9
GUIDE SPECIFICATIONS -- Accessories
Wall Sleeves
The wall sleeve must be industry accepted dimen-
sions: 13-3/4” depth x 42” width x 16-1/16” height and
constructed of insulated galvanized steel with electro-
deposition paint finish with ULV resistant high-solids
polyester overspray. Sleeve must be shipped with
weather resistant rear closure panel installed.
Outside Grilles
Must be architectural extruded, anodized aluminum
( AGK*** B) or standard stamped aluminum
(SGK**B). All other grilles must be submitted to PTAC
manufacturer for feasibility, airflow characteristics and
compliance with U.L. regulations, where necessary.
Remote Temperature Sensor
A field installed thermistor will override the unit mounted
thermostat to allow more accurate, internal wall-sensing
of room ambient temperature. All other modes and
functions remain at the PTAC unit.
Condensate Drain Kit
Attaches to the bottom of the wall sleeve for directional
controlled internal or external disposal of condensate,
defrost, or rain water.
Subbase Kit
Necessary for U.L. listing requirements for 265 volt units
(Hard Wire Kit may be substituted for Subbase kit).
Optional for 230/208 volt units. Must be prewired to
facilitate field electrical connections and include a NEMA
6 or 7 configuration electrical receptacle. It must have
two leveling screws for sleeve support and accurate unit
leveling during installion. Locations for field installation
of physical disconnect switches, cartridge-style fuse
holders and circuit breakers must be provided. Side-
skirts must be provided with subbases.
Power Vent & Damper
Must be provided to maximize ventilation air intake to up
to approximately 70 CFM. Power vent must be off and
damper door closed when unit fan is de-energized.
Fuse Holders (included in 265V chassis)
Must be installed either in the unit or the subbase and
must match the electrical requirements of the chassis.
Security Key Locks
Must be installed to prevent tampering of the unit con-
trols. Unit room cabinet must also be secured to the
chassis with field supplied screws. U.L. approved for
institutional use only.
Duct Kits
Both a main duct kit, an extension duct kit, and a
terminal duck kit must be supplied to duct conditioned
air into a second room.
Hydronic Heat Kit
Is required for heating functions instead of electric resis-
tance heaters. Unit must retain complete service access
with the kit installed. Proper water or steam valves must
be used; however, they are not included in the Hydronic
Heat Kit.
Condensate Removal Pump (Heat Pumps only)
Must be installed to assist in removing the condensate
developed by the heat pump operation and transfer it to
the indoor coil to dissipate into the room adding humidity
to the room.
Disconnect Switch
Power disconnect switch must be installed in subbase
for use as a physical disconnect where required by local
codes.
Circuit Breaker Kit
Must be installed in subbase to provide overcurrent
protection for proper 230/208 volt amperage. Can also
be used as a physical disconnect where local codes
permit for 230/208 voltage.
Hard Wire Kit
Must be used to permanently wire chassis for hard wire
purposes. (For 265 volt units, Hard Wire Kit may be
substituted with Subbase Kit.)
Thermostats
A manual, auto changeover, or progammable thermo-
stat must be installed to provide full remote operation of
the chassis. A Remote Escutcheon Kit must be used to
indicate remote operation.
(The optional accessories listed below perform specific functions required in some installations.)
(New installations typically require a minimum of WS900B wall sleeve and an outdoor grille.)
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