Heat Controller, Inc. | INSTALLATION INSTRUCTIONS | HDG Series Air Handler |
8.0 REFRIGERANT CONNECTIONS
Keep the coil connections sealed until refrigerant connections are made. See the Installation Instructions for the outdoor unit for details on line sizing, tubing installation, and charging information.
Coil is shipped with “No charge”. Evacuate the system before charging with refrigerant. Install refrigerant tubing so that it does not block service access to the front of the unit. Nitrogen should flow through the refrigerant lines while brazing.
Use a brazing shield to protect the cabinet’s paint and a wet rag to protect the rubber grommet from be- ing damaged by torch flames. After the refrigerant connections are made, seal the gap around the con- nections with pressure sensitive gasket.
8.1 CONDENSATE DRAIN TUBING
Consult local codes for specific requirements.
CONDENSATE DRAIN TRAP
DO NOT OPERATE UNIT WITHOUT
CONDENSATE DRAIN TRAP.
UNIT
DO NOT OVERTIGHTEN DRAIN FITTING
3" 3"
UNIT MUST BE SLIGHTLY INCLINED
TOWARD DRAIN CONNECTION
TO APPROVED DRAIN
Fig. 5 CONDENSATE DRAIN TRAP
IMPORTANT:
1.When making drain fitting connections to the drain pan, use a thin layer of Teflon paste, silicone or Teflon tape and install, hand tighten.
2.When making drain fitting connections to drain pan, do not overtighten. Over tightening fittings can split pipe connetions on the drain pan.
•Install drain lines so they do not block service access to front of the unit. Minimum clearance of 24 inches is required for filter, coil or blower removal and service access.
•Make sure unit is level or pitched slightly toward primary drain connection so that water will drain completely from the pan. (See Fig. 5)
•Do not reduce drain line size less than connection size provided on condensate drain pan.
•All drain lines must be pitched downward away from the unit a minimum of 1/8” per foot of line to ensure proper drainage.
•Do not connect condensate drain line to a closed or open sewer pipe. Run condensate to an open drain or run line to a safe outdoor area.
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