General Description - NOT model specificEnergy Recovery Ventilator with Heating and Cooling
®
19
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.
Condensate Overflow switch
This unit is equipped with an optional factory-mounted
condensate overflow switch. In the event that a high
level of condensate is detected, a dry contact will be
powered (24 VAC). This dry contact can be used for
field monitoring of condensate levels. All monitoring and
control shall be provided by others.
Pipe Size
(in. FPT)
Model Tonnage
Number of
Connections
1
ERCH-20 4 2
ERCH-45 8 2
1.25
ERCH-20 5 2
ERCH-45 10 2
1.5
ERCH-20 6 2
ERCH-45
12.5 2
15 2
ERCH-55 15 2
2
ERCH-55
17.5 2
20 2
ERCH-90
20 2
25 2
30 2
Heat Pump Piping Sizes and Connections
Piping Installation
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