International comfort products CAS090 G Series Installation Instructions Manual page 13

Convenience
Outlet
GFCI
Pwd-CO
Fuse
Switch
Control Box
Access Panel
Fig. 12 - - Convenience Outlet Location
The non- - powered convenience outlet requires the field
installation of a general-purpose 125-volt 15-A circuit
powered from a source elsewhere in the building. Observe
national and local codes when selecting wire size, fuse or
breaker requirements and disconnect switch size and
location. Route 125-v power supply conductors into the
bottom of the utility box containing the duplex receptacle.
Maximum continuous current for this type of convenience
outlet (non- - unit powered) must not exceed 8 Amps.
WARNING
!
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Using unit-mounted convenience outlets: Units with
unit-mounded convenience outlet circuits will often
require that two disconnects be opened to de-energize
all power to the unit. Treat all units as electrically
energized until the convenience outlet power is also
checked and de-energization is confirmed. Observe
National Electrical Code Article 210, Branch Circuits,
for use of convenience outlets.
Installing Weatherproof Cover: A weatherproof while in
use cover for the factory installed convenience outlets is
now required by UL standards. This cover cannot be
factory mounted due its depth; it must be installed at unit
installation. For shipment, the convenience outlet is
covered with a blank cover plate.
The weatherproof cover kit is shipped in the unit's control
box. The kit includes the hinged cover, a backing plate
and gasket.
DISCONNECT ALL POWER
CONVENIENCE OUTLET.
Remove the blank cover plate at the convenience outlet;
discard the blank cover.
Loosen the two screws at the GFCI duplex outlet, until
1
approximately / in (13 mm) under screw heads are
2- -
exposed. Press the gasket over the screw heads. Slip the
501 01 3600 01
backing plate over the screw heads at the keyhole slots
and align with the gasket; tighten the two screws until
snug (do not overtighten).
Mount the weatherproof cover to the backing plate as
shown in Fig. 13. Remove two slot fillers in the bottom of
the cover to permit service tool cords to exit the cover.
Check for full closing and latching.
Pwd-CO
Transformer
C10936
All Units —
Voltage to compressor terminals during operation must be
within voltage range indicated on unit nameplate. See
Table 7. On 3-phase units, voltages between phases must
be balanced within 2% and the current within 10%. Use
the formula shown in the legend for Table 7, Note 4 (see
page 15) to determine the percent of voltage imbalance.
Operation on improper line voltage or excessive phase
imbalance constitutes abuse and may cause damage to
electrical components. Such operation would invalidate
any applicable warranty.
Field Control Wiring —
CAS090 unit control voltage is 24 v. See Fig. 19 for
typical field control connections and the unit's label
diagram for field-supplied wiring details. Route control
wires to the CAS090 unit through the opening in unit's
end panel to the connections terminal board in the unit's
control box.
Remainder of the system controls connection will vary
according to the specific construction details of the indoor
section (air handler or packaged fan coil). Fig. 14 depicts
typical connections to a FAS fan coil unit. Plan for field
connections carefully and install control wiring correctly
per the project plan. Additional components and
supplemental transformer accessory may be required.
TO UNIT AND
The CAS unit requires an external temperature control
device. This device can be a thermostat (field-supplied) or
a thermostat emulation device provided as part of a
third- - party Building Management System.
Specifications are subject to change without notice.
Fig. 13 - - Weatherproof Cover Installation
C09022
13