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Adjustment Slots
(Both Ends of Unit)
Fig. 13 — Drain Pan Slope Adjustment
Fan Motors and Drives
Motor and drive packages are factory installed in all units. The motor
and drive packages consist of the following items:
1 — fan motor
1 — adjustable motor pulley
1 — fan pulley
1 — fan belt
(40RUA*07-12, 40RUQ*07-12, 40RUS*08-12 units)
2 — matched fan belts
(40RUA*14-16, 40RUQ*16, 40RUS*14-16 units)
For instructions on changing fan rotation, changing drive speeds and
adjusting drives, see "Pulley and Drive Adjustment" on page 30.
Power Supply and Wiring
Check the unit data plate to ensure that available power supply
matches electrical characteristics of the unit. Provide a disconnect
switch with an integrated lock-out feature of size required to provide
adequate fan motor starting current. See Tables 12-15 for unit
electrical data. See Table 16 for fan contactor coil data.
PVC Stub Unit
Drain Connection
Failure to follow this warning could result in personal injury or
death.
Do not use gas piping as an electrical ground.
Unit cabinet must have an uninterrupted, unbroken electrical
ground to minimize the possibility of personal injury if an
electrical fault should occur. This ground may consist of
electrical wire connected to unit ground lug in control
compartment, or conduit approved for electrical ground when
installed in accordance with NEC (National Electrical Code);
ANSI/NFPA 70, latest edition (in Canada, Canadian Electrical
Code CSA [Canadian Standards Association] C22.1), and
local electrical codes.
FIRE HAZARD
Failure to follow this warning could result in personal injury,
death, or property damage.
Do not connect aluminum wire between disconnect switch
and fan coil unit. Use only copper wire. (See Fig. 14.)
ELECTRIC
DISCONNECT
SWITCH
Fig. 14 — Disconnect Switch and Unit
21
WARNING
WARNING
COPPER
WIRE ONLY
ALUMINUM
WIRE
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