background image

13

Maintenance instructions for models mounted on the face of a vertical return
duct, side of a horizontal return duct, or mounted behind a wall using
discharge extension 

Your humidifier is constructed from quality materials to assure superior
performance during normal operation. The motor bearings are permanently
lubricated and do not require oiling. The motor is also thermal overload
protected against extreme conditions.

To clean the unit:

1.

Turn the power to the furnace OFF or turn off the electric switch to the
humidifier, if provided.

2. 

Disconnect the humidifier motor leads.

3. 

Turn off the humidifier water supply from the saddle valve and remove
water line from humidifier.

4. 

Remove the humidifier from the wire mounting bracket.

5.

Remove the discharge dome from the humidifier by pressing on the sides
of the dome and lifting upward.

6.

Lift the entire atomizing assembly from the water reservoir pan.

7.

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 impeller tube, ensuring that the six holes at the
top of the impeller tube are open and clear of mineral deposits. A pipe
cleaner works well for this cleaning operation.

Note: The impeller tube and pump can become clogged by algae
formations prevalent in certain water sources. The addition of 10 drops
of bleach to the water reservoir pan each week is advisable. 

9.

Replace the pump into the impeller shaft. 

10. Carefully rotate the impeller to ensure it turns freely. Do not force the

impeller shaft to turn or breakage could result.

11. With the atomizing assembly removed, clean the water reservoir pan

thoroughly. We suggest either a water/white vinegar solution or liquid
humidifier cleaner.

12.  Reassemble and remount the humidifier by reversing steps 6, 5, and 4.

13. Reconnect the water line and motor leads to the humidifier, turn on the

water supply from the saddle valve and restore electrical power.

Maintenance

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...

Reviews: