Connection Sizes, Water/Glycol Cooled Units; Connection Sizes, Fluid Coolers; Chilled Water Piping; Condensate Drain Piping - DA Data Cool Series Installation, Operation And Maintanance Manual

2.2.3 Connection Sizes, Water/Glycol Cooled Units

2.2.4 Connection Sizes, Fluid Coolers

2.3

Chilled Water Piping

Units with Chilled Water cooling require a separate source of chilled water. These chilled water connection
sizes will be equal to the condenser water connection sizes on the chart in Section 2.2.3.
2.4

Condensate Drain Piping

The evaporator section is equipped with a 3/4" FPT connection on the bottom for condensate removal.
A union is recommended at the field connection which will permit easy disconnection from the unit for
cleaning.
A trap should be built into the drain line to prevent air from backing up into the unit. Drain lines should be
pitched downward not less than 1/4" for each ten feet of horizontal run. Do not reduce the size of the
drain line. Where local codes permit, PVC pipe may be used.
Some applications have no convenient means of allowing a gravity drain. In this case, a condensate
pump can be used. These come either factory mounted or shipped loose. Factory mounted condensate
pumps do not require a separate power source and the alarm switch is wired to the control system.
Condensate pumps that are not factory mounted ship loose (or field provided) typically require a dedicated
110 volt power source. Always check the pump power requirements before connecting power. Field
pipe connections must be made to the pump discharge connection. A check valve must be installed to
prevent short cycling.
Evaporator
Model
DACW/G 02
DACW/G 03
Fluid Cooler
Model
DAFC 06
DAFC 07
DAFC 09
DAFC 11
DAFC 15
DAFC 17
Water IN and OUT
Connections, OD
3/4"
3/4"
Water IN and OUT
Connections, OD
1-5/8"
1-5/8"
1-5/8"
2-1/8"
2-1/8"
2-5/8"
11