Condensate Drain Trap; Heat Pump Piping Sizes & Connections - Greenheck ERCH-20 Installation, Operation And Maintenance Manual

Condensate Drain Trap

This unit is equipped with a stainless steel condensate
pan with a 1-inch MPT stainless steel drain connection.
It is important that the drain connection be fitted with a
P trap to ensure proper drainage of condensate while
maintaining internal static pressures.
A P trap assembly (kit) is
supplied with each unit and is
to be assembled and installed
as local conditions require and
according to the assembly
instructions provided with the
P trap. If local and area codes
permit, the condensate may
be drained back onto the roof,
but a drip pad should be provided beneath the outlet.
If local and area codes require a permanent drain line,
it should be fabricated and installed in accordance with
Best Practices and all codes.
In some climates, it will be necessary to provide freeze
protection for the P trap and drain line. The P trap
should be kept filled with water or glycol solution at
all times and it should be protected from freezing to
protect the P trap from damage. If severe weather
conditions occur, it may be necessary to fabricate a P
trap and drain line of metal and install a heat tape to
prevent freezing.
20 Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific
Heat Pump Piping Sizes and Connections
Pipe Size
Model
(in. FPT)
ERCH-20
1
ERCH-45
ERCH-20
1.25
ERCH-45
ERCH-20
1.5 ERCH-45
ERCH-55
ERCH-55
2
ERCH-90
Number of
Tonnage
Connections
4 2
8 2
5 2
10 2
6 2
12.5 2
15 2
15 2
17.5 2
20 2
20 2
25 2
30 2
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