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mrcool.com
Unit Installation
Condensate Removal
1.
DO NOT
connect the condensate drain pipe into the waste pipe or other pipelines that are likely to produce corrosive or
peculiar smells. This will prevent odors from entering indoors or corrupting the unit.
2.
DO NOT
connect the condensate drain pipe into the rain pipe. This will prevent rain water from pouring in and causing
property loss or personal injury.
3.
The condensate drain pipe should be connected into a special drain system for the unit.
4.
The drain pan has primary and secondary drain connections. Condensate removal is performed by attaching a 3/4” PVC
pipe to the evaporator coil pan and terminated in accordance with local or state Plumbing/HVAC codes. The installation
must include a “P” style trap that is located closely to the evaporator coil.
DO NOT
over-tighten the drain connection in
order to prevent damage to the evaporator drain pan. See the following figure for details of a typical condensate line “P”
trap.
Drain Connection
2” Minimum
3” Minimum
Flexible Tubing
(Hose or Pipe)
Positive Liquid Seal
(Required)
Unit
IMPORTANT
The cutoff valves on the air handlers must be opened AFTER connecting the lines
and BEFORE turning on the unit. Otherwise, operation can cause leakage and/or
damage to the unit.
Fig. 2.8
