Installation, Operation and Maintenance Manual
VariCool EZ-Fit
8
Subject to change without notice.
Condensate Drain
Each EZ-Fit evaporator has a condensate drain connection
in the base frame (Ref Figure 1) If the application contains
dual modules two (2) drain traps are required
Traps will need to be connected to the 1-1/4” NPT drain
connection(s) (Ref Figure 1)
A condensate drain trap must be field fabricated and installed
The purpose of the trap is to neutralize the negative pressure
created within the blower cabinet
The negative pressure can vary from less than 1” up to 3”
column The condensate trap must be of sufficient depth
in water column to permit the condensate to flow from the
drain pan Failure to have a sufficient drain trap will cause
the condensate to overflow the drain pan or to cause the unit
to shut down on the drain pan overflow safety
The “A” dimension (Ref Figure 2) must equal or exceed the
negative static pressure developed by the supply air blower
The “A” dimension will be unique for each unit application
The trap must be 2-1/2” deep to maintain a water seal under
all operating conditions, especially during blower start-up
It is highly recommended that the trap be primed with water
prior to start-up
Each trap must be piped to a suitable waste drain
Plugged
Removable
Cleanout
A
25
Min
35
Figure 2 - Condensate Trap Dimensions
Condensate Drain
1-1/4" NPT
4276
1047
Figure 1 - Condensate Drain Location
Summary of Contents for VariCool EZ-Fit Series
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