum output based on actual boiler steam press. Total O/P is the current output of the humidifier. Tank Monitor indicates if tank monitoring is On/Off. Quick Warm indicates if Quick Warm is On/Off. Press Base indicates if output is based on actual steam pressure.

Tank Status

Fill Valve indicates if the fill valve is open or closed. Drain pump indicates if the drain is on or off. Float level indicates the current float level. Run Time is total weighted operating hours since last service. Serv Time is the service interval set for the humidifier Serv Due is the time remaining before service is required.

Sensor Inputs

Sec. Loop indicates if the security loop is open or closed. Tank Temp indicates if the tank is cold (open) or hot (closed)..

Features List

Idle Mode indicates what the humidifier is configured to do when there is no demand.

FTBD indicates if full tank blow down is enabled. BD Rate indicates water drained for scale control as % of output

Drain Cool indicates configuration of drain water cooling feature Float Check indicates if the humidifier will perform float checks.

Operational Hours

Total indicates the number of hours the humidifier has been producing steam.

Weighted indicates the total amount of steam the humidifier has produced expressed as number of hours running at 100% output.

Trend Graph

This graph provides a history of the humidifiers output for the past 4 hours. It displays a percentage of full output which corresponds to the demand signal. The current demand signal is displayed at the bottom of the screen.

39 | Start Up

Digital Controls

Condair provides optional On/Off, Modulating Control, or Transducer digital controls. Figure 38 and Figure 39 show the function and meaning of the Digital Control’s display and buttons. All controls are available either wall mounted or with a remote sensor for duct mounting.

Humidity (RH %)

Indicates the

humidistat is on.

A half moon

indicates it is off.

Snowflake indicates the

setpoint is being

overridden by outdoor

temperature.

Power button turns off the humidiistat if

pressed for 2 seconds

Figure 38: Modulating and On/Off Digital Control Operation

Output signal is shown on modulating controller proportional to the demand.

State of On/Off humidistat

Setpoint (RH%)

Option button accesses sensor calibration.

See troubleshooting

Increase / Decrease Setpoint

Modulating Control

The modulating controls use a PI control algorithm to transmit a 0-10V control signal to the humidifier. Adjust the setpoint to the desired setting by using the up/down arrow buttons on the controller.

On/Off Control

The On/Off controls use a PI control algorithm to open and close a relay that opens and closes the humidifier’s On/Off loop. Adjust the setpoint to the desired setting by using the up/down arrow buttons on the controller.

Transducer Control

The transducer controls transmit a 2-10V control signal proportional to the sensed relative humidity to the humidifier. Humidity setpoint is not set at the transducer. The setpoint is set on the Nortec SETC’s display and keypad.

Note: It is possible to field calibrate Condair Digital controls if the displayed humidity is found to

be different than a known trusted source. See Digital Humidistat on page 75 of chapter on Troubleshooting.

Start Up | 40

Humidity (RH %)

Option button accesses

sensor calibration.

See troubleshooting

Adjust calibration

while in calibration

mode

Power button will

display “NO” if an

attempt is made to

turn off the transducer.

Figure 39: Transducer Control Operation

Staged Modulation (Nortec SETC Only)

Start up of each humidifier configured and installed for Staged Modulation is the same as starting up standalone humidifiers with the exception that for the humidifier to fill and produce steam the demand to the master unit must be greater than the Multi Unit Op. Range setting of the unit being started. (Example for a slave unit configured to operate between 20 and 30% the demand to the master must be greater than 22%)

Each unit connected in a staged modulation system will display its demand as a percentage of the range for which it is configured. Example, a slave unit configured to operate between 20 and 30% demand will display a demand of 50% when demand to the master is 25%.

Note: See Multi Mode on page 54 and Multi Unit Op. Range on page 56for software

configuration. See Staged Modulation Wiring on page 31 for control wiring of humidifiers in a Staged Modulation system.

LINKS 2 (Nortec SETC Only)

LINKS 2 is an option that can be integrated with the Nortec SETC. It allows a Building Management System to monitor and / or control the humidifier. For complete information about LINKS 2 and its operation and configuration, go to www.condair.com and look up the LINKS 2 manual.

Condair ONLINE (Nortec SETC Only)

Condair ONLINE is an option that can be integrated with the Nortec SETC. It allows a user to monitor their unit from any computer with an internet connection by logging in to

www.condaironline.com.

It can also be configured to send service reminders and fault warnings when they occur.

41 | Start Up

Nortec SETC/P Pre-Start Up Checklist

Unit Serial #:

Unit

type:

Tag:

Voltage:

ph Steam output: lb/hr

Customer/Job:

Water Quality:

 Potable (0-12 grains/gal, 0-14 ppm Silica, 0-25 ppm Chlorides)  RO  DI 

Address:



Humidifier Mounting: (Clearances around the unit Acceptable Obstruction)

Level  Front/Side Clearance  Anchored (if on stand) 



Steam Line(s):

 Slope up (min 2 in/ft).  Slope down (min 0.500 in/ft)   Diameter / Size Material  Low point condensate traps  No Hose Kinks / Restrictions   Insulated  Type of Insulation

Condensate Line(s):



P Trap min 8 in. (20 cm) plus duct static pressure P Trap min 12 in drop 



Water Line:

 Can provide required flow  Water pressure: 30-80 psig 



Drain Line:

 Air gap within 3 ft of the unit  Diameter / Size  Auxiliary drain connected with shut off valve 



Boiler Steam

 Boiler Pressure psi Pressure to humidifier psi  15 psi relief valve if med/high press boiler   Actuator closes and opens CV valve fully  Design pressure at CV valve   Condensate return Gravity feed or pump 



Wiring:

 Wiring connections and connectors secured yes  no 



Controls:

 Control Location Control to Terminal 4   High Limit Location High Limit to terminal 5 



Power:

 Voltage, amp, fuse per Spec Label: yes  no   Disconnect switch located close to humidifier yes  no 



Inspected by: Date of inspection: / /

Company:

Start Up | 42

Nortec SETC/P Start Up Checklist

 Water supply valve opened

yes 

no 

 Boiler steam isolation valve open

yes 

no 

 Mains disconnect switched on

yes 

no 

 Turn On/Off switch on

yes 

no 

 On/Off Security loop (Terminal 1 and 2) closed.

yes 

no 

 Demand greater than 15%

yes 

no 

Note: 1) It can take 10 to 30 minutes for the tank to fill depending on humidifier size.

2) Once filled it can take 5 to 15 minutes (depending on humidifier size) for a cold tank to come to a full boil.

Unit Serial #:

Unit

type:

Tag:

Voltage:

ph Steam output: lb/hr

Customer/Job:

Address:

Preliminary:



Pre-start-up checklist completed? yes  no 

If no, perform Pre-Start-up Checklist before starting humidifier.

Start-Up Procedure:

The prerequisites for the humidifier activating the CV valve actuator to make steam are as follows:

Controls:



Installed Controls Match Configuration yes  no 

 Control Setpoint: High Limit Setpoint:

 Demand (Modulating Humidistat) yes  no 

 Sensed RH < Setpoint (Transducer) yes  no 



The Humidifier will undergo a self-test when the power is turned on activating the LED’s and other internal components followed by a float test.

If the above listed prerequisites are fulfilled the humidifier will fill the tank, open the CV valve and begin normal operation.

Remarks:

Started by: Date of Start Up: / /

Company:

43 | Operation

Operation

44 Nortec

SETC LED Status Lights 44 Nortec SEP LED Status Lights 45 How the Humidifier Works

45 Steam Generation 46 Drains

46 Steam Distribution

47 49

Selecting an RH Setpoint Nortec SETC Humidifier Configuration

49 Navigating the Nortec SETC Software

49 Main Menu (Nortec SETC Password) 50 Service Level 51 User Defined Settings

53 Control Setting

56 Multi Unit Op. Range 57 RH Settings

59 Diagnostic Menu

Nortec SEP Humidifier Configuration

Operation | 44

Nortec SETC LED Status Lights

The keypad and display panel includes 3 LED’s which provide information about the humidifier’s current status.

Fault LED On

Indicates the controller has detected a

fault condition and stopped humidifier.

Check display for fault information

Service LED On

Indicates that service may be required

or that a warning condition exists.

Check display for warning information

Service LED Blinking

Indicates drain button has been pushed

and unit is draining.

ON LED On

Indicates steam is being produced.

ON LED Blinking

Indicates demand with safety loop open.

Figure 40: Nortec SETC LED Status Lights

Nortec SEP LED Status Lights

DEMAND LED On

Indicates steam is being produced.

DEMAND LED Blinking

Indicates humidifier is in standby waiting

for a demand.

SERVICE LED Flashing

Indicates the controller has detected a

fault. The flash sequence of the LED

indicates which fault has been detected.

FAULT LED On

Indicates the controller has detected a fault condition and stopped humidifier. Read Service LED’s flash sequence to

determine fault detected.

Figure 41: SEP LED Status Lights

DEMAND

SERVICE

FAULT

OFF

DRAIN

45 | Operation

Humidifier Schematic

Heat Exchanger

Steam Line

Steam Distributor

CV Valve Actuator

‘P’ Trap

Tank

Float Chamber

Fill Box

Cooling to Float Chamber

Dual Fill Valve

Boiler Steam

CV Valve

Vacuum Break

Drain Outlet

Steam Trap

‘P’ Trap / Overflow

Condensate Return to

Boiler

Auxiliary Drain

Lower Mixing Box

Drain Pump

How the Humidifier Works

The Nortec SETC/P is an atmospheric steam generator that uses energy from pressurized steam flowing through a heat exchanger submerged in water to generate steam. The Nortec SETC/P is designed for air humidification via steam distributor, blower pack, or steam manifold (Nortec SAM-e).

Steam Generation

 After initial start-up and tank filling the humidifier will sit in standby mode, awaiting a call for

 When a call is received, the humidifier will send a signal to the electric actuator. The

 Energy from the boiler steam is transferred to the fresh water tank through a heat exchanger

Figure 42: Humidifier Schematic

humidity.

actuator will open as required and the flow of boiler steam will begin.

inside of the unit. This causes the water to boil. Full boil from a cold tank can take up to 15 minutes. On Nortec SETC models, the Keepwarm feature can be activated to reduce boil time, see Idle Mode on page 52.

Operation | 46

 Once the humidifier has reached full boil, the humidifier will modulate the actuator,

controlling the flow of steam into the unit. This will allow the unit to reduce its output level as the humidity levels in the space being humidifier are reached.

 During the boiling process minerals are left behind from the water. The unit will occasionally

activate the drain pump to flush out some of the minerals in the water and reduce the concentration in the tank. The fill valve will also be activated periodically to replace water that is boiled off during normal operation.

 When the demand to the unit ceases, the unit will close the steam valve and steam

production will stop. The unit will enter standby mode and await a call for humidity. If Keepwarm is activated (Nortec SETC only), the CV valve will be opened periodically to heat the tank.

Drains

 As steam is produced minerals are left behind in the Nortec SE’s tank. The Nortec SE

performs periodic drains to reduce the amount of minerals that will precipitate as scale.

 In general more frequent drains result in less maintenance. The amount of water drained to

control mineral concentration in the tank can be configured in the Nortec SETC’s software.

 To cool drain water the Nortec SE activates the fill valve whenever the drain pump is activated.

Cool fill water flows down from the fill box and blends with hot tank water in the lower mixing box before being drawn into the drain pump. The drain cooling feature can be deactivated via software (see Drain Cool on page 51).

Steam Distribution

Steam generated by the humidifier may be introduced into the air in several different ways. The most common method for adding the steam into the air is to mount a steam distributor tube in a supply air duct as shown in Figure 42: Humidifier Schematic. For larger ducts or larger loads it is also common to use a steam manifold with a single steam line connection and multiple tubes for distributing the steam, see Figure 43: Nortec SAM-e Manifold. For introducing steam directly into a room, remote mounted blower packs are used see Figure 44: Remote Blower Pack.

Steam Line

The steam line between the tank steam outlet and the distributor may be Condair steam hose, copper pipe, or stainless steel pipe or tube. The Nortec SETC/P is an atmospheric steam generator so it is very important no restrictions are present in the steam line and that the steam line is sized properly to carry the full output capacity of the humidifier. It is also important to minimize the length of steam lines. See Steam Lines and Condensate Returns on page 17 for information on selecting steam lines and maximum recommended lengths.

Whenever steam is distributed condensate is formed in the distribution system and steam distributor, manifold, or blower pack. Insulating steam lines is one important way to reduce the amount of condensate formed. Steam lines must be sloped so that condensate does not collect in the lines and create a restriction to steam flow.

Condensate Return

The condensate must be collected and removed from the system so that it does not build up and leak into the duct (or room if blower pack is used). Condensate must be collected and fed to drain.

47 | Operation

Selecting an RH Setpoint

Note: The job site design may have specified a setpoint chosen specifically for the site. Refer to site documentation and where possible use setpoints specifically determined for the site.

The optimum humidity setpoint depends on the reasons that a space is being humidified. The “ASHRAE Handbook – HVAC Applications” recommends specific design relative humidities for specific applications. See also Condair publication “When You Need Humidity” (Form 124A) for more information on humidity settings.

Health and Comfort - The benefit of humidity is most pronounced for health and comfort in the 40-60% range. A humidity setting of 40-50 % is recommended for this purpose to prevent over humidifying.

Temperature Setback - In cold climates it is often necessary to reduce the humidity level in a space to prevent build up of condensation on the inside of exterior walls, windows, and trim. It is highly recommended that the temperature setback function of the Condair digital controls be used under these conditions to prevent damage from condensation. The digital control with an outdoor temperature sensor installed will automatically setback the humidity setpoint to correspond with outdoor temperature.

Duct High Limit – The duct high limit is intended to prevent saturation and wetting in duct work at high load conditions. Condair recommends a setting of 85% for the duct high limit. It may be necessary to reduce this setting If the duct work is very cold or in contact with exterior cold surfaces.

SAMe Manifold

Insulated copper

steam line. Support

so weight is not on

steam outlet.

Condensate line

‘P’ Trap

Figure 43: Nortec SAM-e Manifold

Operation | 48

Insulate steam lines

Blower Pack Blower Pack

Balance steam

line length to all

blower packs

Figure 44: Remote Blower Pack

Blower pack condensate drain and ‘P’ Trap

Provide 120 V disconnect for

blower packs

power.

Wire bl ower pack safety loop terminals in series with humidifier safety loop.

Condensate to drain

Oversize condensate line to combine multiple condensate returns

49 | Operation

Service Level

45 %

Nortec SETC Humidifier Configuration

Press to go

Press to

?=Press for

Press to go

Press to

down a

go left

information

up a menu

increase/

menu level

/right one

about current

level

decrease

setting and

screen

warning or fault

message

value

go up a

level

Request – 100%

Idle 04/30/09 Security loop :

150 lb/hr 14:25:22 Closed

Set

Main Menu

Service Level

User Defined Settings Control Settings Diagnostics

Request – 100%

Password

0335

Idle

30 lb/hr

04/30/09 14:25:22

Enter Code

Security loop:

Closed

Confirm with Set

Screen Displays

Set P

45%

ESC

S et

Navigating the Nortec SETC Software

The four input buttons below the digital display are used to navigate in the Nortec SETC’s software and to enter values. The function of the four buttons changes depending on what is being displayed on the screen. In all cases 4 icons representing the functions of the buttons are shown at the bottom of the screen.

Screen Displays

Figure 45: Navigating the Nortec SETC Software

Main Menu (Nortec SETC Password)

The menu levels of the Nortec SETC are password protected to prevent configuration changes by unauthorized persons. In order to access the menu level press the button corresponding to the Menu icon and when prompted enter the password 0335.

Enter Password

Press the Menu button from any status screen. Enter the user level code 0335 using the up arrow to change the value of each digit and the right arrow to move to the next digit. Press the Set button.

Main Menu

From here you can access all user configurable settings. Select any sub-menu by using the up/down arrow buttons and pressing Set when the desired one is highlighted. Note: Do not make changes unless you are familiar with the software.

Operation | 50

500 hr

Service Reminder :500

Interrupt Operation

Tank Drain

Interrupt Operation?

(This Operation

Can Take >1 hr)

Tank PreClean

Reset Serv. Reminder

Service Level

Set No Yes Menu

Set

Yes

Set

Yes

Set

Service Level

Service Reminder : 500

Service Reminder

500 hr

500

Tank Drain Tank PreClean Reset Error History Reset Serv. Reminder

Set

Reset Error History

Menu Yes No Set

The selections in the Service Level allow you to reset service reminders and the fault history. Press Set while highlighting Service Level in the Main Menu.

Service Reminder

Sets the maintenance time interval for the humidifier based on run time at 100% output. The controller will display a warning when the time expires. (Default = 500 hr)

Tank Drain

If the yes button is pressed the controller activates the drain pump and empties the tank.

Tank Pre Clean

Preparation for regular maintenance to remove loose scale that may be present in the tank.

Reset Error History

Deletes the list of errors stored in the error history. The Error History is located in the Diagnostics Menu. Resetting the error history is not normally required, but can be done after repairs to remove faults that are no longer needed.

Reset Service Reminder

Resets the service reminder after the humidifier has been serviced.

51 | Operation

Drain Cool : Off

Hour 23

100

User Defined Settings

Set

Drain Cool

Off

Smart

User Defined Settings

Drain Cool : On

BD Rate FTBD FTBD Time FTBD Hours Idle Mode Idle Time Fill Corr Drain Corr Float Ck Date Time Unit Language Contrast Leak Ck

: 25% : Off : Off : 100 : Idle Drain : 72 hr : 100% : 100% : 23:30 : 06/27/09 : 13:22 : lb/hr : English : 10 : Off

Set

Menu Set

Blowdown Rate

25%

BD Rate : 25%

Menu Set

FTBD Time

Hour 23

FTBD Time : Off

Menu Set

FTBD Hours

100

FTBD Hours : 100f

Menu Set

Full Tank Blowdown

Off

FTBD : Off

The selections in User Defined Settings allow you to configure most user configurable features available with the Nortec SETC. Press Set while highlighting User Defined Settings in the Main Menu.

Drain Cool

Selects whether drain water cooling will be performed by adding fill water to drain water. Off = fill valve not activated during drain. On = fill valve activated whenever drain pump is on, Smart = fill valve only activated with drain pump when tank is hot. (Default = Smart)

Blowdown Rate

Sets the amount of water as a

will be drained to control mineral concentration in the tank. (Default – 25%)

Full Tank Blowdown

Sets whether the tank will be periodically flushed to help flush minerals and scale. Blowdown frequency is controlled by the FTBD Hours parameter below. (Default = On)

FTBD Time

Sets the time of day when a full tank

interrupting humidifier operation during critical times. (Default = 23:30)

FTBD Hours

Sets the number of hours between full tank blow downs. Hours are accumulated on a weighted basis (1 hour at 50% demand = 0.5 hrs). (Default = 100 hr)

Operation | 52

Idle Drain

72 hr

100 %

Hour 23

Day 27

(User Defined Settings Continued)

Menu Set

Idle Mode

Idle Drain

Keep Warm

Idle Mode : Idle Drain

Menu Set

Idle Time

72 hr

Idle Time : 72 hr

Menu Set

Fill Correction

100 %

Fill Corr : 100%

Set

Drain Correction

100%

Drain Corr : 100%

Set

Float Ck

Hour 23

Minute 30

Float Ck : 23:30

Set

Date

Day 27

Month 06

Date : 27/06/09

Idle Mode

Sets what the humidifier will do

Only = Do nothing. Idle Drain = Drain the tank if there is no demand (wait time set with idle Time parameter). Keep Warm = periodically open CV valve to keep tank warm. for a demand and drain the tank if no demand (Default = Idle Drain)

Idle Time

Sets the time without demand before the Idle Drain function will drain the tank (if activated). (Default = 72 hr)

Fill Correction

Increases or decreases the length of fill valve pulses to compensate for abnormal site conditions. (Default = 100%)

Drain Correction

Increases or decreases the length of

site conditions. (Default = 100%)

Float Check

Sets the time of day when a float check to verify drains and float operation will take place. Can also disable the float check. (Default = 23:30 and On)

Date

Sets the date. Selecting Day, Month, or year takes the user to a submenu that allows the value to be increased or decreased by pressing up/down arrows. Set accepts the setting.

53 | Operation

Hour 13

lb/hr

English

Off

(User Defined Settings Continued)

Set

Time

Hour 13

Minute 22

Time : 13:22

Set

Unit Steam

lb/hr

kg/hr

Unit : lb/hr

Set

Language

English

French Dutch German

Language : English

Set

Contrast

Contrast 10

Set

Leak Check

Off

Leak Ck : Off

CAUTION: Improper control configuration can result in over humidifying which can result in damage to property.

Time

Sets the time of day. Selecting Hour or Minute takes the user to a submenu that allows the value to be increased or decreased by pressing u/down arrows. Set accepts the setting.

Unit

Sets the units of measure to use for display of steam output to either lb/hr or kg/hr. (Default = lb/hr)

Language

Sets the language to use for the software menu. (Default = English)

Contrast

Adjusts the contrast of the LCD display to improve visibility under different lighting conditions. (Default = 10)

Leak check

Sets whether the controller should monitor tank level during periods of no demand. If on a fault will be generated if water level drops with no demand. (Default = Off)

Control Setting

Control Setting allow you to set the type of external controls the humidifier is connected to. In most cases the Nortec SETC humidifier is factory configured to operate with the external controls that were specified for the site. Press Set while highlighting Control Setting in the Main Menu.

Operation | 54

Source : Analog

Analog

Demand

Single CH

StandAlone

(Control Settings Continued)

Set

Control Setting

Source : Analog

REG Mode : Demand MOD Mode : Dual CH Multi Mode : Standalone CNT Type : 0-10

LIM Type : 0-10

Only present if Mod Mode set to Dual CH

Short CD : On

Short CD Tm : 30 s

Only present if Short CD set to On

Time Prop. : Off Manual Cap : 100%

Mulit Unit Op Range

Only present if Multimode set to Master or Slave

Modbus Settings Press Base : On

Supply Press. : 15 psi

Only present if Press Base set to On

RH Settings

Only present if REG Mode set to RH (P) or RH (PI)

Analog

Digital

Set

Source

Analog

Set

Regulation Mode

Demand

On/Off RH (P) RH (PI)

REG Mode : Demand

Set

MOD Mode

Single CH

MOD Mode : Single CH

Set

Multi Mode

StandAlone

Standalone

Slave

Multi Mode : Standalone

Source

Configures the humidifier to either accept analog control signals from a humidistat or digital signals from a Building Management System

REG Mode

Configures the type of control used

proportional only internal control based on a transducer signal. RH (PI) is proportional control with an integral.

MOD Mode

Configures the humidifier to either

(control only) or dual channel (control and high limit). If an On/Off high limit humidistat is used set MOD Mode to Single CH

Multi Mode

Use Multi Mode to configure the

humidifier of a group controlled by a single control signal / transducer signal. See Multi Unit Op. Range later in this section. (Default = Standalone)

55 | Operation

0-10V

Off

0-10V

30 s

Off

100%

(Control Settings Continued)

Set

CNT Type

0-10 V 0-5 V 1-5 V

0-10 V

2-10 V 0-16 V 32-16 V 0-20 mA 4-20 mA

CNT Type : 0-10

Menu Set

Short Cycle Delay

Off

Short CD : Off

Menu Set

LIM Type

0-10 V 0-5 V

0-10 V

2-10 V 0-16 V

3.2-16 V

LIM Type : 0-10V

Menu Set

Short Cycle Delay Time

30 s

Short CD Tm : 30 s

Menu Set

Time Proportioning

Off

Time Prop. : Off

Set

Manual Capacity

100% 100% Manual Cap : 100%

CNT Type

Configures the Volt or amp range of the control signal connected to the humidifier

LIM Type

Configures the Volt or amp range of the high limit control signal connected to the humidifier. The type of control, VDC or mA, must be the same as that of CNT Type.

Short Cycle Delay

Sets whether the humidifier must

by the Short CD Tim parameter) whenever demand falls below the On threshold to prevent short cycling. (Defualt = Off).

Short CD Tim

Specifies the minimum time the

whenever demand drops to the off condition. It is only checked if Short CD is set to On. (Default = 30 s)

Time Prop

Sets whether the humidifier will run

demand is less than 15%. On results in the humidifier turning on and off for short periods of time to simulate low output. (Default = Off).

Manual Cap

Reduces the maximum capacity of the humidifier to a percentage of its full capacity. Use up/down buttons to increase/decrease and press Set to save the setting. (Default = 100%)

Operation | 56

Full Out : 20%

Parity : Even

(Control Settings Continued)

Set

Modbus Settings

Parity : Even

Timeout : 300 s Rem Disable : On

Modbus Settings

Menu Set

Pressure Based

On Off

Press. Based : On

NOTE: The Multi Unit Op. Range submenu is only displayed if the humidifier has been configured as either a Master or Slave. It is not displayed in Standalone mode.

Multi Unit Op. Range

Full Out : 20%

Zero Out

: 0%

Set

Multi Unit Op. Range

The Nortec SETC can be configured to network up to sixteen (10) humidifiers (or equivalent of 10,500 lb/hr) using a master slave configuration. To operate the Nortec SETC in a staged modulation system;

 The humidifiers must be connected in parallel (daisy chained) using the linkup terminal (J2a)

on the Nortec SETC driver board (See Staged Modulation Wiring on page 31).

 One humidifier must be designated the master and all others as slave units (see Multi Mode

on page 54 for software configuration). The master unit must be the unit to which external controls / transducers and safety loop are connected.

 Each humidifier in the system including the master must have the range of demand signal in

which it will operate configured (see below). Example, for four humidifiers with equal capacity set the master to operate between 0% and 25%, set the fist slave for 26% to 50%, set the second slave for 51% to 75%, and set the third slave for 76% to 100%.

The Multi Unit Op. Range submenu is used to configure the humidifier’s operating range when Multi Mode in the User Defined Settings menu is set to either Master or Slave. The menu is not displayed if the humidifier is set to Standalone operation. Access the Multi Unit Op. Range submenu by pressing the menu button while Multi Unit Op. Range is highlighted in the Control Settings menu.

Multi Unit Op. Range

Full Out sets the system demand at

its full capacity. Zero Out sets the system demand at which the humidifier should shut off.

Modbus Settings

Allows configuration of

Selecting an item brings up a screen that allows the value to be changed by using the up/down arrow keys. Rem Disable allows the user to turn the humidifier on if it has been remotely disabled.

Pressure Based

Configures the humidifier to use steam supply pressure to calculate system output. If set to off the output displayed is based on a supply pressure of 15 psi.

57 | Operation

15 psi

40% RH

15% RH

CNT Set-P : 40% RH

5 min

(Control Settings Continued)

RH Settings

CNT Set-P : 40%

CNT Band : 15% RH CNT Itime : 5 min

LIM Set-P : 80% RH LIM Band : 15% RH LIM Damp : 5 s

Only present if MOD Mode is set to Dual CH

RH Alerts : On

RH High : 75% RH RH Low : 33% RH

Only present if RH Alerts is set to On

RH Settings

Menu Set

Supply Pressure

15 psi 15 psi

Supply Press. : 15 psi

Menu Set

Control Set Point

40% RH

CNT Set-P : 40%

Menu Set

Control Band

15% RH

CNT Band : 15% RH

Note: The RH Settings menu selection will only be displayed in the Control Settings menu if REG Mode is set to RH (P) or RH (PI).

Menu Set

Control Integral Time

5 min

CNT Itime : 5 min

Supply Press

Sets the steam supply pressure for the humidifier to us in displaying its steam output. It is only displayed if Press Based is set to On. (Default = 15 psi)

RH Settings

The RH Settings submenu is used to adjust setpoint, the proportional band, and the integral time if REG Mode is set to RH (P) or RH (PI) and the humidifier is connected to humidity sensors. Access the RH Settings submenu by pressing the menu key while RH Settings is highlighted in the Control Settings menu.

CNT Set-P

Sets the humidity setpoint value. The humidifier will attempt to maintain this humidity level in the space where the control transducer is installed.

CNT Band should not normally be changed. The CNT Band setting

humidifier will modulate between 0 and 100% output. (Default = 15%)

Int Time should not normally be changed. Int Time adjusts the

corrects for proportional control error. It is only displayed if REG Mode is set to RH (PI) (Default = 5 min)

Operation | 58

80% RH

15% RH

5 s

75% RH

33% RH

(RH Settings Continued)

Menu Set

Limit Set Point

80% RH

LIM Set-P : 80%

Menu Set

Limit Band

15% RH

LIM Band : 15% RH

Menu Set

Limit Damping

5 s

LIM Damp : 15% RH

Menu Set

RH Alerts

RH Alerts : On

Menu Set

RH High

75% RH

RH High : 75%

Menu Set

RH Low

33% RH

RH Low : 33% RH

LIM Set-P

Sets the duct high limit setpoint

the high limit the output of the humidifier will be throttled back to prevent wetting the duct. (Default = 80%)

LIM Band

Should not normally be changed. The

within which the humidifier will throttle down the humidifier output from 100 to 0%. (Default = 15%)

Limit Damping

Sets the number of seconds the

band before output is throttled down. (Default = 5 s)

RH Alerts

Sets whether the humidifier will

above or falls below configured limits. (Default = Off)

RH High

Sets the RH level above which the

is generated. Warning is only generated if RH Alerts is set to on.

RH Low

Sets the RH level below which the

is generated . Warning is only generated if RH Alerts is set to on.

59 | Operation

Fault History

Diagnostic Menu

Set

Diagnostic Menu

Fault History

Service History Output Test Remote Test

Fault History

04.14.07 21:48 E19A

03.20.09 02:35 E19A

Set

Service History

04.21.07 09:10

03.21.09 10:10

Set

Output Test

Inlet Valve: Off

Menu Set

Remote Test

Steam Relay: Off

The Diagnostic Menu provides a historical list of errors and service recorded by the humidifier’s software as well as providing the ability to manually activate humidifier components for troubleshooting purposes. Press Set while highlighting Diagnostic Menu in the Main Menu.

Fault History

Displays a list of faults which the controller has recorded. It shows the date and time at which the faults occurred. Refer to Table 13: Troubleshooting Warnings and Faults for meaning of codes and suggested actions to correct faults.

Service History

Displays a list of service that has been performed on the humidifier. It displays the date and time of service.

Output Test

Provides a means for activating all humidifier components (inlet valve, drain pump, etc.) for diagnostic purposes. Components can be activated one at a time. Scroll to component to be tested using up/down buttons, press Set once to activate, press again to turn off.

Remote Test

Provides a means for testing of remote fault relays to confirm they are operating correctly. Relays can be activated one at a time. Scroll between relays with up/down arrow buttons and press Set once to turn on relay, press again to turn it off.

Operation | 60

SEP Humidifier Configuration

Caution: Never adjust jumpers other than those listed in this section. Other jumpers are factory set and must not be changed.

The Nortec SEP is factory configured to operate under most conditions without the need for any changes to its configuration. If required several settings can be made using jumpers on the Nortec SEP’s control board. The blowdown of the Nortec SEP can also be adjusted by using a potentiometer on the Nortec SEP’s control board. See Figure 46: Nortec SEP Control Board Jumpers for location of jumpers and the blowdown adjustment potentiometer.

Note: Condair recommends not making any configuration changes unless they are required

and that any changes to the Condair SEP’s settings be performed by a qualified technician.

Blowdown Adjustment Potentiometer

Jumpers

Blowdown Adjustment

Figure 46: Nortec SEP Control Board Jumpers

J11 to J18

Jumper J10

25%

Sets the amount of water as a percentage of steam produced that will be drained to control mineral concentration in the tank. The blowdown adjustment potentiometer is located on the side of the control board as shown in Figure 46. It can adjust the blowdown between 0% and 50% of steam produced. (Factory setting = 25% blowdown).

0% 50%

Note: 0% blowdown should never be used even with Deionized

water. Minimum recommended setting is 5%.

61 | Operation

On/Off or Modulating Control (J10)

Resulting Control

J11

J12

J13

SEP 50/100

0 0 0

SEP 175

1 0 0

SEP 250

0 1 0

SEP 375

1 1 0

SEP 525

0 0 1

SEP 750

1 0 1

SEP 1050

1 1 1

Resulting Control

J14

J15

No Full Tank Blowdown

96 hours between FTBD

48 hours between FTBD

24 hours between FTBD

The Nortec SEP’s output can be controlled by either an On/Off humidistat or a modulating humidistat. To set the Nortec SEP to operate with a modulating humidistat remove Jumper J10. (Factory setting = jumper removed, modulating operation)

J10 Removed– Modulating operation, the controller monitors the demand signal on terminal point 4 of the control terminal strip and adjusts humidifier output to match it.

J10 Installed - The Nortec SEP is configured for On/Off operation. The controller will ignore any modulating signals even if they are connected.

Nortec SEP Model (J11 to J13)

The Nortec SEP model is configured using Jumper 11 to 13. The jumper setting is configured at the factory and should not be adjusted in the field.

Table 8: SEP Model Configuration

Full Tank Blowdown (J14 and J15)

The Nortec SEP can be configured to periodically drain the tank to help flush minerals and scale. Jumpers 14 and 15 control blowdown frequency. Hours are accumulated on a weighted basis (1 hour at 50% demand = 0.5 hrs). (Default = J14 and J15 installed, no full tank blowdown)

Table 9: Full Tank Blowdown Jumper Configuration

Modulation Offset (J16)

The Nortec SEP controller can be configured to work with a modulating humidistat with 4-20 mA or 2- 10 VDC output. Modulation offset can be configured with jumper 16. (Factory setting = Jumper removed, 0-10 VDC or 0-20 mA control signal)

J16 Removed – Controller is configured for a 0-10 VDC or 0-20 mA control signal.

J16 Installed – Controller is configured for a 2-10 VDC or 4-20 mA control signal.

Note: For mA control a 500resister is required between terminals 3 and 4 on the low voltage

control terminal.

Operation | 62

Resulting Control

J10

J16

On/Off

No Affect

Modulating 0-10 VDC or 0-20 mA

Modulating 2-10 VDC or 4-20 mA

Table 10: Control Jumper Configuration

Drain Water Cooling (J17)

The Nortec SEP can be configured to cool drain water by activating the fill valve whenever the drain pump is activated. To disable drain water cooling remove jumper J17. (Factory setting = jumper installed, drain water cooling active)

J17 Removed – The fill valve is not activated together with the drain pump.

J17 Installed – The fill valve activated together with the drain pump to cool drain water.

Float Check (J18)

Whenever the Nortec SEP is first powered it performs a float check to ensure water level detection is working properly. The float check can be deactivated via jumper 18. (Factory setting = jumper removed, float check is performed)

J18 Removed – A float check is performed whenever the Nortec SEP is powered on.

J18 Installed – A float check is not performed whenever the Nortec SEP is powered on.

63 | Maintenance and Servicing

Maintenance and Servicing

69 Maintenance Shutdown and Extended

70 Nortec SETC/P Maintenance Checklist

Required Maintenance

64 Service Warning / Fault 65 Maintenance Schedule 66 Cleaning the Tank 67 Cleaning the Heat Exchanger 68 Cleaning the Float Chamber

68 Resetting Service Reminder

Shutdown

Maintenance and Servicing | 64

Required Maintenance

Caution: Power to the humidifier should always be turned off using the dedicated external disconnect before removing the door or side panel, or before doing any service work on

the humidifier.

Service Warning / Fault

The Nortec SETC controller includes a timer that monitors the humidifier’s operating hours and generates a warning when service is required. Optimal maintenance time is dependent on water supply conditions and humidifier usage. The default factory service reminder is equivalent to 500 hours of operation at 100% output. Failure to perform maintenance when the service warning is displayed will cause the unit to lock out. Condair is not responsible for any damages resulting from, or attributed to not performing required maintenance. (See Manufacturer’s Warranty).

Service LED On

HMW - Humidifier

Maintenance

Service timer has

expired and humidifier

needs maintenance

+ 200 Hours

Fault LED On

HMF - Humidifier

Service timer + 200 hours has passed. Maintenance

must be performed.

Maintenance

Humidifier has

shut down.

Request – 68%

Warning

HMW - Humidifier Maintenance

Humidifying 134 lb/hr 04/30/09 14:25:22 Security loop: Closed

Request – 68 %

Fault

HMF - Humidifier Maintenance

Fault 34 lb/hr 04/30/09 14:25:22 Security loop: Closed

Warning

When the software determines that the service timer has elapsed it first

displays a warning and turns on the

yellow service LED. The humidifier will continue to operate for another 200 hours after the warning is displayed.

Fault

After 200 hours the humidifier will display a fault and shut down.

If maintenance is not possible the humidifier can be temporarily put

back into service by turning the humidifier off and on. The humidifier will run for another 200 hours.

This reset can be repeated 4 times after which the humidifier will not run until the Reset Service Reminder function is entered in the software’s service level.

Figure 47: Service Warning / Fault

65 | Maintenance and Servicing

Maintenance Schedule

Item

30 Days

After

Start-up

When

Service

Light is

Lit

End of

Season

What to Do

Tank



1. Remove service door and inspect for scale.

2. Remove scale deposits from tank walls using plastic scraper.

3. Collect scale deposits from tank bottom using wet vac or scraper and bucket.

Heat Exchanger



1. Remove service door and inspect for scale.

2. Remove scale deposits from tank walls using plastic scraper.

3. Collect scale deposits from tank bottom using wet vac or scraper and bucket.

4. Once per season remove heat exchanger, clean, and inspect.

Gaskets

 



1. Inspect for cracking or damages.

2. Remove any scale deposits before re-installing.

Float Chamber



1. Remove float chamber, and float chamber lid.

2. Clean any scale deposits from walls and float magnets.

3. Re-install magnets.

Heater System



1. Inspect for dust and dirt build-up.

2. Blow clean with compressed air.

Fill System

 

1. Inspect for leaks at float chamber and fill valve.

Drain System

 

1. Inspect for leaks at drain pump, auxiliary drain, and

internal vacuum break.

Steam Trap



1. Inspect for deposits and float operation.

2. Replace thermal disk if necessary.

3. Clean all ports and inside of trap body.

Wye Strainer



1. Remove service plug and clean out collector screen.

Steam Valve



1. Inspect actuator operation.

2. Perform leakage test to ensure that valve is closing properly.

Boiler Pressure



1. Inspect Pressure Reducing Valve operation. Pressure must not exceed 15 psig

Note: After performing the first maintenance on the Nortec SETC it is possible to increase or decrease the service period to match water conditions. If the tank, heat exchanger, and float chamber are relatively clean and free of scale increase the service period. If there is a lot of scale and it is difficult to remove then reduce the service period and consider increasing the blow down setting. (See Nortec SETC Configuration)

Regular maintenance is required to keep the Nortec SE Series humidifier operating at its peak capacity and efficiency. Follow the maintenance schedule shown in Table 11: Nortec SE Humidifier Maintenance Schedule to ensure long humidifier life and peak performance.

Table 11: SE Humidifier Maintenance Schedule

Maintenance and Servicing | 66

procedure in the next section.

Cleaning the Tank

Warning

 Disconnect main power at the external disconnect before any servicing.  Tank and piping may be hot, take care when handling.

 Avoid using de-scaler chemicals or caustic chemical which can damage the tank or

heat exchanger.

The tank, heat exchanger, and float chamber should be cleaned at least once per season to remove scale and mineral deposits which can reduce unit efficiency. In areas with high mineral content in the water, cleaning should be more frequent.

1 Follow Maintenance Shutdown and Extended Shutdown procedure on page 69. Give the

unit some time to cool down to avoid injury when servicing.

2 Remove the cabinetry covers on the front (all models) and top (Nortec SE 525 – 1050

models) by removing the Phillips type screws and lifting the covers.

3 Remove the tank maintenance doors on the front (all models) and top (Nortec SE 525 –

1050 models) by applying anti seize compound to nuts and using 1/2 in. socket. Remove excess anti seize compound.

4 Inspect the tank door gaskets. Remove any scale from the gaskets, the tank door gasket

surface, and tank gasket surface.

5 Using a plastic scraper, such as those used for car windshields, remove scale adhered to

tank walls and visible portions of the heat exchanger. Remove this scale from the unit. A wet vacuum can be used for this purpose.

6 Inspect the heat exchanger. If significant scale build-up has occurred, follow the cleaning

Top Cover

Front Cover

Gaskets

Tank Door Locknuts. Apply anti seize compound to remove. Do not crush gasket. Max 5 ft-lbs torque.

Top Maintenance Door (Nortec SE 525 - 1050 Only)

Front Maintenance Door

Figure 48: Tank Access For Cleaning

67 | Maintenance and Servicing

7 Reinstall the tank door gaskets and tank doors. When tightening the tank door nuts, take

care not to over tighten. The tank door nuts should only be torqued to 5 ft-lbs to prevent crushing the gasket underneath.

Cleaning the Heat Exchanger

1 Follow Maintenance Shutdown and Extended Shutdown procedure on page 69. Give the

unit some time to cool down to avoid injury when servicing.

2 Remove the cabinet cover on the right side by removing the Phillips type screws and lifting

the covers.

3 Disconnect the union that transports steam into the heat exchanger and remove the F&T

trap by disconnecting the two unions that hold it in place.

4 Apply anti seize compound to heat exchanger nuts and remove with 1/2 in. socket.

Remove excess anti seize compound.

5 Remove the heat exchanger(s) by pulling on the handle and sliding the heat exchanger out

of the unit.

6 Note: Heat exchangers are heavy, use proper lifting technique when removing them. It is

helpful to have an assistant help remove the heat exchanger.

7 Inspect the heat exchanger gaskets. Remove any scale from the gaskets, the heat

exchanger gasket surface, and tank gasket surface.

8 Using a plastic scraper, such as those used for car windshields, remove scale adhered to the

heat exchanger.

9 Reinstall heat exchanger gaskets and heat exchanger. When tightening nuts, take care not

to over tighten. Only torque nuts to 5 ft-lbs to prevent crushing the gasket underneath.

Steam Connection Union

Heat Exchanger Gasket

Cabinet Cover

F&T Trap

Union

F&T Trap

Union

Heat Exchanger

Figure 49: Heat Exchanger Removal

Heat Exchanger Locknuts Apply anti seize compound to remove. Do not crush gasket. Max. 5 in-lb torque

Maintenance and Servicing | 68

Cleaning the Float Chamber

Caution: Do not reverse

float chamber hoses

To tank

To fill valve

Squeeze tabs

to remove assembly

from humidifier

NOTE: If the “Service Reminder” is not reset the humidifier may fault out on the Humidifier Maintenance Fault despite the fact that the maintenance has been performed.

1 Follow Maintenance Shutdown and Extended Shutdown procedure on page 69. Give the

unit some time to cool down to avoid injury when servicing.

2 Remove the cabinet covers on the front of the unit by removing the Phillips type screws and

lifting the covers.

3 Disconnect the electrical connection to the float board. 4 Remove the hose clamps and the hoses from the top and bottom of the float chamber. 5 Remove the reusable tie-wrap from the float chamber by inserting a small screw driver into

the top of the buckle.

6 Squeeze both sides of the mounting bracket to release the float chamber from the slots on

the support bracket.

7 Use a screw driver to remove the 3 screws from top of the float chamber and remove the lid.

Using a small brush or plastic scraper remove any scale from the inside of the chamber.

8 Re-installation is the reverse of removal.

Resetting Service Reminder

After completing maintenance of the Nortec SETC reset the service reminder by following the procedure outlined in Reset Service Reminder on page 50.

Figure 50: Float Chamber Cleaning

69 | Maintenance and Servicing

Maintenance Shutdown and Extended Shutdown

Note: As long as the Nortec SETC is powered, it will automatically drain the tank when there has not been a call for humidity for an extended period of time. This feature will reduce or prevent the possible accumulation of algae and bacteria growing in the tank. The tank will remain empty until there is a call for humidity at which time the fill valve will open and refill the humidifier tank. The unit will go through its normal

process for optimum operation.

The following procedure should be followed to shut down the humidifier for maintenance or should it be required to disconnect power to the humidifier for a period of extended shut-down.

When performing maintenance, the Nortec SETC models include a Tank Pre-Clean feature. Tank Pre- Clean will activate the drain pump to flush out some of minerals in the bottom of the tank, then refill partially with cold water to cool the tank, and finally drain the contents of the tank. This cycle will cool the tank, as well as flush out some deposits.

1 Nortec SETC - Activate Tank Pre-Clean as described in Tank Pre Clean on page 50 or

press and release the drain button to simply drain the tank. Nortec SEP - Turn the On/Off/Drain switch to Drain.

2 Nortec SETC - If preclean was activated wait until the LCD display indicates the preclean is

complete otherwise wait until no water is coming out from the drain. Nortec SEP wait until there is no water coming out from the drain.

3 When the tank has completed draining, turn the main power switch to “Off”. Also, shut off

the electrical power at the disconnect.

4 Close the manual shut-off valve on the steam supply. 5 Close the manual shut-off valve on the water supply line. 6 Briefly open the manual valve on the auxiliary drain line (if applicable) to drain any remaining

water.

7 The unit can now be serviced (if maintenance is being performed), or “stored” in this state

until the next humidification season. Alternatively, Nortec SETC models can be left in 3 day drain state during an “off-season”.

8 To restart the unit follow Start Up Procedure on page 36.

Maintenance and Servicing | 70

Nortec SETC/P Maintenance

Checklist

Model #:

Tag:

Serial

System Check

 HMW (Maintenance Warning )  HMF (Maintenance Fault)   Other warnings or Faults shown in display / LED’s? No Yes 

(See Troubleshooting Chapter for actions to address warnings and faults if present)

Clean Tank / Heat Exchanger / Float Chamber

 Tank drained.   Disconnect open, On/Off switch to Off 

 Water shut off and manual steam valve closed, cabinet covers removed.   Anti seize compound applied to tank maintenance door nuts.   Maintenance doors removed (front and top of 525+).   Tank maintenance door gaskets cleaned and in good condition.   Scale removed from tank.   Heat Exchanger has scale and needs cleaning No  Yes 

If Yes

 Steam supply and condensate unions disconnected   Anti seize compound applied and heat exchanger nuts removed   Heat exchanger removed.   Heat exchanger gaskets cleaned and in good condition.   Heat exchanger cleaned with plastic scraper.   Heat exchanger reinstalled.  Nuts torque to 5 ft-lb 

 Steam supply and condensate unions reconnected.   Tank maintenance doors reinstalled  Nuts torque to 5 ft-lb   Float Chamber removed inspected and cleaned 

General Inspection

 Electrical wiring not loose and in good condition,   Steam hoses and steam lines in good condition / No kinks in hose,   No Signs of water leaking around humidifier, steam line, condensate returns,   Cabinet covers replaced, water shut off valve opened, manual steam valve opened, On/Off

switch to On, Disconnect Closed 

 Nortec SETC only - “Reset Service Reminder” in Software, (Password 0335, Service Level) 

 

Inspected by: Date of inspection: / /

Company:

71 | Troubleshooting

Troubleshooting

76 Nortec

Organization of Troubleshooting Chapter

72 Troubleshooting Requirements

General Troubleshooting

73 Humidifier 74 Steam Distributors 74 Nortec SAM-e 75 Blower Pack

75 Digital Humidistat

SETC Warnings and Faults

76 Warnings

76 Faults

76 Clearing a Fault

82 Nortec SEP Faults

82 Faults

82 Clearing a Fault

83 Nortec SETC Wiring Diagram 84 Nortec SEP Wiring Diagram

Troubleshooting | 72

Organization of Troubleshooting Chapter

NOTE: Most humidifier faults are not caused by faulty equipment but rather by improper installation. A complete fault diagnosis always involves a thorough examination of the entire system. Often, the steam hose connection has not been properly executed, or the

fault lies with the humidity control system.

CAUTION: Be aware, when troubleshooting, that the humidifier is powered by high voltage and pressurized steam. Familiarity with both good practices and wiring of the humidifier is recommended. Any troubleshooting that requires opening the cabinet should be done

by qualified personnel.

The troubleshooting chapter is broken down into 2 sections.

General Troubleshooting Deals with troubleshooting incorrect humidifier operation,

steam line and plumbing issues without any control software warnings or faults.

Humidifier Warnings and Faults Deals with warning and error messages that are generated

by the humidifier’s control software.

Troubleshooting Requirements

 Ensure the installation meets the installation requirements outlined in the Installation

Chapter of this manual.

 Familiarize yourself with the operation of the humidifier by reading the Operation Chapter of

this manual.

 Wiring diagram specific for your humidifier is installed on the inside of the humidifier door. A

generic copy of the Nortec SETC and Nortec SEP wiring diagram is also included at the end of this chapter for reference purposes.

 When contacting your local representative or Condair for troubleshooting assistance,

please ensure the serial number has been obtained for reference purposes.

73 | Troubleshooting

General Troubleshooting

Symptom

Cause

Corrective Action(s)

Nothing happens when On/Off switch is turned on.

1 Fuse blown

1 Check inline fuse in yellow housing

between transformer and driver board. Check and replace fuse on driver board.

2 Incorrect or no Voltage

2a Check voltage against spec label and

correct.

2b Check disconnect and insure

humidifier is getting power.

3 Step Down Transformer not

outputting 24VAC

3 Replace the transformer

Humidifier will not humidify or not reaching RH setpoint

1 Safety loop open

1a Check if green led is flashing on the

humidifier’s display.

1b Check if there is 24 VAC at terminal

1c Check wiring and operation of On/Off

devices connected to terminal 1 and

2. Ensure they are closing when they should be.

2 High limit limiting output

2 Check if the high limit is installed too

close to the humidifier and if it is operating correctly.

3 No signal on Channel 1

3 Check voltage between terminal 3

and 4. For demand configuration 15% of full scale signal must be present for humidifier to start. For transducer configuration the signal must be lower than setpoint for the humidifier to start.

4 No signal on Channel 2

(For units configured for dual channel operation).

4 Check voltage between terminal 5 and

3. For demand configuration 15% of full scale signal must be present for humidifier to operate. For transducer configuration the signal must be lower than setpoint for the humidifier to start..

5 Capacity has been manually

limited

5 Check Manual Capacity on status

screens. Adjust “Manual Cap” in the “Control Setting” menu if necessary.

Humidifier has faulted or has a warning

1 Software has detected an

abnormal condition

1 Refer to Table 13troubleshooting

warnings and faults.

The following section provides general guidelines for troubleshooting the Nortec SETC/P humidifier and auxiliary components. For detailed troubleshooting information refer to the manuals that were provided with the auxiliary equipment, to Table 13: Troubleshooting Warnings and Faults, and to Table 14: Troubleshooting Nortec SEP Faults later in this chapter.

Humidifier

Table 12: General Troubleshooting

Troubleshooting | 74

Steam Distributors

Symptom

Cause

Corrective Action(s)

Distributor spitting out water

1 Distributor not level

1 Use support at end o distributor to

ensure it is level.

2 “P” Trap too close to distributor

2 “P” Trap must be a minimum of 12 in

(30 cm) below the distributor to ensure flow. Relocate if required.

3 Condensate line not sloped

sufficiently

3 Sufficient slope to insure flow is

required. Reinstall if required.

4 Trap blocked

4 Check that water flows through trap.

Clear out if blocked.

5 Condensate line double trapped

5 Condensate lines must not have two

traps in sequence. This can cause an air lock and prevent water draining.

6 Steam line not insulated

6 If steam line is long condensate build

up could overload distributor condensate port. Insulate line to improve efficiency and install additional condensate traps as required.

Condensation in duct

1 Installation clearances not

observed

1 Refer to distributor installation

manual for required clearances. Relocate distributor if required.

2 Design conditions changed

2 Check supply air temperature and

humidity to determine if conditions have changed.

3 High limit not functioning

3 Check setting and operation of high

limit. Replace if defective.

4 Air proving not installed or not

working

4 Check that the humidifier will only

operate when there is air moving in the duct.

5 Improper location of high limit

5 Check that high limit is installed

where it can detect high duct humidity.

Symptom

Cause

Corrective Action(s)

Nortec SAM-e spitting out water

1 “P” Trap too close to SAM-e

1 “P” trap must be at least 12 in (30

cm) below header. Relocate if required.

2 Condensate line not sloped

sufficiently

2 Ensure line is sloped sufficiently to

carry condensate produced.

3 Steam line not insulated

3 If steam line is long condensate build

up could overload the Nortec SAM-e condensate port. Insulate the steam line to improve efficiency and install condensate traps as required.

SAM-e

75 | Troubleshooting

Symptom

Cause

Corrective Action(s)

Nortec SAM-e Grommet leaks

1 Distributor tubes not seated

properly

1 Push distributor tubes down until

support washer is resting on rubber grommet.

2 Grommet Damaged

2 Replace any damaged grommets

Symptom

Cause

Corrective Action(s)

Blower not operating

Note: Blower pack does not come on unless the humidifier is producing steam.

1 No power to blower pack

1a Check power connection.

1b Check blower pack fuses

2 On/Off Thermostat not closing

2 Check wiring to thermostat replace if

it does not close when it is exposed to steam.

Symptom

Cause

Corrective Action(s)

Humidistat Reading incorrectly

1 Sensor out of calibration

1 Check reading against known

reliable instrument. If out of calibration it can be field calibrated ±10%. Press buttons together until calH appears on the display. Press to display the current calibration trim. Adjust using  buttons. Press button when done.

2 Improper sensor location

2 Check that the humidistat is

positioned in a location representative of room humidity.

3 Exposed to draft or heat source

3 Check that heat/cold fluctuations,

drafts, sunlight, doors, or vents are affecting the reading.

4 No vapour barrier

4 Insure drafts cannot affect reading

by ensuing vapour barrier is in place and working.

Blower Pack

Digital Humidistat

Troubleshooting | 76

Nortec SETC Warnings and Faults

Code

Display

Message

LED

System Detected

Cause

Corrective Action(s)

CLF

Clock Fault

Red

Controller system clock

failure.

1 Software has detected

a hardware problem with main control board

1 Restart humidifier, if

error occurs within 1 minute replace main control board. If error does not occur then primary power fluctuation may be the cause.

DCF

Drain Ck Fault

Red

The drain pump is activated but water level has not decreased

1 Drain blocked

1 Check water flow at air

gap when drain activated. Flow should be > 5 gal (20 l) / min.

2 Pump not working

2a Check wiring to pump.

2b Activate pump with

diagnostic output test and verify pump runs and drains water.

The self-diagnostic system built into the SETC is continually monitoring the operation of the humidifier.

Warnings

 When problem symptoms are detected, the Nortec SETC will attempt to take self-corrective

actions to try to correct the problem. A warning is displayed on the screen for information purposes and the humidifier continues to operate.

 If the condition which generated the warning is eliminated the warning is cleared from the

display.

Faults

 If the humidifier is not able to self correct a problem symptom it will if necessary respond by

shutting itself down.

 When this occurs the humidifier illuminates the red “Fault” LED, shuts off the signal to the

CV valve actuator, and activates the “Error” relay of the remote relay board.

Clearing a Fault

 Check the fault message that the humidifier is displaying and take any necessary actions to

correct the cause(s) as outlined in Table 13, Troubleshooting Warnings and Faults.

 Power cycle the humidifier with the On/Off switch waiting 3 seconds between turning it off

and on.

Table 13: Troubleshooting Warnings and Faults

77 | Troubleshooting

Code

Display

Message

LED

System Detected

Cause

Corrective Action(s)

DCF

(Cont)

3 Floats stuck

3a Watch float board lights

while manual drain is activated. Verify lights activate in sequence

3b Remove float chamber

and check for scale

FCF

Fill Check Fault

Red

The fill valve has been active for an extended time without increasing a float level.

1 Water supply off or

inadequate

1a Ensure water line is

open and that adequate water supply and pressure is available.

2 Fill valve strainer

blocked

2a Disconnect water

supply line and remove strainer. Clear if obstructed.

3 Fill Valve not activating

3a Check wiring to fill

valve.

3b Activate fill valve with

diagnostic output test. Verify water is flowing when activated.

4 Float board not

detecting water

4a Check wiring to float

board.

5 Manual drain switch on

or auxiliary drain open.

5a Check that manual

drain switch is not on.

5b Check that auxiliary

drain valve is closed.

FIF

Float Inconsist.

Red

On startup, the unit registers that the float levels do not increase logically from 1 to 5

1 High water flow from

fill valve to float chamber cooling.

1 Check flow from fill

valve hose connected to float chamber. Is only a trickle. If not check hose is connected to correct side of fill valve or if orifice is missing in fill valve.

2. Float chamber or board not in place

2 Check that float board

is properly installed in plastic support , that tie wrap is in place, and that float reservoir is in place.

3 Float level sensor is

malfunctioning.

3 Squeeze bottom hose

from float chamber and activate fill valve using diagnostic output test. Watch for proper light sequence. Replace assembly if sequence is incorrect.

Troubleshooting | 78

Code

Display

Message

LED

System Detected

Cause

Corrective Action(s)

FLF

Float Level

Red

More than one Float Level is registering at the same time

1. Float chamber or board not in place

1 Check that float board

is properly installed in plastic support , that tie wrap is in place, and that float reservoir is in place.

FLF

(Cont)

2 Float level sensor is

malfunctioning.

2 Squeeze bottom hose

from float chamber and activate fill valve using diagnostic output test. Watch for proper light sequence. Replace assembly if sequence is incorrect.

FTF

Fill Fault /

Warning

Red

The fill valve has been active for an extended time without reaching level 1.

1 Water supply off or

inadequate

1a Ensure water line is

open and that adequate water supply and pressure is available.

2 Fill valve strainer

blocked

2a Disconnect water

supply line and remove strainer. Clear if obstructed.

FTW

3 Fill Valve not activating

3a Check wiring to fill

valve.

3b Activate fill valve with

diagnostic output test. Verify water is flowing when activated.

4 Float board not

detecting water

4a Check wiring to float

board.

5 Manual drain switch on

or auxiliary drain open.

5a Check that manual

drain switch is not on.

5b Check that auxiliary

drain valve is closed.

HMF

Maint. Fault /

Warning

Red

The Humidifier Maintenance interval and 72 hour window for cleaning has expired

1 Humidifier requires

maintenance

1 Perform humidifier

maintenance as described Maintenance Schedule on page 65

HMW

Yel

The preset service interval time has expired.

2 Service reminder not

reset after maintenance

2 Reset service reminder

as described in Reset Service Reminder on page 50

KWF

Keep Warm

Fault

Red

Keep Warm activated but tank temperature has not increased within time allotted

1 Tank temperature

sensor not detecting warm tank.

1a Check tank to see if hot

(caution).

1b Check wiring to tank

temperature sensor.

1c Check if sensor closed

when tank is hot.

79 | Troubleshooting

Code

Display

Message

LED

System Detected

Cause

Corrective Action(s)

KWF

(Cont)

2 No steam supply to

humidifier.

2a Check that isolation

valve is not closed.

2b Check if boiler steam is

available.

2c Check if CV valve opens

using diagnostic output test.

3 Condensate not

draining from heat exchanger.

3a Check that F&T trap is

allowing condensate to drain.

LKF

Leak Fault /

Warning

Red

Float level has dropped multiple times while no steam is being produced.

1 Steam leaking through

CV valve

1a CV valve actuator not

adjusted. Follow Figure 11: CV Valve Actuator Installation on page 16.

1a CV valve defective.

Replace CV valve.

LKW

2. Auxiliary drain is leaking.

2a Check that auxiliary

drain valve is closed and is not leaking.

3. Tank or fittings are leaking.

3a Check for leaks from

tank, tank covers, and fittings.

LMI

Limit Instable

Limit signal Is not stable.

1 High limit humidistat

too close to steam distributor

1 Locate the high limit

humidistat a minimum of 10 feet (3 m) from the distributor.

2 High limit humidistat

setpoint too low

2 Adjust the high limit

setpoint to 85% or more.

3 Improper Proportional

and Integral settings in control

3 Adjust proportional and

integral settings to reduce swings in demand signal.

4 Defective control

4 Replace defective

control

MEM

Flash R/W Fault

Red

Controller Memory failure

1 Software has detected

a hardware problem with main control board

1 Restart humidifier, if

error occurs within 1 minute replace main control board. If error does not occur then primary power fluctuation may be the cause.

MTW

ModBus

Timeout

No Modbus signal

1 Loose connection

1 Check connections and

polarity of wires.

2 Incorrect Modbus

address

2 Check that Modbus

address of humidifier matches that of master.

Troubleshooting | 80

Code

Display

Message

LED

System Detected

Cause

Corrective Action(s)

MTW

(Cont)

3 Humidifier configured

for Modbus but not connected to network

3 Configure controls

correctly in “Control Setting” level of software (see Operation Chapter).

4 Improper wire used

4 Use 120 Ohm

impedance shielded twisted pair cable.

5 Noise preventing

humidifier from detecting signal.

5 Eliminate source of

noise causing interference.

NSW

No Signal

Warning

No communication is detected from Master unit. (This unit is set up as slave)

1 Improper wiring

1 Check wiring

connections, polarity, and type of wire used. (See Staged Modulation Wiring (SETC Only) on page 31)

RDW

Remote

Disabled

The unit has been remotely disabled through modbus communication or Nortec Online.

1 Network signal

received by humidifier to shut down.

1 Normal operation for

humidifier on network control Contact network administrator to enable humidifier.

RHW

Rh High

Warning

The measured RH is above the RH High alarm setting.

1 Setpoint higher than

RH alarm setting

1 If the humidifier is still

operating then check and adjust setpoints.

RLW

Rh Low

Warning

The measured RH is below the RH Low alarm setting.

1 Humidifier not running

1 Check why humidifier is

not running and put it into operation.

2 Setpoint lower than RH

low alarm setting

2 Check and adjust

setpoints.

RMW

Rh Limit Warning

Operation is interrupted until an input higher than 3% is received.

1 Sensor not powered

1 Use multimeter to

check that sensor is powered.

2 Sensor not wired

correctly

2 Check wiring is secure

and wired correctly per instructions in installation chapter.

3 Defective sensor

3 Check if sensor is

outputting corresponding to RH. If not replace the sensor.

4 RH less than 5%

4 RH less than 5% are

interpreted as a broken sensor. Contact Condair Representative for recommendation.

81 | Troubleshooting

Code

Display

Message

LED

System Detected

Cause

Corrective Action(s)

5 Humidifier control

configuration incorrect

5 Check that the

humidifier control configuration matches the installed sensor output.

TCF

Tank Cold Fault

Red

The tank has not become hot with the steam valve activated.

1 Tank temperature

sensor not detecting warm tank.

1b Check tank to see if hot

(caution).

1a Check wiring to tank

temperature sensor.

1c Check if sensor closed

when tank is hot.

TCW

2 No steam supply to

humidifier.

2a Check that isolation

valve is not closed.

2b Check if boiler steam is

available.

2c Check if CV valve opens

using diagnostic output test.

3 Condensate not

draining from heat exchanger.

3a Check that F&T trap is

allowing condensate to drain.

Troubleshooting | 82

Nortec SEP Faults

Number of

Flashes / Fault

System Detected

Cause

Corrective Action(s)

One Flash

Humidifier Drain Fault

Water level is not dropping when pump is activated.

1 Internal drain

blocked

Check if water drains from unit when drain manually activated. If not then;

1a Check restrictor in drain line immediately after

pump for blockage.

1b Check pump rotor to see if it is blocked.

1c Check if scale has built up in sump at bottom of

tank and caused a blockage.

2 External drain

blocked

2 Check that water can flow freely through drain

lines.

Two Flashes

Humidifier Fill Fault

Water level not rising or not detected.

1 Water shut off

valve closed

1 Open shut off valve

2 Auxiliary drain

leaking

2a Close auxiliary drain valve if unit does not have

freeze protection.

2b Check freeze protection valve is closed if freeze

protection installed.

3 Fill valve

strainer blocked

3 Clean out strainer on fill valve inlet.

Four Flashes

Inconsistent Float Level

Floats have indicated water level not changing in sequence.

1 High cooling

flow into float chamber

1a Check that orifice in fill valve is in place. Flow

should be very low.

1b Check if tank fill and float cooling lines are

reversed. Flow to float chamber should be very low. Tank hoses to centre of float chamber.

2 Defective float

board.

2 Observe LED’s on float chamber as tank fills. If

LED’s do not light in sequence replace float chamber and float board.

The self-diagnostic system built into the Nortec SEP can display some fault conditions by flashing the yellow “Service” LED in sequence. The Nortec SEP does not display any warnings.

Faults

 If the humidifier is not able to self correct a problem symptom it will if necessary respond by

shutting itself down.

 When this occurs the humidifier illuminates the red “Fault” LED, Flashes the yellow LED in a

numerical sequence, shuts off the signal to the CV valve actuator, and activates the “Error” relay of the remote relay board.

Clearing a Fault

 Count the number of flashes of the yellow LED and take any necessary actions to correct the

cause(s) as outlined in Table 14: Troubleshooting Nortec SEP Faults.

 Power cycle the humidifier with the On/Off switch waiting 3 seconds between turning it off

and on.

Table 14: Troubleshooting SEP Faults

83 | Troubleshooting

Nortec SETC Wiring Diagram

Figure 51: SETC Wiring Diagram

Troubleshooting | 84

Nortec SEP Wiring Diagram

Figure 52: SEP Wiring Diagram

85 | Spare Parts

Spare Parts

Spare Parts| 86

Distributor Spare Parts

Figure 53: Distributor Exploded View and Spare Parts

87 | Spare Parts

Nortec SETC/P 100 – 1050 Plumbing Parts

4 3 5 8 9

15 1 14

Figure 54: SETC 100-1050 Plumbing Parts

Spare Parts| 88

Table 9: Nortec SETC/P 100-1050 Plumbing Parts List

Item

Description

Part No.

100

175

250

375

525

750

1050

Cover Plate Assy.

2544439

1 1 1 1 1 1 1 2 O-ring, Clean Out Port

2524361

1 1 1 1 1 1 1 3 O-ring, Clean Out Port,

2524361

1 1 2

Cover Plate, Clean Out Port

2547539

1 1 2

Fill Box Assy.

2526152

1 1 1 1 1 1 1 6 Lower Mixing Box

1506749

1 1 1 1 1 1 1 7 Drain Pump 24v 60 Hz

1502644

1 1 1 1 1 1 1

Vacuum Break Valve 1/2" NPT

1505959

1 1 1 1 1 1 1 9

P-Trap

2526521

1 1 1 1 1 1 1

Dual Fill Valve 10.0 l/min &

0.35 l/min

1505759

1 1 1 1 1

Dual Fill Valve, 17.0L/Min & 0.35L/Min

1508581

Auxiliary Drain Termination

1506925

1 1 1 1 1 1 1

Steam Trap, 15psi

1508849

1 1 1 1 2 2 3

Float Board

2511137

1 1 1 1 1 1 1

Float Chamber Mounting Bracket

1113777

1 1 1 1 1 1 1

Float Chamber

1115933

1 1 1 1 1 1 1

O-ring, Heat Exchanger, Large

2524403

1 1 2 2 3

O-ring, Heat Exchanger, Mini

2524405

Heat Exchanger Kit, Single

2581131

1 1 2 2 3

Heat Exchanger Kit, Mini

2581132

Modulating Actuator 0-10 VDC

1507549

1 1 1 1 1

Modulating Actuator 0-10 VDC, 2.5 Val

1508472

Valve 3/4 in. CV 5.5

1594322

Valve 1 in. CV 10.0

1594324

Valve 1 in. CV 12.0

1594332

Valve 1.25 in. CV 20.0

1594341

Valve 1.5 in. CV 28.0

1594350

Valve 2.0 in. CV 40.0

1594360

Valve 2.5 in. CV 65.0

1508473

89 | Spare Parts

Nortec SETC/P 100 – 1050 Cabinet and Electrical Parts

12 3 4 5 5

11 6 10

7 8 17

Figure 55: Nortec SETC/P 100-1050 Cabinet and Electrical Parts

Spare Parts| 90

Table 10: Nortec SETC B+/P 100 – 1050 Cabinet and Electrical Parts List

Item

Description

Part No.

100

175

250

375

525

750

1050

Service Door, Mini

2523709

Service Door, Single

2524402

Service Door, Double

2524401

1 Service Door, Triple

2523704

1 2 Recessed Handle,

2523444

1 1 1 1 2 2 2 3 Kit Processor Board SE

2553861

Not

Shown

Cable , 40 Pin Ribbon

2537230

Panel Processor Display,

2544253

Not

Shown

Membrane, Nortec

1509735

Switch Rocker DPST 10A-250V

2522489

Remote Fault Indication Board SETC

2550184

Not

Shown

Cable, 10pin Ribbon

2522062

PCB Driver Board

2535504

Transformer,120/240V, 24V,150VA

2532672

Door, Front, GS-SE

2523597

Panel, Electrical Cabinet

Reference - Contact Factory

Panel, Elec. Bottom

Reference - Contact Factory

Panel, Rear Elec.

Reference - Contact Factory

Panel, Tank Rear

Reference - Contact Factory

Panel, Elec. Top

Reference - Contact Factory

Panel, Top Tank

Reference - Contact Factory

Panel, Left,

Reference - Contact Factory

Base Assembly

Reference - Contact Factory

91 | Spare Parts

Nortec SETC/P 50 Plumbing Parts

13 9 8

19 5 4

Figure 56: Nortec SETC/P 50 Plubming Parts

Spare Parts| 92

Table 11: SETC B+/P 50 Plumbing Parts

Item

Description

Part No.

Qty

Tank Replacement Kit, SE50

2520458

Heat Exchanger Replacement Kits, SE50

2520460

Gasket, Tank/H.E. Assembly, SE50

1510179

F&T Trap Assembly, with Plumbing, SE50

1500181

Float Chamber Assembly, with Board and Connections, SE50

2520239

1 6

Float Board

2511137

Bracket, Float Chamber Mount, SE50

2520240

5 Cover Plate Kit, Clean Out Port, SE50

2520461

Gasket, Clean Out Port, SE50

1510180

P Trap Mount Assembly, SE50

2520137

Dual Fill Valve, 5.5L -.35 L/Min

1704234

Fill Box Assembly with Connections, SE50

2520235

Vacuum Break Valve 1/2" NPT

1505959

Termination Assembly with Connections, SE50

2520236

P Trap Assembly, Complete, SE50

1510187

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

1502644

Auxiliary Drain Termination

1506925

Modulating Actuator 0-10 Vdc

1507549

Valve 1/2in CV 2.80 / VB7263

1594316

93 | Spare Parts

Nortec SETC/P 50 Electrical and Cabinet Parts

Nortec SETC Electrical

NortecSEP Electrical

7 1 1

7 3 6

9 9 13

Figure 57: Nortec SETC/P 50 Electrical and Cabinet Parts

Spare Parts| 94

Item

Description

Part No.

Qty

Panel Assembly, Electrical Front, Cabinet SE50

2520268

Kit Processor Board SE

2553861

Not

Shown

Cable, 40 Pin Ribbon

2537230

Panel Assm, Display, Cabinet, SE 50 B+

2552793

PCB Driver Board

2535504

Remote Fault Indication Board SETC

2550184

Not

Shown

Cable, 10 pin Ribbon

2522062

Switch Rocker DPST 10A-250V

2522489

Bracket Assm, Keypad Mnt, SE50

2520272

Enclosure, Transformer, Cabinet, SE50

2549857

Transformer,120/240Vpri,24Vsec,150VA

2532672

Terminal Block 2 Pole

1473002

Ground Clamp

1323020

Switch DPDT ON/OFF/DRAIN SETC/SEP

2538961

SEP Display / Keypad Assembly, SE50

2520279

SEP, Led Board Assembly

1508619

SEP Control Board

1508577

Panel Access, Elect Right, Cabinet, SE50

2520283

SETC

Panel,Access,Electrical Front SE 50 B+

2552792

SEP

Panel Access, Elect Front, Cabinet, SE50

2520270

Panel, Access, Tank Front, Cabinet, SE50

2520267

Table 12: Nortec SETC B+/P 50 Electrical and Cabinet Parts

95 | Warranty

Warranty | 96

Warranty

Condair Inc. and/or Condair Ltd. (hereinafter collectively referred to as THE COMPANY), warrant for a period of two years after installation or 30 months from manufacturer’s ship date, whichever date is earlier, 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 the companies 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 makes no warranty and assumes no liability whatsoever for damage resulting from freezing of the humidifier, supply lines, drain lines, or steam distribution systems.

THE COMPANY makes no warranty and assumes no liability whatsoever for equipment that has failed due to ambient conditions when installed in locations having climates below 14°F (10°C) during January or above 104°F (40°C) during July.

THE COMPANY retains the right to change the design, specification and performance criteria of its products without notice or obligation.

Certificate No. 002419

U.S.A. Condair Inc.

826 Proctor Avenue Ogdensburg, NY 13669

CANADA Condair Ltd.

2740 Fenton Road Ottawa, Ontario K1T 3T7

TEL: 1.866.667.8321 FAX: 613.822.7964

EMAIL: na.info@condair.com WEBSITE: www.condair.com

Nortec SETC 50, SETC 250, SETC 100, SETC 175, SETC 375 Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual