Condair HumiLife RH Series User manual

Installation Manual
Condair HumiLife – The proven steam solution
Condair RH
READ AND SAVE THESE INSTRUCTIONS
2594947_B_EN_2005_Condair-RH_IM
Humidification and Evaporative Cooling

Cautions and Warnings
Cautions and Warnings |22594947_B_EN_2005_Condair-RH_IM Condair RH
CAUTION: Servicing
nThe unit is mains powered. Disconnect main power before any servicing.
nElectrical compartment contains high voltage components. Access should be limited to authorized personnel only.
nThe unit is hot. Wait for the unit to drain and cool before servicing. During and following operation of the humidifier,
the steam and components in contact with the steam such as the steam lines, steam distributors, and condensate
lines can become hot and can burn if touched.
nCondair does not accept any liability for installations of humidity equipment installed by unqualified personnel, or the
use of parts, components, or equipment that are not authorized or approved by Condair.
CAUTION: Electrical
nAll electrical work should be done according to all applicable local and national codes.
nElectrical connection to be performed by a licensed electrician.
CAUTION: Plumbing
n(Recommended) Plumbing to be performed by a licensed plumber.
nDrain water from the humidifier can be very hot. Drain to an appropriate floor drain.
nAll plumbing work should be done according to local plumbing code.
CAUTION: Installation
nDo NOT mount in area where freezing can occur.
nDo NOT mount on vibrating surface.
nDo NOT mount on the floor.
nDo NOT block the steam outlet.
n(Recommended) Install an air proving switch.
nDo install steam lines to prevent any restrictions that may cause back-pressure in the humidifier.
nEnsure furnace fan is operating while the humidifier is generating steam.

Contents
Condair RH 2594947_B_EN_2005_Condair-RH_IM Contents |3
Cautions and Warnings 2
Contents 3
Receiving and Storage 4
Inspection 4
Storage, Packaging, and Transportation 4
Product Overview 5
Description 6
Principle of Operation 6
Specifications 7
Dimensions 7
Installation Instructions 8
Installing the Steam Distributor 10
Mounting the Humidifier 12
Installing the Steam Line 14
Installing the Condensate Return 15
Water Supply Connection 16
Drain Connection 17
Electrical Connection 18
Controls 19
Connecting to Condair HumiLife 21
Downloading Condair HumiLife 21
Connecting to Condair HumiLife 21

Receiving and Storage
Receiving and Storage |42594947_B_EN_2005_Condair-RH_IM Condair RH
Inspection
After receiving the shipment, inspect the goods as follows:
lInspect the shipping boxes for damage. Report any shipping box damages to the shipping
company without delay.
lCheck the goods against the packing slip to ensure that all items have been delivered. Report
any shortages to Condair within 48 hours of receipt of the goods. Condair does not assume
responsibilities for any shortages beyond this period.
lUnpack the parts/components and check for any damage. If parts/components are damaged,
notify the shipping company immediately.
lVerify the model type on the specification label to ensure that it is suitable for your installation.
Storage, Packaging, and Transportation
Storage
Store the Condair HumiLife RH in its original packaging inside a protected area that meets the following
requirements until it is installed, or if it needs to be stored for an extended period of time:
lRoom temperature: 41 to 104 °F (5 to 40 °C)
lRoom humidity: 10 to 75% RH (non-condensing)
Transportation
For optimum protection always transport the unit and components in their original packaging.
Packaging
Keep the original packaging of the unit/components for later use.
If the packaging needs to be disposed, observe local regulations on waste disposal. Please recycle
packaging where possible.

Product Overview
Condair RH 2594947_B_EN_2005_Condair-RH_IM Product Overview |5
56
7
1
2
3
4
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Figure 1 - RH Humidifier Components
1. Plumbing door
2. Gasket, steam distributor
3. Steam distributor
4. Electrical door
5. Steam hose
6. Steam hose clamp
7. Steam cylinder
8. Steam receptacle
9. Gasket, steam cylinder
10. Driver board
11. Plumbing cover
12. Condensate return cap
13. Fill cup
14. Hose clip
15. Water supply hose
16. Overflow hose
17. Drain hose
18. Drain pan
19. Drain valve
20. Fill valve
21. Adapter, quick connect

6|Product Overview 2594947_B_EN_2005_Condair-RH_IM Condair RH
Description
The Condair HumiLife RH is a residential steam humidifier designed by Condair. It is designed to
provide steady, clean humidification for the home, and is designed to connect to a supply air duct. The
humidifier may be mounted directly onto the duct, or remotely with connected steam hoses and
distributor.
Figure 2 - RH Humidifier Duct and Remote Installations
Principle of Operation
The Condair HumiLife RH is an atmospheric steam generator that uses heat generated by an electrical
current flowing between submerged electrodes to generate steam.
VAC
L1
L2
L1: higher amp draw when
more of the electrode is
submerged
L2: lower amp draw when
volume of water decreases
Figure 3 - Principle of Operation
Increasing the water level submerges the electrodes. This increases the current draw at the electrodes.
Increasing the concentration of minerals in the water increases the current draw of the electrodes.
Increasing the current draw increases steam production.
High concentration of minerals in the water over time forms scale on the electrodes. This reduces the
effective area for the electrodes and reduces steam output. To maintain the desired current draw, the
cylinder automatically fills with water (submerging more of the electrode), or allows the water to boil off.

Specifications
Table 1: Specifications
Model
Nominal
Capacity
gpd / kg/h / lb/h
Voltage
V
Power
kW
Current
A (MCA)
Phase
Freq.
Max Ext
Fuse
A (MOCP)
Condair RH -
NAP, 22
11 / 1.8 / 3.9
19 / 3.0 / 6.7
22 / 3.6 / 7.8
110-120
208
220-240
1.4
2.5
2.9
12.0 Phase 1,
50/60 Hz 15
Dimensions
265 mm
1 in
0.3 in
0.8 in
0.25 in
1 in
5.5 in
20.3 in
18.4 in
10.4 in
7.7 in
4.1 in
3.2 in
17.5 in
3.9 in
5.3 in
8.7 in
14.0 in
4.7 in
5.4 in
7.3 in
6.1 in
2.6 in
2.6 in
25 mm
8 mm
20 mm
6.35 mm
25 mm
141 mm
467 mm
515 mm
98 mm
444 mm
81 mm
104 mm
134 mm
220 mm
120 mm
136 mm
357 mm
195 mm
155 mm
186 mm
65 mm
65 mm
Ø
Ø
Ø
Ø
Ø
Figure 4 - Dimensions
Condair RH 2594947_B_EN_2005_Condair-RH_IM Product Overview |7

Installation Instructions
Installation Instructions |82594947_B_EN_2005_Condair-RH_IM Condair RH
1
2
3
4
5
6
7
8
Figure 5 - Installation Overview (Furnace)
1. Steam distributor
2. Water shut off valve (not supplied)
3. On/Off wall humidistat *
4. Relative humidity (RH) duct sensor *
5. Electrical disconnect switch (not
supplied)
6. Drain (not supplied)
7. High limit sensor (optional)
8. Fan enable/activation
* only an on/off humidistat (not supplied) OR RH sensor (supplied) should be installed.

1
2
3
4
5
6
Figure 6 - Installation Overview (HRV)
1. Steam distributor
2. Water shut off valve (not supplied)
3. Relative humidity (RH) duct sensor *
4. On/Off wall humidistat *
5. Drain (not supplied)
6. Electrical disconnect switch (not
supplied)
* only an on/off humidistat (not supplied) OR RH sensor (supplied) should be installed.
Condair RH 2594947_B_EN_2005_Condair-RH_IM Installation Instructions |9

10 |Installation Instructions 2594947_B_EN_2005_Condair-RH_IM Condair RH
Installing the Steam Distributor
The Condair HumiLife RH can be installed directly onto the duct system or remotely, with the installation
of a steam distributor (including steam lines) to the duct. The installation of the steam distributor (and
steam line) will determine the appropriate location for mounting the humidifier.
Condensate returns to the unit via steam line. In some cases, a separate condensate line from the
steam distributor may be required. The condensate line would connect to the top of the fill cup inside
the unit, or to a high temperature condensate pump.
Location and Clearances (remote installation)
Vertical ducts:
lPlace the steam distributor half-way between sides of the duct. Ensure the air flow and the
steam distributor openings are directed upwards.
lMinimum duct width: 8 in (204 mm).
Horizontal ducts:
The steam distributor can be installed on the side of the duct.
lWhen installed at the side of the duct, ensure that the distributor is located at least 2/3 duct-
height from the top.
lMinimum duct height: 8 in (204 mm).
1.2 in
30 mm
Ø
1.2 in
30 mm
Ø
2/3
1/2
≥ 8 in (204 mm)
≥ 8 in (204 mm)
Installing the Steam Distributor:
1. Find a suitable location for the steam distributor. Create a 1.18 in (30 mm) hole in the duct.
lFor horizontal ducts, cut the hole at roughly 2/3 of duct height, from the top.
lFor vertical ducts, cut the hole halfway between the two sides of the duct.
2. Place a gasket (supplied) over the steam distributor and insert the distributor into the duct.
Ensure the gasket is placed between the distributor and duct, and ensure that the arrows on the
distributor are pointing up. Secure the distributor to the duct with self-tapping screws.

B
D
D
C
F
A
B
C
E
A
B
CD
A
B
C
D
(1) (2) (3)
Figure 7 - Considerations for the Steam and Condensate Line (Remote Installations)
1. Typical installation
2. Distributor less than 20 in (500 mm)
above humidifier.
3. Distributor less than 20 in (500 mm)
above humidifier, with obstruction.
A. 6 in (150 mm) rise before bends.
B. Condensate traps below the
condensate outlet on the steam
distributor, min. 12 in (300 mm).
C. Steam line shorter than 15 ft (4.5 m).
D. Condensate traps have a min. height of
6 in (150 mm).
E. Wall, or other obstacle.
F. Condensate line, at lowest point,
connected to T-connector.
Considerations when installing the steam distributor:
lDo NOT exceed the maximum recommended steam line length, 15 ft (4.5 m).
lDo NOT over tighten hose clamps at the steam outlet. Max torque: 12in·lbs(1.36Nm).
lEnsure the steam line material is Condair-supplied, otherwise copper or stainless steel.
lEnsure the steam line out of the humidifier is vertical 6 in (15 cm) min. before any bends.
lInstall the steam distributor as close as possible to the humidifier. Short distances minimize
condensate losses and reduces the possibility of back pressure in the distribution line.
lInsulate the steam lines to reduce heat loss and condensate. Use 1.0 in (2.5 cm) pipe
insulation, rated for 212 °F (100 °C) (recommended).
lUse the appropriate slope for the steam line.
The steam line should have a slope greater than 15° (above the horizontal) away from
the humidifier for upward traveling steam.
The steam line should have a slope greater than 2° (below the horizontal) for
downward traveling steam. Condensate should be removed from the steam line at low
points using a T-connector condensate trap (not supplied).
lSupport the steam line with brackets because the steam hose will soften, and to reduce the
weight on the cylinder.
Condensate Line Considerations:
lUse condensate traps wherever condensate may form along the steam line. For
example, at low points along the line, at horizontal-vertical transitions, or after long
distances.
lP-traps located a minimum of 12 in (30 cm) below the duct.
lP-trap height minimum of 6 in (15 cm), or duct pressure + 2 in (5cm).
lDown slope of 1in/48in (1.2°), minimum
Condair RH 2594947_B_EN_2005_Condair-RH_IM Installation Instructions |11

12 |Installation Instructions 2594947_B_EN_2005_Condair-RH_IM Condair RH
Mounting the Humidifier
Location and Clearances
Allow clearances required for plumbing and electrical connections. 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.
lMount on a suitable wall or vertical surface. Do NOT sit the unit on the floor.
lWhen possible, mount the humidifier at a height convenient for servicing.
lInstall in areas with ambient temperature 40 –104 °F ( 5 – 41 °C) and relativehumidity5-
95%RH.
lTo allow for proper condensate return, it is recommended to install the humidifier below the
steam distributor. Take care to provide proper steam line routing and proper condensate traps.
lPlace the humidifier close to the steam distributor. Long distances reduce the output.
152 mm
915 mm
610 mm
254 mm
265 mm
467 mm
175 mm
36 in
6 in
24 in
10 in
10.4 in
18.4 in
6.9 in
915 mm
36 in
Figure 8 - Location and Clearances
Mounting Procedure
Mounting template supplied with the humidifier.
lThe humidifier is mounted using screw holes located on the rear of the unit.
lEnsure suggested clearances are met when deciding on the location and the unit is level.
lUse screws longer than 2 in (5 cm) if dry wall or other spacer is present.

A
A
A
B
B
A
A
B
B
Figure 9 - Mounting the Humidifier to the Wall (stud) or Duct
Mounting the humidifier:
1. Locate suitable location for the humidifier. On the wall stud (2x4 or equivalent) or duct, mark
the location for the key hole A(on the back of the humidifier). Insert a screw at A. Leave
space on the screw to hang the humidifier. The humidifier will hang from this point.
2. Insert a screw into the location marked A. Do NOT completely insert the screw; allow space
to hang the humidifier. Use a screw longer than 2 in (5 cm) if dry wall or other spacer is
present.
3. Open the door to the humidifier. Remove the steam cylinder if it is installed. Raise and hang
the humidifier on the screw A. Ensure the unit is level.
4. Through the inside of the humidifier, insert and tighten a screw into the lower mounting hole
B. Tighten the top screw at A.
Condair RH 2594947_B_EN_2005_Condair-RH_IM Installation Instructions |13

14 |Installation Instructions 2594947_B_EN_2005_Condair-RH_IM Condair RH
Installing the Steam Line
Location and Clearances (remote installation)
6 in
(15 cm)
6 in
(15 cm)
2
12 in
(30 cm)
3
1
θ>15˚
2
7.5
θ>2˚ 0.5
12
1 in
(2.5 cm)
Figure 10 - Remote Mounted Installation with Steam Distributor (horizontal duct shown)
1. Insulation (recommended) 2. Brackets, support (supplied by others) 3. T-connector, condensate trap (supplied
by others)
1 in
25 mm
Ø
1 in
25 mm
Ø
1 in
25 mm
Ø
1 in
25 mm
Ø
≥15°
Figure 11 - Installing the Steam Line and Steam Distributor
Installing the Steam Line:
1. Connect the steam hose to the humidifier and route it to the steam distributor, outer diameter 1 in
(25 mm). Secure with clamps.

Installing the Condensate Return
Installing the Condensate Return Line:
1. Open the front door of the humidifier and push in the tabs securing the cover:
a. On top of the humidifier.
b. On the door frame.
2. Tilt the cover out, then pull it out of the humidifier.
3. Inside the humidifier, remove the cap from the fill cup and attach the condensate line to the
condensate port. Secure with a clamp.
1
2
Figure 12 - Removing the Plumbing Cover and Installing the Condensate Return Line
1. Condensate return port, Ø 0.31 in (8 mm) 2. Fill cup
Condair RH 2594947_B_EN_2005_Condair-RH_IM Installation Instructions |15

16 |Installation Instructions 2594947_B_EN_2005_Condair-RH_IM Condair RH
Water Supply Connection
140 - 212 °F
60 - 100 °C
4
2
31
Figure 13 - Water Supply and Drain Connection
1. Water shut off valve
2. Inlet, quick connect (supplied)
3. Inlet water line, 1/4 in (6.4 mm)
(supplied)
4. Drain line, 3/4 in (20 mm) I.D. (supplied)
Water Supply Requirements
Quality: Potable water (do not use reverse osmosis or deionized water)
Pressure: 30 - 80 psig (2 - 5.5 bar)
Temperature: 39 - 86 °F (4 - 30 °C), cold water
Conductivity: 125 - 1250 µS/cm
Other: lWater shut-off valve installed before the humidifier (for service).
lInstalled according to national and local plumbing code.

Drain Connection
Drain Requirements
The Condair HumiLife RH produces hot water during operation. Upon normal drainage, the drain
water is automatically cooled to 140 °F (60 °C).
IMPORTANT! Drain water may reach high temperatures 212 °F (100 °C) in cases where the
supply water is not cold, or obstructed.
Considerations for the drain connection:
lDrain line is made of a material rated to handle hot temperatures, 212 °F (100 °C).
l(Recommended) Use the drain line hose supplied with the humidifier. For longer runs, use
copper pipe with the same inner diameter as the drain line hose supplied with the
humidifier, inner diameter: 3/4 in (20 mm).
lEnsure that the internal diameter throughout the drain line is constant.
lEnsure that the drain line is adequately sized. A restricted drain line may result in higher
mineral concentrations in the water and can result in poor performance.
lEnsure that the drain line is routed to a floor drain (or where plumbing codes permit). If the
drain is far from the humidifier, use a condensate pump rated for hot drain water.
lEnsure that the drain line has a consistent, downward slope to the drain.
Condair RH 2594947_B_EN_2005_Condair-RH_IM Installation Instructions |17

18 |Installation Instructions 2594947_B_EN_2005_Condair-RH_IM Condair RH
Electrical Connection
IMPORTANT! Wiring to be performed by a licensed electrician.
IMPORTANT! All wiring to be installed in accordance with national and local electrical codes.
Primary Power Connection
X1
L1
N
/
2
L
E
P
/
D
N
G
HOT
HOT
GND
HOT
N
GND
230 VAC120 VAC
Q1
Q1
Figure 14 - High Voltage Connection and External Disconnect
IMPORTANT! Do NOT use the neutral wire as a ground. Connect a dedicated ground to Ground
termination.
To install the high voltage connection:
1. Install a disconnect switch between the humidifier and the circuit breaker (for ease of
maintenance).
2. Route the power supply wire through the strain relief located at the bottom of the unit (closest to
front).
3. Connect the power wires to the main supply terminals L1, L2/N, and GND on the control board
(terminal X1) in the humidifier.
Notes:
lEnsure that adequate power is available to carry full humidifier amp draw, as indicated on the
specification label.
lA dedicated external fused disconnect may be installed between the humidifier and the circuit
breaker.
lDo NOT use the neutral wire as a ground.

Controls
Condair controls are available as accessories and can be ordered with the purchase of the
humidifier. If the controls were not ordered with the humidifier, they must be purchased from
Condair, or be supplied by others. A relative humidity (duct) sensor is supplied with the unit.
Requirements:
l18 AWG minimum
lWiring kept as short as possible
lCables for low voltage controls (such as humidistats, controllers, etc) should be routed
through the strain relief at the bottom of the humidifier (closer to the wall/duct).
Considerations for installing external controls:
lInstall the humidity control device in the return air duct (recommended) or in the room
being humidified. A relative humidity sensor comes with the unit (a modulating or on/off
humidistat is not included). Avoid placing near the discharge diffuser of humidified air, or in
the discharge zone of humidified air. Install the device in locations that represent the room
humidity (avoid areas near drafts, doorways, and sunlight).
l(Optional) Install an air proving switch upstream on the return-air duct to detect air flow. An
air proving switch will prevent the unit from producing steam if there is insufficient air flow
through the duct. Insufficient air flow during steam production produces excess and
unwanted condensate in the air ducts.
IMPORTANT! The humidifier must be connected to the furnace fan if an air proving
switch is not installed. This ensures that the unit is humidifying only while air is flowing
through your ducts.
l(Optional) Install a duct high limit sensor (or modulating or on/off humidistat) downstream
from the steam distributor and where the steam is fully absorbed under normal conditions.
l(Optional) Install an outdoor temperature sensor outside, in an area that accurately
represents the outdoor air temperature, and NOT in a sunny location.
Note: Condair humidifiers must have a closed circuit across its on/off security loop control
terminals (labeled "SC" in the wiring diagram) to operate. Condair recommends the use of an
On/Off high limit humidistat AND an air proving switch in series for this function.
Note: All high limit controls should be ON/OFF type, and wired in series to the "SC" terminals on
the control board.
Note: The main control can be done using a relative humidity sensor (included with the
humidifier), or with a humidistat (supplied by others).
The Condair HumiLife RH can be connected to the following devices:
lAir proving switches
lHumidistats or relative humidity (RH) sensors
lExternal fans
such as furnace fans, "enable" input (pilot duty only). External fans activate when the
humidifier receives a call for humidity.
The humidifier is factory configured to operate under most conditions without the need for any
changes. If required, several settings can be made using jumpers on the control board.
For further information, refer to "Wiring Diagram" on the next page.
Condair RH 2594947_B_EN_2005_Condair-RH_IM Installation Instructions |19

20 |Installation Instructions 2594947_B_EN_2005_Condair-RH_IM Condair RH
Wiring Diagram
CYLINDER/
Cylindre
X1
L1
L2/N
GND/PE
X7 X8
L
N
GND
+V
-V
G FCI P late/
P laq ue du D D FT
D rain Val ve/
Van n e de
vidan ge
Ground/
Mise à la
terre
Fill Valve/
vanne de
rem pl is sage
B1 B2
A1
A2
+
-
+
-
HOT HOT GND
HOT N GND
208-240 VAC
120 VAC
A3
On /Off
R
G
OR
C1
Q1
Q1
GND
24VDC
X13
J4
P4
P1 P2
J1
GF
RF
GT
EXT
24VDC
GND
LIM
24VDC
SC
SC
GND
HUM
24VDC
X2
X3
X4
X5
X6
1AT
F1
GND/PE
L1
L2/N
X12
X11
MAX LVL
X10
F2
16AT
X9
Gray/Gris
Red/Rouge
Black/Noir
Blu e/Bleu
Orange/Orange
Black/Noir
Black/Noir
Green- Yellow /Vert-Jaune
Blu e/Bleu
Brown/Brun
Black/Noir
Red/Rouge
POWER
SUPPLY/
source
d'alimentation
principale
DRAIN/Vidange
GND/Terre
INLET/Remplissage
GND/Terre
CYLINDER/Cylindre
LEDs
Switch
GND
24VDC
X14
Red/Rouge
Black/Noir
Run
Wifi
Cyl Spent
Fault
WIFI
MODULE
CYL
RPLC
Figure 15 - Wiring Diagram
A1: Humidity control sensor or controller (Install either A1 or A3)
A2: High limit control sensor or controller (optional)
A3: Humidistat (On/Off). Install either A1 or A3
B1/B2: Air proving switches, safety high limit humidistat, or external contact. Jumper, use if air proving switch or furnace fan not installed.
C1: Fan activation, connect to HVAC system
F1: Fuse 1AT (5x20 mm)
F2: Fuse 16AT, SPT (5x20 mm)
Q1: External disconnect or breaker