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11. Before mounting the humidifier in its final position, carefully rotate the impeller assembly

by hand to ensure it rotates freely. Mount the humidifier on the wire mounting bracket with
the float and valve assembly connection facing the most convenient location, but providing
the least obstruction to traffic. Be sure that the water reservoir pan feet do not rest on the
wire bracket and that the water reservoir pan is level.

12.  Locate the discharge hole on the outside wall. Mount the outside wall hole template using

the center of the pilot hole for reference. A pencil may also be used to find the previously
drilled pilot hole. When the outside wall hole template is secured, cut the hole in the
outside wall, using a saber saw or equivalent, for the discharge nozzle. 

13. Measure the total thickness of the wall, not the stud thickness, but the distance between

the surfaces of the inside and outside walls. 

14. The length of the discharge extension nozzle (provided) will be 2 5/8” long PLUS the total

wall thickness as determined in the previous step. Cut the extension nozzle to length on the
square end. The opposite end of the extension nozzle is angled to provide the correct fit
with the outside wall. 

15.  Fit the flexible connector sleeve onto the discharge dome and fasten securely with one (1)

hose clamp provided. 

16.  Insert the angle cut end of the extension discharge nozzle into the hole cut into the inside

wall, making sure the white line is pointed UP. Connect the extension discharge nozzle to
the discharge dome’s flexible connector sleeve. The angle cut end of the extension discharge
nozzle should be adjusted so that 5/8” of the tube extends past the outside wall. Secure in
position with one (1) hose clamp.

17.  Install the cosmetic bezel onto the discharge side of the extension discharge nozzle. Making

sure that the bezel sits flat against the wall, 1/4” of the extension discharge nozzle should
extend past the bezel. This setup is necessary to prevent excessive condensation.

Physical installation

Connector sleeve

Inside wall

Outside wall

Discharge extension 

nozzle

Cosmetic bezel

Summary of Contents for 707U

Page 1: ...11 Maintenance 12 Unit Diagram and Parts List 14 Warranty Back cover Manual for Installation Operation Maintenance Duct Mount Centrifugal Atomizer Humidifier Table of Contents 256703 001 7 04 CAUTION...

Page 2: ...into the home and heated When heated this air dries out and greatly increases its capacity to hold more moisture By using a humidifier a source of water is provided to satisfy this increased moisture...

Page 3: ...turn the humidistat to the OFF position Sq Footage of Home 1000 1500 2000 2500 3000 4000 Tight Home GPD 0 5 3 0 5 0 7 5 10 0 14 5 Average Home GPD 5 0 10 0 14 0 19 0 23 5 33 0 Loose Home GPD 10 0 16...

Page 4: ...at least six 6 linear feet preferably 10 feet upstream from any electronic air cleaner Failure to follow this recommendation can cause excessive nuisance arcing and or power supply failure If the duct...

Page 5: ...rge nozzle should be at least two 2 feet below the ceiling and from a vertical wall along the side The discharge nozzle should be about six and a half 6 1 2 feet from the floor If this is not possible...

Page 6: ...cturer s original warranty Remember to select a location that is readily accessible for periodic inspection and cleaning of your humidifier Allow a minimum of 2 clearance in front of the humidifier an...

Page 7: ...position with 2 10 sheet metal screws and flat washers provided 10 The float and valve assembly have been factory adjusted to maintain 1 1 1 2 of water in the water reservoir pan at normal water pres...

Page 8: ...II of the inside wall using a saber saw or equivalent Do NOT cut through the entire wall 8 Remove the template from the wall In the 6 5 16 diameter holes previously drilled into the inside wall insta...

Page 9: ...sion nozzle provided will be 2 5 8 long PLUS the total wall thickness as determined in the previous step Cut the extension nozzle to length on the square end The opposite end of the extension nozzle i...

Page 10: ...copper tubing to the float and valve assembly with the ferrule and compression nut provided Caution The float and valve assembly must not turn when tightening the copper tubing compression fittings to...

Page 11: ...operation of the humidifier during the heating season 3 The humidifier will only operate when the furnace blower is in operation 4 It is recommended to install a humidistat provided with model 707U i...

Page 12: ...hrow switch may be installed 4 Turn the humidistat to the highest level past 60 and the humidifier should begin to run The humidifier should stop when the humidistat is turned off 5 Set the furnace co...

Page 13: ...ly therefore the frequency of cleaning the unit also varies During the heating season check for film or scale build up in the unit or any moving part Establish a proper cleaning schedule to ensure the...

Page 14: ...Remove the pump from the end of the impeller shaft If the pump is stuck in the motor drive shaft run hot water over the end of the shaft for a few seconds to loosen the pump 8 Flush water through the...

Page 15: ...SCREEN 6 1 1 D9P IMPELLER 7 1 1 M3 SCREW SET CUP 8 1 1 8A IMPELLER PUMP 9 4 4 90 VIBRATION DAMPER 10 1 1 35P CENTER PAN 11 4 4 23 CENTER PAN SUPPORT 12 2 2 27 DRIP TUBE 13 1 1 92P FLOAT VALVE ASM 14...

Page 16: ...ders com Humidifiers which have been installed or become part of real estate cannot be returned CareCo will receive freight prepaid only removable parts or components of such defective humidifiers 6 T...

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