Product data

HIGH WALL UNITS —
These units should be positioned as high as possible on the wall for best air circulation.
Allow adequate clearances above the unit for servicing (removing unit covers). Place the unit in the middle (horizontally)
of the wall selected (if possible). Select an outside wall if available to make piping easier, and place the unit so it faces the
normal location of room occupants.
CEILING-SUSPENDED UNITS —
These units should be mounted near the ceiling and against a wall. The unit
should be centered (horizontally) on the wall for best performance. Locating the unit on an outside wall will make piping
easier, but units may also be mounted away from a wall if desired. (If the unit is mounted away from a wall, the rear panel
of the unit may need a field-supplied trim strip for improved appearance.) Locate the fan coil return over an area that is
not normally occupied for quietest operation. Do not block air discharge for a minimum of 15 ft to prevent dumping of
cold air and drafts.
IN-CEILING CASSETTE UNITS —
These units should be mounted in the ceiling, preferably
near the center of the room. If the unit must be mounted near a wall, close the air discharge on the blocked side(s). (Up to
2 sides may be blocked.) Locate the control box away from the blocked side(s).
CONSOLE UNITS ---- These units
should be mounted against the wall. If mounted on an interior wall the
2-way accessory kit can be installed. They may also be used as a Ceiling Suspended Unit. The unit should be centered
(horizontally) on the wall for best performance. Locating the unit on an outside wall will make piping easier.
SATELLITE UNITS
– These units should be mounted above a suspended ceiling. . Locating the unit on an outside
wall will make piping easier, but units may also be mounted away from a wall if desired. By using the accessory multi-
zone adapter package and 8” round flex duct, above ceiling fan coils can be connected to multiple Carrier 35BD boot
diffusers for the ultimate in air distribution.
5. Mounting template
40Q series fan coil units are furnished with a mounting template to mark the location of the mounting brackets, wiring,
and refrigeration hole locations. In addition, the Under Ceiling units indicate the location of ventilation-air connections.
6. Support
Adequate support must be provided to support the weight of all fan coils. Refer to the Specifications Section #11 for fan
coil weights, and the base unit dimensional drawings Section #17 for the location of mounting brackets.
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System operating conditions
OUTDOOR UNITS
Operating limits:
Maximum Cooling Ambient (F) 125
Minimum Cooling Ambient (F) (without accessory low-ambient kit) 55
Minimum Cooling Ambient (F) (with accessory low-ambient kit) -20
Minimum Cooling Return-Air Temperature (F) 55
Maximum Cooling Return-Air Temperature (F) 95
Maximum Heating Return-Air Temperature (F) 80/71*
Minimum Heating Return-Air Temperature (F) 55
Minimum Heating Ambient Temperature (F) 0
Maximum Heating Ambient Temperature (F) 80
Saturated Suction Temperature Range
Minimum (F) -15
Maximum (F) 55
Saturated Condensing Temperature Range
Minimum (F) 85
Maximum (F) 150
Maximum Compressor Discharge Temperature (F) 275
Minimum Discharge Superheat (F) 60
*Dry bulb/wet bulb.
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