Heat Controller HMG**F1E, HMG**X1E, HCG**V1E installation instructions Condensate Drainage Example

1. Remove grommets from line set holes.

CAUTION:

It is recommended that a wet rag be wrapped around the suction line in front of the close off plate or the sensing bulb (if TXV is installed) before applying heat. Failure to keep components cool during brazing may result in structural damage, premature equipment failure, or possible personal injury.

2.Unbraze and remove the cap on the suction line.

3.Route and cut both lineset tubes to proper length in accordance with the outdoor unit specifications. Verify the ends are round, clean, and free of any burrs.

4.Position grommet on line set with sufficient distance away from brazing area. Brazing processes can permanently damage grommets.

5.Connect the suction and liquid lineset tubes.

CAUTION:

It is recommended that a wet rag be wrapped around the suction line in front of the close off plate or the sensing bulb (if TXV is installed) before applying heat. Failure to keep components cool during brazing may result in structural damage, premature equipment failure, or possible personal injury.

UPFLOW

HORIZONTAL

3/4” Adapter w/

3/4” dia. hose barb

DOWNFLOW

3/4” minimum dia. PVC or flexible tubing

NOTES:

1.The drain lines must maintain a downward slope to ensure proper condensate drainage.

2.Each condensate drain must be trapped separately using a J-Trap or field supplied loop.

Figure 9. Condensate Drainage Example

6.Braze the individual connections with dry nitrogen flowing through the joints. NOTE: This will prevent internal oxidation and scaling from occurring.

7.Wrap the refrigerant lines with pressure sensitive neoprene or other suitable material especially where the lines enter the opening in the sheet metal.

8.Evacuate the system of moisture and non-condensables to prevent low efficiency operation or damage to the unit. The suggested range of evacuation is 350 - 500 microns.

9.Charge the system with refrigerant. Refer to the outdoor unit installation manual for additional charging instructions.

10.Check the system for leaks, including the lineset and the brazed joints.

11.Replace all grommets and properly dispose of all removed parts.

Condensate Drainage

CAUTION:

The air handler must be level to ensure proper condensate drainage. An unlevel installation may result in structural damage, premature equipment failure, or possible personal injury.

•Methods for disposing of condensate vary according to local codes. Refer to local codes or authority having jurisidiction for restrictions and proper condensate disposal requirements.

•The drain pan that is supplied with this air handler contains a primary and secondary drain fitting. The condensate is drained from the unit through two 3/4” female pipe fittings located on the front side of the unit as shown in Figure 9.

•The drain pan must be drained with field supplied tubing or pvc pipe and adequately trapped. Both drain tubes must have a minimum diameter of 3/4” and be trapped separately.

IMPORTANT: Failure to install a trap may result in condensation overflowing the drain pan, resulting in substantial water damage to surrounding area.

•Route both lines to a suitable drain, avoiding sharp bends and pinching of the lines. The drain should maintain a minimum horizontal slope in the direction of discharge of not less than 1” vertical for every 10 ft of horizontal run.

•If the air handler is located in or above a living space where damage may result from condensate overflow, an auxiliary drain pan shall be installed under the unit. A separate drain line should extend from the pan to a conspicuous point and serve as an alarm indicating that the primary drain is restricted. As an alternative to a separate drain line, an approved water level indicator or float switch device may be used to shut down the unit in the event water is detected in the auxiliary pan.

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