Condair 2552940-D SE Series Installation guide

Condair 2552940-D SE Series Installation guide
Important: Read and save these instructions. This guide to be left with equipment.
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.
INSTALLATION DATE (MM/DD/YYYY)
MODEL #
SERIAL #
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.
Copyright Notice
Copyright 2018, Condair LTD. All rights reserved.
Contents
1 Introduction
43 Operation
2
Receiving and Unpacking
44
Nortec SETC LED Status Lights
3
Humidifier Components
44
Nortec SEP LED Status Lights
5
Nortec SETC/P Models
45
How the Humidifier Works
6
Options and Accessories
49
Nortec SETC Humidifier Configuration
60
Nortec SEP Humidifier Configuration
9 Installation
63 Maintenance and
Servicing
10
Typical Humidifier Installation
11
Location
12
Mounting
64
Required Maintenance
14
Plumbing
65
Maintenance Schedule
15
Boiler Steam and Boiler
Condensate Return
69
Maintenance Shutdown and
Extended Shutdown
17
Steam Lines and Condensate
Returns
70
Maintenance Checklist
71 Troubleshooting
22
Electrical
73
General Troubleshooting
23
External Controls
76
Nortec SETC Warnings and Faults
32
Options and Accessories
82
SEP Faults
83
Wiring Diagrams
33 Start Up
34
Installation Check
35
Nortec SETC User Interface
36
Start Up Procedure
37
Status Screens
39
Digital Controls
41
Start Up Checklists
85 Spare Parts
96 Warranty
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.



1 | Introduction
Receiving and Unpacking
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.
Note: A steam valve, actuator, and wye strainer are shipped along with the SETC/P
humidifier but in separate small boxes.
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
Introduction | 2
Humidifier Components
Float Chamber
Display and Keypad
Control Terminal Strip
Tank
On/Off Switch
Clean Out
Port
Remote Relay
Board
Heat
Exchanger
Gasket
Driver Board
High Voltage
Terminal Block
Base
Manual Drain Switch
Total Controller
Transformer
Vacuum Break
Steam Outlet
Heat
Exchangers
Fill Box
Steam Inlet
(Faceplate)
(Boiler Steam)
Actuator
Wye Strainer
CV Valve
Fill Valve
Drain Outlet
P Trap
Condensate Drain
(Boiler Steam)
Auxiliary Drain
Outlet
Drain Pump
Steam Trap
Mixing Box
Figure 2: Nortec SETC Humidifier Components
3 | Introduction
Description of Components
Table 1: Humidifier Components
Component
Actuator
Auxiliary Drain
Outlet
Base
Clean Out Port
Condensate Drain
Control Terminal
Strip
CV Valve
Display and Keypad
Drain Outlet
Drain Pump
Driver Board
Fill Box
Fill Valve
Float Chamber
Gasket
Heat Exchanger(s)
High Voltage
Terminal Block
Manual Drain Switch
Mixing Box
On/Off Switch
P Trap
Remote Relay
Board
Steam Inlet
Steam Outlet
Steam Trap
Tank
Total Controller
Transformer
Vacuum Break
Wye Strainer
Function of Component
Opens and closes the CV valve in proportion to demand for steam.
Drains water from tank in case of pump failure.
Provides an integrated floor support for the humidifier.
Provides access to clean scale from the tank and heat exchanger.
Drains condensate formed from boiler steam in the heat exchanger(s)
Terminal strip for connecting external controls and blower pack to
humidifier.
Controls the amount of steam allowed into the heat exchanger which in
turn controls the output of the humidifier.
User interface for configuring the humidifier.
Drain port used for draining water from the humidifier tank.
Drains water from humidifier.
Provides input and output connections to humidifier components.
Provides an air gap for backflow prevention.
Controls flow of water into humidifier.
Measures water level in the humidifier tank.
Seals heat exchanger face plate and clean out port cover to tank.
Exchanges energy from boiler steam to the tank water to produce steam
for humidification. The faceplate mounts the heat exchanger to the tank.
Primary power connection from remote disconnect to humidifier.
Manually activates pump to drain water from the tank.
Blends hot tank water with cool fill water to provide drain water cooling.
Turns power On/Off to humidifier controller. Note: Turn off humidifier
disconnect to shut off primary power to the humidifier.
Prevents steam from flowing out the drain outlet.
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.
Connection for boiler steam, it is connected to the heat exchangers.
Connect to steam line with steam hose.
Drains condensate from the heat exchanger without letting boiler steam
escape to drain.
Holds the water used to generate clean steam for humidification.
Controls all functions of the humidifier’s operation and provides user
interface for configuration of the humidifier.
Steps primary voltage down to 24 VAC for the controller and internal
components such as the fill valve and drain valve.
Prevents a siphon from occurring when the drain pump is stopped.
Protects CV valve and other system components from dirt and rust in the
piping system.
Introduction | 4
Nortec SETC/P Models
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.
SETC50
Note:
SE 750 has
2 steam outlets
SE 525-750
SE 100-175
SE 1050
SE 250-375
Figure 3: Nortec SETC/P Models
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.
5 | Introduction
Outdoor Model (Nortec SETC Only)
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
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.
Introduction | 6
Table 3: Nortec SETC/P Specifications
Nortec
Model
SETC
Part No
SEP
Part No.
CV
Valve
CV Valve,
Steam
Inlet, Wye
Port (NPT)
Condensate
Port
(NPT)
50
2552765
2520383
2.8
1/2
3/4
100
175
250
375
525
750
2550073
2550074
2550075
2550076
2550077
2550078
2525132
2525133
2525134
2525135
2553312
2553313
5.5
10
12
20
28
40
3/4
1
1
1 1/4
1 1/2
2
3/4
3/4
3/4
3/4
1
1
1050
2550080
2525139
77
2, 2 1/2,
2 1/2
1 1/4
Net/Full
Weight
lb (kg)
Required
fill line
flow
gal (l)
/min
125/180
(57/82)
267/423
(121/192)
355/599
(161/272)
529/992
(240/450)
703/1384
(318/628)
Required
Drain
capacity
gal (l)
/min
2.6 (10)
5.2 (20)
4.5 (17)
8 (29)
Electrical
Voltage
110-120
Phase
1
Amps
1.25 A
Power
0.15 KW
Max
Disconnect
15 A
Table 4: Nortec SETC/P Capacities and Water Consumption
Nortec
Model
50
100
175
250
375
525
750
1050
*Supply
Steam
Pressure
(psig)
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
*Max Output
lb/hr (kg/hr)
13
32
50
26
63
100
46
110
175
65
158
250
98
236
375
137
331
525
195
473
750
273
662
1050
(6)
(14)
(23)
(12)
(29)
(45)
(21)
(50)
(80)
(30)
(72)
(114)
(44)
(107)
(170)
(62)
(150)
(239)
(89)
(215)
(341)
(124)
(301)
(477)
Approximate
Boiler Steam
Consumption
lb/hr (kg/hr)
15 (7)
36
58
30
72
115
52
127
201
75
181
288
112
272
431
157
380
604
224
543
863
314
761
1208
(16)
(26)
(14)
(33)
(52)
(24)
(58)
(91)
(34)
(82)
(131)
(51)
(123)
(196)
(71)
(173)
(274)
(102)
(247)
(392)
(143)
(346)
(549)
**Water
Consumption
gal (l) /hr
2.3
5.7
9.0
4.7
11.3
18.0
8.2
19.8
31.5
11.7
28.3
44.9
17.5
42.5
67.4
24.5
59.5
94.4
35.1
84.9
134.8
49.1
118.9
188.7
*
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
9 | Installation
(9)
(21)
(34)
(18)
(43)
(68)
(31)
(75)
(119)
(44)
(107)
(170)
(66)
(161)
(255)
(93)
(225)
(357)
(133)
(321)
(510)
(186)
(450)
(714)
**Drain Volume
gal (l) /hr
0.8
1.9
3.0
1.6
3.8
6.0
2.7
6.6
10.5
3.9
9.4
15.0
5.8
14.2
22.5
8.2
19.8
31.5
11.7
28.3
44.9
16.4
39.6
62.9
(3)
(7)
(11)
(6)
(14)
(23)
(10)
(25)
(40)
(15)
(36)
(57)
(22)
(54)
(85)
(31)
(75)
(119)
(44)
(107)
(170)
(62)
(150)
(238)
Nortec
Nortec
Nortec
Installation | 8
Installation
10
11
12
13
14
15
Typical Humidifier Installation
Location
Mounting on Optional Stand
Ceiling Mounting (Nortec SE50 Only)
Plumbing
Boiler Steam and Boiler Condensate
Return
17 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
29
30
31
32
32
9 | Installation
Optional Outdoor Temperature Reset
CV Valve Actuator Wiring
Remote Relay Board Wiring
Staged Modulation Wiring (Nortec SETC Only)
Options and Accessories
Remote Blower Pack
Typical Humidifier Installation
SAM-e Distribution Manifold
1ft (30 cm)
Location
Mounting
Pg 11
2 in.
(5 cm)
min.
36 in. (91 cm)
Min. Top Clearance
(0 in SE 50)
Steam
Distribution
Pg 17
30 in.
(76 cm)
30 in.
(76 cm)
30 in.
(76 cm)
Min.
SE 1050
Min.
Side
Clearance
Min.
Front
Clearance
Pressurized
steam supply
1 ft (30 cm)
min.
Water supply
30-80 psig
Air gap
Plumbing
Pg 14
Boiler
Steam
Pg 15
Tank drain
1- 24 VAC
2- On/Off Loop
3- Ctrl Ground
4- Control Signal
5- Limit Signal
6- 5 VDC
7- Ground
8- Tank Blow Down
9- Ground
10- Actuator
11- Actuator
12- 0-10 VDC Out
On/Off
Controls
Controls
Pg 23
E
X
T
Dedicated
Circuit Breaker
or Disconnect
L1
N
Modulation
Controls
Ground
Condensate
return to boiler
SETC/P
EXT
S
E
T
C
/
P
Electrical
Pg 22
Figure 5: Typical Humidifier Installation
Installation | 10
Location
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.
Note:. Condensate drain line must be sloped downward to boiler condensate return.
Use pump (by others) or stand (optional) if necessary.
As Close as
Possible to Steam
Distributor
36 in. (91 cm) Min.
Top Clearance
(0 in. for SE50 only)
5-95%
Mount
Humidifier Level
30 in.
(76 cm)
30 in.
(76 cm)
30 in.
(76 cm)
Min.
SE 1050
only
Min. Side
Clearance
Min. Front
Clearance
Condensate drain
line must be
sloped down, do
not use to lift
condensate
Figure 6: Installation Location / Clearance
11 | Installation
Mounting on Optional Stand
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
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)
Figure 7: Mounting on Optional Stand
Note: The humidifier must be secured to the stand (hardware provided) and the stand
must be secured to the floor (hardware by others).
Installation | 12
Ceiling Mounting (Nortec SE50 Only)
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.
12.8 in.
(32.6 cm)
Anchor 3/8 in (M10)
support rods to ceiling
(by others)
Sloped drain
1/2 in. pipe
(by others)
Support rods and hardware
(by others) must not extend
below support bracket flange.
Figure 8: Ceiling Mounting the Nortec SE50
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
shown in Figure 6: Installation Location / Clearance.
 The Nortec SE50 weighs 180 lb (82 kg) when filled with water and without any
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.
 The humidifier cannot be used as a structural member. All piping connected to the unit
must be supported independently.
 A drain line emptying into an open drain must be connected to the ceiling kit drain pan.
Condair recommends a 1/2 in. pipe with sufficient slope to ensure any water collected in
the pan will drain from it.
13 | Installation
Plumbing
0.75 in. (19 mm). OD
un-threaded drain outlet
Connect with hose cuff
and hose clamps.
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.
*Pipe, unions, and water shut-off valve not supplied by Condair.
Figure 9: Water Supply and Drain Connection
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+2 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)
All water supply and drain line connections must be installed in accordance with local
plumbing codes.
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.
Installation | 14
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.
Boiler steam supply
line. Max 15 psi, Min 5 psi
measured at CV Valve
6 in.
(15 cm)
Max
Actuator
Boiler steam
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.
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
15 | Installation
Condair supplies a CV valve, actuator and wye strainer with each Nortec SE humidifier. The port
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.
Caution: Condensate leaves the steam traps inside the Nortec SE under slight pressure.
Steam flash could occur in the condensate drain line.


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.
Actuator
2 turns then
push in and
1/8 turn to lock
Install stem
extension
Install jam nut
and lock washer
Raise valve
stem to full up
1/2 in. (1.2 cm)
min.
Install and
tighten
mounting nut
CV Valve
Turn stem
extension
until holes
line up
Insert
connecting
pin
Tighten jam nut
against stem extension
Figure 11: CV Valve Actuator Installation
Installation | 16
Steam Lines and Condensate Returns
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.
Use Appropriate Slope
Insulate Pipe
10 Degrees
2 in.
(5 cm)
1 ft (30 cm)
2 Degrees
Steam Direction
0.5 in.
(12 mm)
1 in. (2.5 cm) pipe
insulation
1ft (30 cm)
Figure 12: Main Steam Line Requirements
Table 5: Recommended Steam Line Material
Steam Line
Material
Copper Tube
*Stainless Steel
Tube
Condair Hose
Note:
Lb/hr (kg/hr)
Steam Line Length
ft
m
Steam Line Description
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)
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
31-100 (14-45)**
<15
<4.5
***Part Number 1328820 (1 3/4”)
* 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.
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.
17 | Installation
Table 6: Maximum Recommended Length of Steam Line
Unit Size
Steam Output
50
100
175
250
375
525
750
1050
NOTE:
Steam Outlet
and Line Size
Maximum
Length
lb/hr
(kg/hr)
copper (SST)
ft
(m)
50
100
175
250
375
525
750
1050
(23)
(45)
(80)
(114)
(170)
(239)
(341)
(477)
1 1/2 (1 3/4)
1 1/2 (1 3/4)
3
(3)
3
(3)
4
(4)
4
(4)
2X 4
(4)
2X 4
(4)
37
90
90
180
180
220
260
260
(11)
(27)
(27)
(55)
(55)
(67)
(79)
(79)
Possible Loss
lb/hr/ft
0.11
0.11
0.16
0.16
0.22
0.22
0.44
0.44
Possible
Loss atLoss at
Possible
Max. Length
Max. length
lb/hr (kg/hr)
(kg/hr/m) lb/hr (kg/hr)
(0.16)
(0.16)
(0.24)
(0.24)
(0.33)
(0.33)
(0.66)
(0.66)
4
10
14
28
39
48
114
114
(2)
(4.5)
(6.5)
(13)
(18)
(22)
(52)
(52)
See Table 7 for equivalent length of common fittings.
Tube Diameter
in.
1 1/2 or 1 3/4
3
4
4
Table 7: Equivalent Length of Some Common Fittings
90 Degree
45 Degree Elbow Side Outlet Tee
Gate Valve
Elbow ft (m)
ft (m)
ft (m)
ft (m)
GlobeValve
Valve
Control
(m)
ft ft
(m)
3.5
5
8
8
34
54
80
Tee is same size
as steam line
(1)
(1.5)
(2.4)
(2.4)
1.75
2.5
4
4
(0.5)
7
(2.1)
(0.75)
11
(3.3)
(1.2)
15
(4.5)
(1.2)
15
(4.5)
0.8
(2.4)
1.1
(3.1)
1.6
1.6
(0.5)
(10)
(16)
(24)
Use a full size tee, not a 90
degree elbow for vertical
to horizontal transitions.
12 in. (30 cm)
min drop to
top of ‘P’ Trap
P Trap
min 8 in.
(20 cm)
plus duct
static pressure
‘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.
Figure 13: Condensate Traps
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.
Installation | 18
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.
Hose cuff
with clamps
Insulated copper
steam line. Support
so weight is not on
steam outlet.
1 ft (30 cm)
2 in. (5 cm)
min.
Condensate line
1 ft (30 cm)
min. before
anybend
‘P’ Trap
To drain
Use steam hose between
steam outlet and steam line.
Figure 15: SAM-e/Steam Distributor Above Humidifier (Copper Steam Line Shown)
19 | Installation
Hose will soften
over time
proper support
Is necessary
Min 12 in.
(30 cm)
radius
Support Brackets
Install Condensate Tee
Before Distributor
1 ft (30 cm)
min. Before
any bend
1 ft (30 cm)
min.
‘P’ Trap
‘P’ Trap
To drain
To drain
Figure 16: Steam Distributor/SAM-e Below Humidifier (Hose Shown)
1 ft (30 cm)
0.5 in. (1.2 cm) min.
1ft (30 cm)
min. before
any bend
Obstruction
Use full size condensate tee
at low point. Slope lines up
to “T” and immediately after it.
1 ft (30 cm)
min.
‘P’ Trap
To drain
To drain
‘P’ Trap
Figure 17: Steam Under Obstruction (Copper Steam Line Shown)
Installation | 20
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
1 ft (30 cm)
min.
Condensate
tee at low
points
Individually trap multiple condensate
returns before joining on common line.
Figure 18: Long Steam Run
21 | Installation
To Drain
Electrical
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.
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.
Nortec SETC / P Primary Power
Single Phase Supply
Ground
Ground
L1
Neutral
L1
Neutral
Dedicated circuit
breaker or fused
disconect.
E
X
T
I
N
T
Figure 19: Primary Power Connection
Installation | 22
External Controls
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.
Caution: Failure to wire the humidifier in accordance with the wiring instructions could
cause permanent damage. Such errors will void the warranty.
Control Location
10 ft min.
1
Air
Proving
Switch
2
Duct High
Limit
3
Humidity
Control
(return air
duct or
in room)
Figure 20: Control Location
1

2


Air Proving Switch
Locate so that it can sense air flow or lack of it.
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
steam is fully absorbed.
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
as a shelf can affect reading). Avoid placing near discharge diffuser of humidified air.
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.
23 | Installation
On/Off Control Wiring
Air Proving
Switch
Duct High Limit
2548732 - On/Off
Duct Humidistat
Humidity Control
2548731 - On/Off
Wall Humidistat
Humidifier Terminal Strip
Note: 1 Humidifier will run when circuit between
terminal 1 and 2 on humidifier is closed.
2 Terminal 1 is 24VAC Hot, turn unit off to
avoid shorting while wiring.
3 Digital Humidistats require 24 VAC power
from terminals 1 and 3 of humidifier.
4 Humidity Control can be wall mounted
as shown or return air duct mounted.
Knockouts provided
in top and bottom panels.
Install strain relief (by others)
Figure 21: On/Off Controls
Ground
24 VAC
Common
Digital Out
Fan Relay
Fan Relay
NTC Sensor
NTC Sensor
12345678-
Humidity Control
2548731 - On/Off Wall Humidistat or,
2548732 - On/Off Duct Humidistat
Ground
24 VAC
Common
Digital Out
Fan Relay
Fan Relay
NTC Sensor
NTC Sensor
Duct High Limit
2548732 - On/Off Duct Humidistat
Wire to make on drop in humidity
12345678-
Com
N/O
Air Proving Switch
Wire to make when
sensing air flow
OR
E S
X E
T
Connect 24 VAC ,
term inal 1 of hum id ifie r to
term inal 2 of controllers.
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
Installation | 24
Modulating Control Wiring
Air Proving
Switch
High Limit Humidistat
Control Humidistat
Humidifier Terminal Strip
Note: 1 Install On/Off controls or jumper between
terminal 1 and 2 of humidifier in order to run.
2 Terminal 1 is 24 VAC Hot, turn unit off to
avoid shorting while wiring.
3 High Limit Humidistat must be duct mounted.
It can be On/Off or modulating.
4 Control Humidistat can be mounted in space
or in return air duct and can be On/Off or
modulating.
5 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
8 - Temperature
6 - Analog Out
1 - Ground
2 - 24 VAC
1510142 - Digital Wall Humidistat
6 - Analog Out
7 - Analog In
8 - Temperature
1 - Ground
2 - 24 VAC
2520266 - Digital Duct Humidistat
Package
Insert On/Off
controls or jumper
between 1 and 2
Analog Out - 3
24 VAC - 2
Ground - 1
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
Connect 24 VAC, terminal 1 of
Nortec SETC/P to terminal
2 of controllers.
Figure 24: Digital Modulating Humidistats
25 | Installation
E S
X
T E
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)
6 - Analog Out
1 - Ground
2 - 24 VAC
6 - Analog Out
7 - Analog In
8 - Temperature
2520261 - Digital
Wall W/O Sensor
1 - Ground
2 - 24 VAC
Figure 25: Digital Wall Humidistat – Remote Wall Sensor
Connect 24 VAC, terminal
1 of SETC/P to terminal
2 of controllers.
1509858 - Wall
Sensor
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 26: Remote Wall Sensor Wiring
Installation | 26
Transducer Control Wiring (Nortec SETC Only)
Duct High Limit
1509857 - 2-10V
Duct Humidity
Transducer
Air Proving
Switch
Humidity Control
1509858 - 2-10V Wall
Humidity Transducer
Note: 1 Install On/Off controls or jumper between
terminal 1 and 2 of humidifier .
2 Terminal 1 is 24 VAC Hot, turn unit off to
avoid shorting while wiring.
3 Duct High limit can be duct humidity
transducer as shown or duct On/Off
humidistat.
4 Humidity Control can be wall humidity
transducer as shown, duct humidity
transducer, or On/Off humidistat.
Humidifier Terminal Strip
Knockouts provided
in top and bottom panels.
Install strain relief (by others)
Figure 27: Transducers
6 - Analog Out
1509858 - 2-10V Wall Humidity
Transducer
1 - Ground
2 - 24 VAC
1 - Ground
2 - 24 VAC
3 - Analog Out
1509857 - 2-10V Duct Humidity
Transducer
Insert On/Off
controls or jumper
between 1 and 2
E S
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
Connect 24 VAC ,
terminal 1 of SETC to
terminal 2 of controllers
Figure 28: Digital
27 | Installation
Optional Outdoor Temperature Reset
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.
2520263 - Outdoor Temperature
Sensor
12345678-
Ground
24 VAC
Common
Digital Out
Fan Relay
Fan Relay
NTC Sensor
NTC Sensor
2548731 - On/Off Wall Humidistat or,
2548732 - On/Off Duct Humidistat
1 - 24 VAC
2 - Temperature

OR
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.
Connect 24 VAC, terminal
1 of humidifier to terminal
2 of controllers.
E
X
T
Insert Other
On/Off
controls
in series
Figure 30: Outdoor Temperature Sensor (Modulating Control)
S
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 | 28
8 - Temperature
6 - Analog Out
1510142 - Digital Wall Humidistat or,
2520266 - Digital Duct Humidistat Package
1 - Ground
2 - 24 VAC
1 - 24 VAC
2 - Temperature
2520263 - Outdoor Temperature
Sensor
Insert On/Off
controls or jumper
between 1 and 2
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.
E
X
T
S
E
Connect 24 VAC, terminal
1 of SE to terminal
2 of controllers.
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 31: Outdoor Temperature Setback (On/Off Control)
CV Valve Actuator Wiring
Nortec
Nortec
SE 1050
Actuator
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.
Nortec SE 1050 low
voltage terminal strip
9 - Ground
Bk
R
10 - Actuator 24 VAC
Gr
11 - Actuator Ground
Y/Bk
12 - 0-10 VDC Out
SE 50 - 750 Terminal Strip
9 - Ground
R
10 - Actuator 24 VAC
11 - Actuator Ground
Bk
Y/Bk
12 - 0-10 VDC Out
Figure 32: CV Valve Actuator Wiring
29 | Installation
Remote Relay Board Wiring
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;
Error
COM
Service
NO
COM
NC
NO
Steam
NO
COM
NO
COM
NC
Unit ON
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
Installation | 30
Staged Modulation Wiring (Nortec SETC Only)



Connect up to 10 units (equivalent of 10,500 lb/hr (4,770 kg/hr)) using 18-24 AWG multistrand, 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.
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.
Note:
Do not reverse polarity.
Do not connect to pole 1 or 4.
Figure 34: Staged Modulation Wiring
31 | Installation
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.
Installation | 32
Start Up
34 Installation Check
35 Nortec SETC User Interface
35
36
37
39
40
40
40
41
42
33 | Start Up
Manual Drain Switch
Start Up Procedure
Status Screens
Condair Digital Controls
Staged Modulation (Nortec SETC Only)
LINKS 2
Condair ONLINE
Nortec SETC/P Pre-Start Up Checklist
Nortec SETC/P Start Up Checklist
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.
Min 10 ft (3 m)
2 x duct height
from fan or
transition
Calculated absorption distance
to any obstruction or 8 - 10 ft
(2.4 - 3 m) if unknown.
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
Disconnect
Correct voltage,
amps, phase
P Trap(s) with 12 in .
(30 cm) min. drop(s)
.
Boiler Steam
- Max 15 psi
- Safety valve if from
Actuator,
med. or high press.
- Opens CV Valve
boiler.
fully at 100%
- Design pressure
demand
at 100% demand.
- Closes fully at 0%.
1/2 in line min
30-80 PSI
Air gap
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).
Spec label
Not plastic drain,
Not to sink.
Mounting
- Unit level
- Service clearance
- Properly anchored
if on stand
Boiler Condensate
- Gravity fed to boiler
or lift pump
Figure 35: Installation Check
Start Up | 34
SETC User Interface
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
Manual Drain Switch
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.
Manual
drain
switch
Figure 37: Manual Drain Switch
35 | Start Up
Start Up Procedure
1 Examine the humidifier and installation for damage and or improper installation.
Warning: Damaged units or improperly installed units must not be operated. Damaged or
improperly installed units may present a danger to persons and property.
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.
Request – xx%
Idle
0 lb/hr
04/30/09 14:25:22
Security loop: Closed
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.
Menu
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.
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.
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.
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
8 The green humidifying LED on the front of the humidifier will light up and the display will
indicated “Humidifying” and the amount of steam being produced (Nortec SETC only).
Request – 100%
Idle
04/30/09
Security loop:
750 lb/hr
14:25:22
Closed
Menu
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.
Request – xx%
Idle
04/30/09
Security loop:
0 lb/hr
14:25:22
Closed
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.
Menu
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
Menu
Menu
: 100%
: 55%
: 50%
: 100%
: 70%
: 0 lb/hr
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.
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.
HUMIDIFIER
Model
Capacity
Multimode
REG Mode
Software
Press. In
Menu
37 | Start Up
: SETC 750
: 750 lb/hr
: StandAlone
: Demand
: XVXX
: 15 psi
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.
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
Menu
TANK STATUS
Fill Valve
Drain Pump
Float Level
Run Time
Serv. Time
Serv Due
: ON/OFF
: ON/OFF
5
: xxx hr
: xxx hr
: xxx hr
Menu
SENSOR INPUTS
Sec. Loop
: Closed
Tank Temp.
: Closed
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)..
Menu
FEATURES LIST
Idle Mode
FTBD
Time Prop.
BD Rate
Drain Cool
Float Check
: Idle Drain
: On/Off
: On/Off
: 25%
:On/Off/Smart
: On/Off
Menu
FEATURES LIST
Idle Mode
FTBD
Time Prop.
BD Rate
Drain Cool
Float Check
: Idle Drain
: On/Off
: On/Off
: 25%
:On/Off/Smart
: On/Off
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.
Menu
100%
0%
-4 hrs
0 hrs
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.
Demand: 45%
Menu
Start Up | 38
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 %)
Output signal is shown on
modulating controller
proportional to the demand.
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
State of On/Off humidistat
Setpoint (RH%)
Option button accesses
sensor calibration.
See troubleshooting
Increase / Decrease Setpoint
Figure 38: Modulating and On/Off Digital Control Operation
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.
39 | Start Up
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.
Start Up | 40
Nortec SETC/P Pre-Start Up Checklist
Unit Serial #:
Tag:
Unit type:
Voltage:
Customer/Job:
Address:
V/
ph Steam output:
lb/hr
Water Quality:
 Potable (0-12 grains/gal, 0-14 ppm Silica, 0-25 ppm Chlorides)  RO  DI 

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 
 Auxiliary drain connected with shut off valve 
Diameter / Size

Boiler Steam
 Boiler Pressure
psi
Pressure to humidifier
 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
 High Limit Location
Control to Terminal 4 
High Limit to terminal 5 

Power:
 Voltage, amp, fuse per Spec Label:
 Disconnect switch located close to humidifier

Inspected by:
Company:
41 | Start Up
yes 
yes 
Date of inspection:
no 
no 
/
/
psi
Nortec SETC/P Start Up Checklist
Unit Serial #:
Tag:
Unit type:
Voltage:
Customer/Job:
Address:
V/
Preliminary:
 Pre-start-up checklist completed?
ph
Steam output:
yes 
lb/hr
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:






Water supply valve opened
Boiler steam isolation valve open
Mains disconnect switched on
Turn On/Off switch on
On/Off Security loop (Terminal 1 and 2) closed.
Demand greater than 15%
Controls:
 Installed Controls Match Configuration
 Control Setpoint:
 Demand (Modulating Humidistat)
or
 Sensed RH < Setpoint (Transducer)
yes 
yes 
yes 
yes 
yes 
yes 
no 
no 
no 
no 
no 
no 
yes 
no 
High Limit Setpoint:
yes 
no 
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.
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.
Remarks:
Started by:
Date of Start Up:
/
/
Company:
Start Up | 42
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 Selecting an RH Setpoint
49 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
60 Nortec SEP Humidifier Configuration
43 | Operation
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.
DEMAND
ON
SERVICE
OFF
FAULT
DRAIN
Figure 41: SEP LED Status Lights
Operation | 44
Humidifier Schematic
Steam Line
Steam Distributor
CV Valve Actuator
‘P’ Trap
Float Chamber
Tank
Fill Box
Cooling to
Float Chamber
Dual Fill Valve
Boiler
Steam
Vacuum Break
CV Valve
Drain
Outlet
Steam Trap
‘P’ Trap /
Overflow
Heat Exchanger
Condensate
Return to
Boiler
Auxiliary Drain
Lower Mixing
Box
Drain Pump
Figure 42: Humidifier Schematic
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
humidity.
When a call is received, the humidifier will send a signal to the electric actuator. The
actuator will open as required and the flow of boiler steam will begin.
Energy from the boiler steam is transferred to the fresh water tank through a heat exchanger
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.
45 | Operation



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.
Operation | 46
Selecting an RH Setpoint
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.
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.
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
47 | Operation
Blower Pack
Blower Pack
Blower pack
condensate drain
and ‘P’ Trap
Insulate
steam lines
Balance steam
line length to all
blower packs
Provide 120 V
disconnect for
blower packs
power.
Wire blower pack safety loop
terminals in series with humidifier
safety loop.
Condensate
to drain
Oversize condensate
line to combine multiple
condensate returns
Figure 44: Remote Blower Pack
Operation | 48
Nortec SETC Humidifier Configuration
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
Screen Displays
Request – 100%
Idle
04/30/09
Security loop :
Set P
45%
45%
45 %
150 lb/hr
14:25:22
Closed
Menu
ESC
?
Press to go
down a
menu level
Press to
go left
/right one
screen
?=Press for
information
about current
warning or fault
message
Press to go
up a menu
level
S et
Press to
increase/
decrease
value
Press to
accept
setting and
go up a
level
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.
Request – 100%
Password
0335
5
Idle
04/30/09
Security loop:
30 lb/hr
14:25:22
Closed
Menu
?
Main Menu
Service Level
User Defined Settings
Control Settings
Diagnostics
Menu
49 | Operation
Set
Enter Code
Confirm with Set
Menu
Set
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.
Service Level
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 Level
Service
500
Service Reminder
Reminder ::500
Tank Drain
Tank PreClean
Reset Error History
Reset Serv. Reminder
Menu
Set
Service Reminder
500 hr
500
500hr
Menu
Set
Tank Drain
If the yes button is pressed the
controller activates the drain pump
and empties the tank.
Interrupt Operation
Tank Drain
Menu
Yes
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)
No
Set
Tank Pre Clean
Interrupt Operation?
Preparation for regular maintenance
to remove loose scale that may be
present in the tank.
Tank PreClean
(This Operation
Can Take >1 hr)
Menu
Yes
No
Set
Reset Error History
Reset Error History
Menu
Yes
No
Set
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.
Reset Serv. Reminder
Reset Serv. Reminder
Menu
Yes
No
Set
Operation | 50
User Defined Settings
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.
User Defined Settings
Drain
: On
Drain Cool
Cool
Off
BD Rate
: 25%
FTBD
: Off
FTBD Time
: Off
FTBD Hours
: 100
Idle Mode
: Idle Drain
Idle Time
: 72 hr
Fill Corr
: 100%
Drain Corr
: 100%
: 23:30
Float Ck
Date
: 06/27/09
: 13:22
Time
: lb/hr
Unit
: English
Language
: 10
Contrast
: Off
Leak Ck
Drain Cool
On
Off
On
Smart
Menu
Set
Set
Menu
Blowdown Rate
Sets the amount of water as a
Blowdown Rate
25%
BD Rate
: 25%
Menu
Set
Full Tank Blowdown
Off
On
On
FTBD
: Off
Menu
Set
Hour
Hour
23
23
Set
Set
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)
FTBD Hours
100
100
FTBD Hours
: 100f
Menu
51 | Operation
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)
interrupting humidifier operation
during critical times. (Default =
23:30)
: Off
Menu
will be drained to control mineral
concentration in the tank. (Default –
25%)
FTBD Time
Sets the time of day when a full tank
FTBD Time
FTBD Time
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)
(User Defined Settings Continued)
Idle Mode
Sets what the humidifier will do
Idle Mode
Idle Drain
Idle Mode
: Idle Drain
Idle Drain
Keep Warm
Menu
Set
Idle Time
Sets the time without demand before
the Idle Drain function will drain the
tank (if activated). (Default = 72 hr)
Idle Time
72 hr
72
hr
72 hr
Idle Time
: 72 hr
Menu
Set
Fill Correction
Increases or decreases the length of
fill valve pulses to compensate for
abnormal site conditions. (Default =
100%)
Fill Correction
100 %
100
100 %
%
Fill Corr
: 100%
Menu
Set
Drain Correction
Increases or decreases the length of
Drain Correction
100%
Drain Corr
: 100%
100 %
site conditions. (Default = 100%)
Menu
Float Ck
Hour
Minute
Float Ck
Set
23
30
: 23:30
Menu
Date
Day
Month
Date
Set
27
06
: 27/06/09
Menu
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)
Set
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.
Operation | 52
(User Defined Settings Continued)
Time
Hour
Minute
Time
13
22
: 13:22
Menu
Unit
: lb/hr
: English
Unit
Sets the units of measure to use for
display of steam output to either
lb/hr or kg/hr. (Default = lb/hr)
Unit Steam
lb/hr
lb/hr
kg/hr
Menu
Language
Set
Set
Language
Sets the language to use for the
software menu. (Default = English)
Language
English
English
French
Dutch
German
Menu
Set
Contrast
Adjusts the contrast of the LCD
display to improve visibility under
different lighting conditions. (Default
= 10)
Contrast
10
Contrast
10
10
Menu
Leak Ck
: Off
Set
Leak Check
Off
Off
On
Menu
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.
Set
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.
CAUTION: Improper control configuration can result in over humidifying which can
result in damage to property.
53 | Operation
(Control Settings Continued)
Control Setting
Source
: Analog
REG Mode
: Demand
MOD Mode
: Dual CH
Multi Mode
: Standalone
CNT Type
: 0-10
LIM Type
: 0-10
Short CD
: On
Short CD Tm
: 30 s
Time Prop.
: Off
Manual Cap
: 100%
Mulit Unit Op Range
Modbus Settings
Press Base
: On
Supply Press.
: 15 psi
RH Settings
Menu
Only present if Mod Mode set to Dual CH
Only present if Short CD set to On
Only present if Multimode set to Master or Slave
Only present if Press Base set to On
Only present if REG Mode set to RH (P) or RH (PI)
Set
Source
Configures the humidifier to either
accept analog control signals from a
humidistat or digital signals from a
Building Management System
Source
Analog
Analog
Digital
Menu
REG Mode
: Demand
Set
REG Mode
Configures the type of control used
Regulation Mode
Demand
Demand
On/Off
RH (P)
RH (PI)
Menu
Set
MOD Mode
Configures the humidifier to either
MOD Mode
Single CH
Single CH
MOD Mode
: Single CH
Menu
Set
: Standalone
Slave
Menu
(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
Multi Mode
StandAlone
Standalone
StandAlone
Multi Mode
proportional only internal control
based on a transducer signal. RH
(PI) is proportional control with an
integral.
Set
humidifier of a group controlled by a
single control signal / transducer
signal. See Multi Unit Op. Range
later in this section. (Default =
Standalone)
Operation | 54
(Control Settings Continued)
CNT Type
: 0-10
CNT Type
Configures the Volt or amp range of
the control signal connected to the
humidifier
CNT Type
0-10 V
0-5 V
1-5 V
0-10
V
0-10V
2-10 V
0-16 V
32-16 V
0-20 mA
4-20 mA
Menu
Set
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.
LIM Type
0-10 V
0-5 V
LIM Type
: 0-10V
0-10
0-10VV
2-10 V
0-16 V
3.2-16 V
Menu
Set
Short Cycle Delay
Sets whether the humidifier must
Short Cycle Delay
Off
Off
Short CD
: Off
Menu
Set
Short CD Tim
Specifies the minimum time the
Short Cycle Delay Time
30 s
Short CD Tm
: 30 s
30 s
Menu
Set
: Off
Menu
Set
Manual Capacity
100%
Manual Cap
: 100%
100%
100%
Menu
55 | Operation
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
Time Proportioning
Off
Off
Time Prop.
by the Short CD Tim parameter)
whenever demand falls below the On
threshold to prevent short cycling.
(Defualt = Off).
Set
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%)
(Control Settings Continued)
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.
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 sets the system demand at
Multi Unit Op. Range
Multi Unit Op. Range
Full Out
Zero Out
Menu
Modbus Settings
: On
its full capacity. Zero Out sets the
system demand at which the
humidifier should shut off.
Set
Modbus Settings
Parity
Parity
: Even
Timeout
Rem Disable
: 300 s
: On
Menu
Press. Based
: 20%
: 0%
Set
Pressure Based
On
Off
On
Menu
Set
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.
Operation | 56
(Control Settings Continued)
Supply Pressure
15 psi
Supply Press.
: 15 psi
15 psi
Menu
Set
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)
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).
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.
RH Settings
CNT
CNT Set-P
Set-P
CNT Band
CNT Itime
LIM Set-P
LIM Band
LIM Damp
RH Alerts
RH High
RH Low
RH Settings
:: 40%
40% RH
: 15% RH
: 5 min
: 80% RH
: 15% RH
:5s
: On
: 75% RH
: 33% RH
Menu
: 40%
40% RH
Menu
Set
: 15% RH
15% RH
Menu
humidifier will modulate between 0
and 100% output. (Default = 15%)
Set
Int Time should not normally be
changed. Int Time adjusts the
Control Integral Time
5 min
CNT Itime
: 5 min
5 min
Menu
57 | Operation
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
Control Band
15% RH
CNT Band
Only present if RH Alerts is set to On
Set
Control Set Point
40% RH
CNT Set-P
Only present if MOD Mode is set to Dual CH
Set
corrects for proportional control error.
It is only displayed if REG Mode
is set to RH (PI) (Default = 5 min)
(RH Settings Continued)
LIM Set-P
Sets the duct high limit setpoint
Limit Set Point
80% RH
LIM Set-P
: 80%
80% RH
Menu
Set
LIM Band
Should not normally be changed. The
Limit Band
15% RH
LIM Band
: 15% RH
15% RH
Menu
Set
: 15% RH
5s
Menu
band before output is throttled down.
(Default = 5 s)
Set
RH Alerts
Sets whether the humidifier will
RH Alerts
On
On
RH Alerts
above or falls below configured
limits. (Default = Off)
: On
Menu
Set
RH High
Sets the RH level above which the
RH High
75% RH
RH High
: 75%
75% RH
Menu
is generated. Warning is only
generated if RH Alerts is set to on.
Set
RH Low
Sets the RH level below which the
RH Low
33% RH
RH Low
: 33% RH
within which the humidifier will
throttle down the humidifier output
from 100 to 0%. (Default = 15%)
Limit Damping
Sets the number of seconds the
Limit Damping
5s
LIM Damp
the high limit the output of the
humidifier will be throttled back to
prevent wetting the duct. (Default =
80%)
33% RH
Menu
is generated . Warning is only
generated if RH Alerts is set to on.
Set
Operation | 58
Diagnostic Menu
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.
Diagnostic Menu
Fault History
Service History
Output Test
Remote Test
Menu
Fault History
04.14.07 21:48
03.20.09 02:35
Set
Menu
E19A
E19A
Set
Service History
Displays a list of service that has
been performed on the humidifier. It
displays the date and time of service.
Service History
04.21.07 09:10
03.21.09 10:10
Service History
Menu
Set
Output Test
Output Test
Inlet Valve:
Off
Menu
Set
Remote Test
Remote Test
Steam Relay:
Off
Menu
59 | Operation
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.
Set
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.
SEP Humidifier Configuration
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
J11 to J18
Jumper
J10
Figure 46: Nortec SEP Control Board Jumpers
Caution: Never adjust jumpers other than those listed in this section. Other jumpers are
factory set and must not be changed.
Blowdown Adjustment
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).
25%
0%
50%
Note: 0% blowdown should never be used even with Deionized
water. Minimum recommended setting is 5%.
Operation | 60
On/Off or Modulating Control (J10)
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
Resulting Control
J11
J12
J13
SEP 50/100
SEP 175
SEP 250
SEP 375
SEP 525
SEP 750
SEP 1050
0
1
0
1
0
1
1
0
0
1
1
0
0
1
0
0
0
0
1
1
1
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
Resulting Control
J14
J15
No Full Tank Blowdown
96 hours between FTBD
48 hours between FTBD
24 hours between FTBD
1
0
1
0
1
0
0
1
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.
61 | Operation
Table 10: Control Jumper Configuration
Resulting Control
J10
J16
On/Off
Modulating 0-10 VDC or 0-20 mA
Modulating 2-10 VDC or 4-20 mA
1
0
0
No Affect
0
1
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.
Operation | 62
Maintenance and
Servicing
64 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
69 Maintenance Shutdown and Extended
Shutdown
70 Nortec SETC/P Maintenance Checklist
63 | Maintenance and Servicing
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).
Warning
When the software determines that
the service timer has elapsed it first
Request – 68%
Warning
HMW - Humidifier Maintenance
Service LED On
+
HMW - Humidifier
Maintenance
=
Service timer has
expired and humidifier
needs maintenance
Humidifying
04/30/09
Security loop:
134 lb/hr
14:25:22
Closed
Menu
?
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.
+ 200 Hours
Request – 68 %
Fault
HMF - Humidifier Maintenance
Fault LED On
+
HMF - Humidifier
Maintenance
=
Service timer + 200 hours
has passed. Maintenance
must be performed.
Humidifier has
shut down.
Fault
04/30/09
Security loop:
Menu
34 lb/hr
14:25:22
Closed
?
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
Maintenance and Servicing | 64
Maintenance Schedule
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
Item
Tank
30 Days
After
Start-up

When
Service
Light is
Lit

End of
Season
What to Do

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.

1. Remove float chamber, and float chamber lid.
2. Clean any scale deposits from walls and float
magnets.
3. Re-install magnets.

1. Inspect for dust and dirt build-up.
2. Blow clean with compressed air.
Float Chamber

Heater System

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)
65 | Maintenance and Servicing
Cleaning the Tank
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.
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.
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
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 Cover
Front Maintenance Door
procedure
the next
section.
Figure 48:inTank
Access
For Cleaning
Maintenance and Servicing | 66
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
F&T Trap
Union
Heat Exchanger
Figure 49: Heat Exchanger Removal
67 | Maintenance and Servicing
Heat Exchanger Locknuts
Apply anti seize compound
to remove.
Do not crush gasket.
Max. 5 in-lb torque
Cleaning the Float Chamber
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.
Caution: Do not reverse
float chamber
hoses
To tank
To fill valve
Squeeze tabs
to remove assembly
from humidifier
Figure 50: Float Chamber Cleaning
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.
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.
Maintenance and Servicing | 68
Maintenance Shutdown and Extended Shutdown
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.
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.
69 | Maintenance and Servicing
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:
Maintenance and Servicing | 70
Troubleshooting
72 Organization of Troubleshooting Chapter
72
Troubleshooting Requirements
73 General Troubleshooting
73
Humidifier
74
Steam Distributors
74
Nortec SAM-e
75
Blower Pack
75
Digital Humidistat
76 Nortec 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
71 | Troubleshooting
Organization of Troubleshooting Chapter
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.
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.
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.
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.
Troubleshooting | 72
General Troubleshooting
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
Symptom
Nothing happens when On/Off
switch is turned on.
Cause
Corrective Action(s)
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.
Humidifier will not humidify or
not reaching RH setpoint
3 Step Down Transformer not
outputting 24VAC
3 Replace the transformer
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
2.
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
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..
(For units configured for dual
channel operation).
Humidifier has faulted or has
a warning
73 | Troubleshooting
5 Capacity has been manually
limited
5 Check Manual Capacity on status
screens. Adjust “Manual Cap” in the
“Control Setting” menu if necessary.
1 Software has detected an
abnormal condition
1 Refer to Table 13troubleshooting
warnings and faults.
Steam Distributors
Symptom
Distributor spitting out water
Condensation in duct
Cause
Corrective Action(s)
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.
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.
SAM-e
Symptom
Nortec SAM-e spitting out water
Cause
Corrective Action(s)
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.
Troubleshooting | 74
Symptom
Nortec SAM-e Grommet leaks
Cause
Corrective Action(s)
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
Blower Pack
Symptom
Blower not operating
Cause
1 No power to blower pack
Corrective Action(s)
1a Check power connection.
1b Check blower pack fuses
Note: Blower pack does not
come on unless the humidifier
is producing steam.
2 On/Off Thermostat not closing
2 Check wiring to thermostat replace if
it does not close when it is exposed
to steam.
Digital Humidistat
Symptom
Humidistat Reading incorrectly
75 | Troubleshooting
Cause
Corrective Action(s)
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.
Nortec SETC Warnings and Faults
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
Code
CLF
DCF
Display
Message
Clock Fault
Drain Ck Fault
LED
Red
Red
System Detected
Controller
system clock
failure.
The drain pump
is activated but
water level has
not decreased
Cause
Corrective Action(s)
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.
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.
Troubleshooting | 76
Code
Display
Message
LED
System Detected
DCF
Cause
3 Floats stuck
(Cont)
Corrective Action(s)
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.
77 | Troubleshooting
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.
Code
FLF
Display
Message
Float Level
LED
System Detected
Red
More than one
Float Level is
registering at the
same time
FLF
(Cont)
Red
FTF
The fill valve has
been active for
an extended
time without
reaching level 1.
Fill Fault /
Warning
FTW
Cause
Corrective Action(s)
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.
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.
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.
Red
HMF
Maint. Fault /
Warning
Yel
HMW
KWF
Keep Warm
Fault
Red
The Humidifier
Maintenance
interval and 72
hour window for
cleaning has
expired
The preset
service interval
time has
expired.
1 Humidifier requires
maintenance
1 Perform humidifier
maintenance as
described Maintenance
Schedule on page 65
2 Service reminder not
reset after
maintenance
2 Reset service reminder
as described in Reset
Service Reminder on
page 50
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.
Troubleshooting | 78
Code
Display
Message
LED
System Detected
Cause
2 No steam supply to
humidifier.
KWF
(Cont)
Corrective Action(s)
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.
Float level has
dropped multiple
times while no
steam is being
produced.
Leak Fault /
Warning
LKW
MEM
MTW
3a Check that F&T trap is
allowing condensate to
drain.
1 Steam leaking through
CV valve
1a CV valve actuator not
adjusted. Follow Figure
11: CV Valve Actuator
Installation on page 16.
Red
LKF
LMI
3 Condensate not
draining from heat
exchanger.
Limit signal
Is not stable.
Limit Instable
Flash R/W Fault
ModBus
Timeout
79 | Troubleshooting
Red
Controller
Memory failure
No Modbus
signal
1a CV valve defective.
Replace CV valve.
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.
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
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.
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.
Code
Display
Message
LED
System Detected
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.
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)
The unit has
been remotely
disabled through
modbus
communication
or Nortec
Online.
The measured
RH is above the
RH High alarm
setting.
1 Network signal
received by humidifier
to shut down.
1 Normal operation for
humidifier on network
control Contact
network administrator
to enable humidifier.
1 Setpoint higher than
RH alarm setting
1 If the humidifier is still
operating then check
and adjust setpoints.
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.
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.
(Cont)
No Signal
Warning
RDW
Remote
Disabled
RHW
Rh High
Warning
RLW
RMW
Rh Low
Warning
Rh Limit
Warning
Corrective Action(s)
3 Humidifier configured
for Modbus but not
connected to network
MTW
NSW
Cause
The measured
RH is below the
RH Low alarm
setting.
Operation is
interrupted until
an input higher
than 3% is
received.
Troubleshooting | 80
Code
Display
Message
LED
System Detected
Cause
5 Humidifier control
configuration incorrect
5 Check that the
humidifier control
configuration matches
the installed sensor
output.
1 Tank temperature
sensor not detecting
warm tank.
1b Check tank to see if hot
(caution).
Red
TCF
Corrective Action(s)
1a Check wiring to tank
temperature sensor.
1c Check if sensor closed
when tank is hot.
Tank Cold Fault
The tank has not
become hot with
the steam valve
activated.
2 No steam supply to
humidifier.
2b Check if boiler steam is
available.
2c Check if CV valve opens
using diagnostic output
test.
TCW
3 Condensate not
draining from heat
exchanger.
81 | Troubleshooting
2a Check that isolation
valve is not closed.
3a Check that F&T trap is
allowing condensate to
drain.
Nortec SEP Faults
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
Number of
Flashes / Fault
System Detected
Cause
1 Internal drain
blocked
One Flash
Humidifier Drain
Fault
Two Flashes
Humidifier Fill
Fault
Four Flashes
Inconsistent
Float Level
Floats have
indicated water
level not changing
in sequence.
Check if water drains from unit when drain
manually activated. If not then;
1a Check restrictor in drain line immediately after
pump for blockage.
Water level is not
dropping when
pump is activated.
Water level not
rising or not
detected.
Corrective Action(s)
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.
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.
1 High cooling
flow into float
chamber
1a Check that orifice in fill valve is in place. Flow
should be very low.
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.
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.
Troubleshooting | 82
Nortec SETC Wiring Diagram
Figure 51: SETC Wiring Diagram
83 | Troubleshooting
Nortec SEP Wiring Diagram
Figure 52: SEP Wiring Diagram
Troubleshooting | 84
Spare Parts
85 | Spare Parts
Distributor Spare Parts
Figure 53: Distributor Exploded View and Spare Parts
Spare Parts| 86
Nortec SETC/P 100 – 1050 Plumbing Parts
4
5
3
8
9
10
6
2
19
7
18
11
15
1
14
13
16
17
12
Figure 54: SETC 100-1050 Plumbing Parts
87 | Spare Parts
Table 9: Nortec SETC/P 100-1050 Plumbing Parts List
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Description
Part No.
100
175
250
375
525
750
1050
Cover Plate Assy.
O-ring, Clean Out Port
O-ring, Clean Out Port,
Cover Plate, Clean Out Port
Fill Box Assy.
Lower Mixing Box
Drain Pump 24v 60 Hz
Vacuum Break Valve 1/2"
NPT
P-Trap
Dual Fill Valve 10.0 l/min &
0.35 l/min
Dual Fill Valve, 17.0L/Min
& 0.35L/Min
Auxiliary Drain Termination
Steam Trap, 15psi
Float Board
Float Chamber Mounting
Bracket
Float Chamber
O-ring, Heat Exchanger,
Large
O-ring, Heat Exchanger,
Mini
Heat Exchanger Kit, Single
Heat Exchanger Kit, Mini
Modulating Actuator 0-10
VDC
Modulating Actuator 0-10
VDC, 2.5 Val
Valve 3/4 in. CV 5.5
Valve 1 in. CV 10.0
Valve 1 in. CV 12.0
Valve 1.25 in. CV 20.0
Valve 1.5 in. CV 28.0
Valve 2.0 in. CV 40.0
Valve 2.5 in. CV 65.0
2544439
2524361
2524361
2547539
2526152
1506749
1502644
1505959
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2526521
1505759
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1508581
1506925
1508849
2511137
1113777
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
1
1
1
3
1
1
1115933
2524403
1
1
1
1
1
1
1
2
1
2
1
3
2524405
1
1
2581131
2581132
1507549
1
1
2
2
3
1
1
1
1
1
1
1
1
1508472
1594322
1594324
1594332
1594341
1594350
1594360
1508473
1
1
1
1
1
1
1
1
Spare Parts| 88
Nortec SETC/P 100 – 1050 Cabinet and Electrical Parts
15
14
16
13
12
3
4
5
5
11
9
2
10
6
7
1
8
17
Figure 55: Nortec SETC/P 100-1050 Cabinet and Electrical Parts
89 | Spare Parts
Table 10: Nortec SETC B+/P 100 – 1050 Cabinet and Electrical Parts List
Item
1
2
3
Not
Shown
4
Not
Shown
5
6
Not
Shown
7
8
9
10
11
12
13
14
15
16
17
Description
Part No.
100
175
Service Door, Mini
Service Door, Single
Service Door, Double
Service Door, Triple
Recessed Handle,
Kit Processor Board SE
2523709
2524402
2524401
2523704
2523444
2553861
1
1
Cable , 40 Pin Ribbon
2537230
1
Panel Processor Display,
2544253
1
Membrane, Nortec
1509735
1
2522489
1
2550184
1
Cable, 10pin Ribbon
2522062
1
PCB Driver Board
Transformer,120/240V,
24V,150VA
Door, Front, GS-SE
Panel, Electrical Cabinet
Panel, Elec. Bottom
Panel, Rear Elec.
Panel, Tank Rear
Panel, Elec. Top
Panel, Top Tank
Panel, Left,
Base Assembly
2535504
1
2532672
1
Switch Rocker DPST
10A-250V
Remote Fault Indication
Board SETC
1
1
2523597
Reference - Contact Factory
Reference - Contact Factory
Reference - Contact Factory
Reference - Contact Factory
Reference - Contact Factory
Reference - Contact Factory
Reference - Contact Factory
Reference - Contact Factory
250
375
1
1
1
1
1
525
750
1
1
2
2
1050
1
2
1
Spare Parts| 90
Nortec SETC/P 50 Plumbing Parts
1
10
12
11
13
9
8
14
15
18
17
16
2
7
19
3
5
4
6
Figure 56: Nortec SETC/P 50 Plubming Parts
91 | Spare Parts
Table 11: SETC B+/P 50 Plumbing Parts
Item
Description
Part No.
Qty
1
Tank Replacement Kit, SE50
2520458
1
2
Heat Exchanger Replacement Kits, SE50
2520460
1
3
Gasket, Tank/H.E. Assembly, SE50
1510179
1
4
F&T Trap Assembly, with Plumbing, SE50
1500181
1
5
Float Chamber Assembly, with Board and
Connections, SE50
2520239
1
6
Float Board
2511137
1
7
Bracket, Float Chamber Mount, SE50
2520240
1
8
5 Cover Plate Kit, Clean Out Port, SE50
2520461
1
9
Gasket, Clean Out Port, SE50
1510180
1
10
P Trap Mount Assembly, SE50
2520137
1
11
Dual Fill Valve, 5.5L -.35 L/Min
1704234
1
12
Fill Box Assembly with Connections, SE50
2520235
1
13
Vacuum Break Valve 1/2" NPT
1505959
1
14
Termination Assembly with Connections, SE50
2520236
1
15
P Trap Assembly, Complete, SE50
1510187
1
16
Pump Drain, 24VDC, 60HZ (DPS 25-119)
1502644
1
17
Auxiliary Drain Termination
1506925
1
18
Modulating Actuator 0-10 Vdc
1507549
1
19
Valve 1/2in CV 2.80 / VB7263
1594316
1
Spare Parts| 92
Nortec SETC/P 50 Electrical and Cabinet Parts
8
18
17
16
Nortec SETC Electrical
NortecSEP Electrical
1
7
1
2
7
12
3
6
9
9
13
5
6
4
10
11
14
15
Figure 57: Nortec SETC/P 50 Electrical and Cabinet Parts
93 | Spare Parts
10
11
Table 12: Nortec SETC B+/P 50 Electrical and Cabinet Parts
Item
Description
Part No.
Qty
1
Panel Assembly, Electrical Front, Cabinet SE50
2520268
1
2
Kit Processor Board SE
2553861
1
Cable, 40 Pin Ribbon
2537230
Panel Assm, Display, Cabinet, SE 50 B+
2552793
1
4
PCB Driver Board
2535504
1
5
Remote Fault Indication Board SETC
2550184
1
Cable, 10 pin Ribbon
2522062
Switch Rocker DPST 10A-250V
2522489
2
7
Bracket Assm, Keypad Mnt, SE50
2520272
1
8
Enclosure, Transformer, Cabinet, SE50
2549857
1
9
Transformer,120/240Vpri,24Vsec,150VA
2532672
1
10
Terminal Block 2 Pole
1473002
1
11
Ground Clamp
1323020
1
12
Switch DPDT ON/OFF/DRAIN SETC/SEP
2538961
1
13
SEP Display / Keypad Assembly, SE50
2520279
1
14
SEP, Led Board Assembly
1508619
1
15
SEP Control Board
1508577
1
16
Panel Access, Elect Right, Cabinet, SE50
2520283
1
Panel,Access,Electrical Front SE 50 B+
2552792
1
Panel Access, Elect Front, Cabinet, SE50
2520270
1
Panel, Access, Tank Front, Cabinet, SE50
2520267
1
Not
Shown
3
Not
Shown
6
17
SETC
17
SEP
18
1
1
Spare Parts| 94
95 | Warranty
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.
Warranty | 96
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: [email protected] WEBSITE: www.condair.com
Certificate No. 002419
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