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WARNING: Always check that you are not about to cut or drill into any air conditioning or electrical accessory during
installation.

 Mark and drill the mounting holes and cut an opening for the humidistat.

 Push the two quick connectors (

9.5

) on the humidistat (

9.3

) terminals identified #2 (or COM) and #3 (or NO).

 Split the wire coming from the transformer (

9.1

) in two on a suitable distance to connect one end to one of the motor (

9.2

)

wires and the other end to the humidistat terminal identified #2 (or COM).

 Use the separate piece of wire (

9.4

) to connect the other wire of the motor to the second humidistat terminal identified #3

(or NO).

 Run the control wires through an opening located at the bottom of the front panel of the humidistat.

 Hold the wires while you install the humidistat in the opening. Check that the metal of the duct neither touches the

connections nor cuts the wire insulation. Then fasten the humidistat to the duct. The humidistat mechanism is exposed in
the duct.

 Temporarily install the control knob (

8.4

) on the humidistat. (Finalize after the humidifier start-up).

18. Humidifier start-up

 Plug the transformer (

9.1

) and slowly turn the humidistat control knob (

8.4

) to the maximum setting. You should hear a

click and the humidifier drum should start turning slowly (approximately 1 revolution per minute).

 

THE DRUM CAN ROTATE IN EITHER DIRECTION.

 Carefully check that both ends of the water supply tubing are firmly held in place by their respective compression fitting.

 Check that the water level in the pan is at the right level and that the float closes the automatic valve completely.

 After peeling off the backing, affix the faceplate to the cover of the humidistat and re-install the control knob.

 Set the humidistat to a median value (40 %).

 Make sure that there is no leak before leaving the installation unattended.

19. Controlling the humidity level

 A relative humidity environment of 40% is recommended. However, you should take the outside temperature in

consideration before setting the humidity level in order to avoid condensation on the windows. Please refer to the table on
the humidistat to help determine the proper level.

 Each adjustment of the humidistat should be followed by a period of 24 hours to allow the general humidity level to

stabilize in the house.

 If your house remains unoccupied during the winter season, adjust the humidistat to a lower set point to prevent

condensation.

20. Humidifier maintenance tips

 Do not stop nor rotate the drum manually. Do not remove the drum when it is rotating as it may cause permanent damage

to the motor.

 Check the evaporator pad yearly and replace it if required.

 Depending on the water quality, the water pan and the float should be cleaned once a month.

21. Summer season

 If the system is used in air conditioning during the summer, reduce the air volume going through the humidifier by closing

the air damper.

 It is advisable to simply shut off the humidifier system :

1. Close the water supply valve (

13.1

).

2. Turn the humidistat knob (

8.4

) to the “OFF” position.

3. Unplug the transformer (

9.1

).

4. Empty and clean the water pan.

SELF-CLEANING MODEL:

Make sure that the peg (

14.7

) located at the end of the drum comes in contact with the paddle wheel at every turn.

Make sure that the drain tube has no bends or kinks and that the drained water flows easily to the floor drain without
accumulating in the tube.

SELF-CLEANING MODEL:

The draining system should also be cleaned once a year. Remove the screws (

16.3

) at the top of the plastic box and

carefully pull
the little plunger (

16.1

). Wash the plunger and the inside of the box with a little brush. Then re-assemble the draining unit in

the reverse order. Please refer to 

Fig 16 

and 

instruction # 10 

for a more detailed description.

WARRANTY: 

This humidifier is guaranteed against any defects in material and workmanship, under normal use, for

one (1) year from the date of purchase.
The frame and door are guaranteed for life against defects in material and workmanship, under normal use.
This warranty applies only if the unit is properly installed and operated according to the instructions provided with this
product. This warranty will not cover defects due to misuse or faulty installation. The manufacturer will not be held
responsible for any damage caused by water leaking from this installation. If warranty service is required during the
warranty period, the distributor will, at its sole discretion, repair or replace the product, without charge, upon delivery
of the product to the store where it was purchased, with proof of purchase.

Summary of Contents for 400 D

Page 1: ...ndard and Self cleaning Please read the instructions carefully before starting the installation Version 3 June 2001 400 D 800 D M 300 M 400 For future use please copy the free help line number into the space below Free help line for technical assistance 1 800 879 0123 ...

Page 2: ...rain tube has no bends its end placed in a floor drain and there is no resistance to the flow of the discharged water 11 The transformer supplied is rated for 120 V power supply Do not connect it to an installation supplied with another voltage 12 Do not set the humidity level higher than normally recommended or condensation damage could occur Safety Warnings 1 Please beware of sharp edges when yo...

Page 3: ...th a marker line Make a starting hole and cut a rectangular opening that will correspond to the back opening of the humidifier 7 3 4 x 6 1 2 Install the humidifier in the opening and attach it with the four screws 8 x 3 4 The ribs around the humidifier back opening must fit into the rectangular opening in the duct Check that the humidifier body is level from side to side and from back to front The...

Page 4: ...at is closest to the motor and mark it on the bottom of the pan Carefully make the appropriate round opening by knocking it with a flat screwdriver and a hammer The drain mechanism is factory assembled to be installed on the right side of the pan If the motor is on the right side then no change is necessary If the knockout hole is not big enough to receive the drain mechanism enlarge it a little b...

Page 5: ... Fig 13 Slip the brass compression nut 13 9 onto the plastic tubing then the nylon sleeve 13 7 with its most tapered end towards the end of tubing Fit the second brass insert 13 8 1 2 long supplied with the brass valve into the end of tubing Push the tubing fully into the supply valve Then tighten the brass compression nut with a small wrench NOTE The brass sleeve 13 6 supplied with the brass valv...

Page 6: ...istat should be followed by a period of 24 hours to allow the general humidity level to stabilize in the house If your house remains unoccupied during the winter season adjust the humidistat to a lower set point to prevent condensation 20 Humidifier maintenance tips Do not stop nor rotate the drum manually Do not remove the drum when it is rotating as it may cause permanent damage to the motor Che...

Page 7: ...ess steel hex nut 10 32 Drain kit Drain mechanism Rubber O Ring 0 375 ID x 0 500 OD x 0 070 Plastic hexagonal nut 7 16 24 Drain plastic tube 3 16 ID x 5 16 OD Plunger Spring Rubber O Ring 0 250 ID x 0 437 OD x 0 103 Supply valve Needle valve body top bracket Valve bottom bracket Machine screw 1 4 20 x 1 3 4 Hexagonal nut 1 4 20 Rubber gasket Brass sleeve for copper tubing Nylon sleeve for plastic ...

Page 8: ...j ...

Page 9: ...j ...

Page 10: ...J ...

Page 11: ...J ...

Page 12: ...WARNING This diagram is not drawn to actual demensions Please use measurements given to obtain actual size J ...

Page 13: ...ve not received a satisfactory response notify in writing Hamilton Home Products Inc PO Box 12309 Columbus Ohio 43212 HAMILTON WILL RECEIVE FREIGHT PREPAID ONLY REMOVABLE PARTS OR COMPONENTS OF SUCH DEFECTIVE PRODUCTS 7 This limited one year warranty does not apply to any part or component that is damaged in transit or handling has been subject to abuse neglect or accident has not been installed o...

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