30
FORM CIM 0203
A sensor is provided in the water inlet side of the
water cooled condenser. If the incoming water tem-
perature is below the control setpoint, a normally
closed solenoid valve opens and lets the water pass
through the free cooling coil. The refrigerant cir-
cuit is deactivated during the free cooling econo-
mizer operation.
CONDENSING SECTION
MODIFICATION FOR OUTSIDE
INSTALLATION
This kit is available to attach to the outside con-
denser/condensing section (See Fig. 28). The air
deflector prevents condenser discharge air from re-
circulating into the condenser return air. The
weather hood minimizes the possibility of water and
snow being pulled in. The screens keep debris, wild-
life and hands out of unit. See Figure 27 for vari-
ous sizes.
VERTICAL STACKING UNIT
The vertical stacking option is designed for instal-
lations where floor space is minimal and a ceiling
space is not available. The evaporator section is
placed above the condensing section for location
in small spaces. Evaporator discharge air is avail-
able through the front or top for easy duct installa-
tion.*
* Note: For other sheet metal arrangements, con-
tact your local sales office.a
A rigid frame system supports the evaporator and
provides vibration-free operation. Quick-connect
couplings allow the unit to be split in the field, if
needed, for installation. The interconnecting wir-
ing is protected by a cover.
The stacking units are available in all models. See
Figures 29 through 32.
Summary of Contents for 4CA1901
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