Carrier HUMCCLFP1025-A specifications Installation of HUMCCWTR2019-A Bypass Water Saver Humidifier

→Step 5ÐInstall Bypass Duct

Attach field-supplied 6-in. diameter duct, elbow, or starting collar with field-supplied 1/4-in. zip screws. Install supplied 6-in. damper in 6-in. duct connector.

IMPORTANT: On systems with central cooling, the damper should be closed during cooling season to prevent bypass air.

Do not support weight of bypass duct from humidifier Ð damage could result.

Step 6ÐInstall Drain Line

1.Use 5/8-in. ID vinyl tubing (field supplied) to connect drain on bottom of humidifier housing to an open drain.

→2. Use worm clamp to hold drain tubing in position over drain fitting outlet.

3.Make sure line is free of traps due to sagging and has sufficient pitch to drain.

Unit may leak if drain tubing is misapplied. Do not insert tubing inside of drain fitting outlet.

Step 7ÐMake Water Connection

If garden hose is not used for water supply:

1.Mount saddle valve on water line according to instructions supplied with valve.

2.Run 1/4-in. diameter (water line grade) tubing from saddle valve to adapter on solenoid valve and tighten compression fittings.

IMPORTANT: If water pressure is higher than normal (60 psi), use noise suppression disk included in parts bag. (Read water noise reducer note located inside package for instructions). For normal operation, saddle valve need only be opened 1 full turn to meet performance requirements.

3. Open valve and check installation for leaks.

NOTE: Saddle valve is self piercing on copper lines; 1/4-in. hole must be drilled in steel or iron pipes. Use only a grounded drill or a hand drill to avoid shock hazard. Turn off water and drain the pipe prior to drilling 1/4-in. hole.

Step 8ÐInstall Humidistat and Complete Wiring

1.Mount humidistat on inside wall, or return-air duct in accor- dance with section INSTALLATION OF HUMIDISTAT on page 10.

→2. Wire brown low-voltage leads to furnace control board, or install a field-supplied step-down transformer 115vac/24vac 60Hz to power solenoid valve. (See Fig. 4.) Make sure bridge rectifier is attached to coil of solenoid valve.

NOTE: Wiring must comply with National Electrical Code and any local codes or ordinances that may apply.

Step 9ÐStart-Up

1.Open saddle valve to permit water flow to the solenoid.

2.Check all connections for water leaks.

3.Set thermostat to call for heat. Set humidistat for highest humidity setting making sure contacts are closed. After a few minutes of operation, check the drain connection for leaks and

to see if water is flowing through humidifier.

4.Reverse thermostat and humidistat settings to insure proper shutdown.

5.Reset thermostat to normal setting. Reset humidistat to rec- ommended setting.

Step 10ÐFinal Steps

Attach humidifier maintenance instruction sticker to a visible location.

1.Inform homeowner of proper operation, maintenance, and humidistat setting.

a.If unit is installed during cooling season, close bypass damper, set humidistat for summer setting (OFF or lowest setting).

b.If installed during heating season, set unit for normal operation.

INSTALLATION OF HUMCCWTR2019-A--

BYPASS WATER SAVER HUMIDIFIER

Carrier's HUMCCWTR2019-A-- bypass water saver humidifier can be installed on either the supply or return plenum of a forced-air system. This unit requires an external bypass duct between the supply- and return-air ductwork.

→It is recommended to install the humidifier where it can be easily serviced. If this humidifier is installed with a central cooling system the factory-supplied 6-in. shutoff damper must be installed to close during the cooling season to prevent bypass air. Always install humidifier downstream of an electronic air cleaner.

→Step 1ÐInspect Package and Check Equipment

Inspect contents of packaged humidifier. File claim with shipping company prior to installation if shipment is damaged or incom- plete.

The package should contain:

1.Humidifier and media assembly

2.Humidistat

3.Template

4.Ten ft 1/4-in. water supply tubing

5.Owner's Manual

6.Warranty Certificate

7.Support Bracket

8.One 1/4-in. blunt point screw

9.Saddle valve assembly

10.Four sheet metal screws

11.6-in. damper

12.Worm clamp for field-supplied drain tube

13.Humidifier maintenance instruction sticker

14.Carrier logo label

Step 2ÐSelect Location (See Fig. 14.)

Humidifier may be installed on either supply or return plenum. If furnace has air conditioning coil, be sure humidifier does not interfere with coil ends. Remember to provide clearance for maintenance and evaporator pad removal.

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