9
Blower Speed
For optimum system performance and comfort,
it may be necessary to change the factory speed
setting. See Table 2 for factory settings.
WARNING:
To avoid electric shock, personal
injury, or death, turn off the electric
power at the disconnect or the main
service panel before making any
electrical connections.
1. Disconnect all electrical power to the unit and
remove the service panel.
CAUTION:
L a b e l a l l w i r e s p r i o r t o
disconnection when servicing
controls. Wiring errors can
cause improper and dangerous
operation. Verify proper operation
after servicing.
CAUTION:
To avoid personal injury or
property damage, make certain
that the motor leads cannot
come into contact with any metal
components of the unit.
2. Verify the required speed from the airfl ow data
found in Table 2. Place appropriate wire on the
appropriate motor speed tap for the required
airfl ow.
3. Check all factory wiring per the unit wiring
diagram and inspect the factory wiring
connections to be sure none loosened during
shipping or installation.
Table 2. Motor Lead Connection
Model
Q5RD
Wire Color /
Speed Tap
Motor
Speed
Air Flow
(0.3 In. WC)
024K
T6
Low 490
Black/T5
Med †
802
T4
High
1133
030K
Red Low
770
Black
High †
1064
036K
T1
Low
750
Red/T2
Med/Low **
1000
Orange/T3
Medium *
1140
T4
Medium/High
1300
T5
High
1450
042K
T1
Low
1340
Orange/T2
Med/Low *
1450
Red/T3
Medium **
1500
T4
Medium/High
1650
T5
High
1970
048K
T1
Low
1340
Red/T2
Med/Low **
1450
Orange/T3
Medium *
1500
T4
Medium/High
1650
T5
High
1970
060K
T1
Low
1300
T2
Med/Low 1400
T3
Medium**
1500
T4
Medium/High*
1650
T5
High
1950
* Denotes Factory Set Low Speed Cooling/ Heating
** Denotes Factory Set High Speed Cooling/ Heating
*** Denotes Factory Set Electric Heating Speed
Overcurrent Protection
Overcurrent protection must be provided at the
branch circuit distribution panel and sized as
shown on the unit rating label and according to
applicable local codes. Generally, the best fuse
or breaker for any heat pump is the smallest
size that will permit the equipment to run under
normal usage and provide maximum equipment
protection. Properly sized fuses and breakers
also prevent nuisance trips during unit startup.
If a fuse blows or a breaker trips, always
determine the reason.
Do not arbitrarily install
a larger fuse or breaker and do not, in any
case, exceed the maximum size listed on the
data label of the unit.
Thermostat Connections
• The heat-cool thermostat is equipped with a
system HEAT-COOL switch, which provides
a positive means of preventing simultaneous
operation of the heating and cooling units. The
thermostat is also equipped with an ON-AUTO
fan switch which allows the home owner to
operate the indoor blower when air circulation
is desired.
• Connect the low voltage wires to the respective
terminals on the thermostat base (Figure 12,
page 22). See thermostat instruction sheet
for more detailed wiring information.
• The thermostat should be mounted about
5 feet above the fl oor on an inside wall. DO
NOT install the thermostat on an outside wall
or any other location where its operation may
be adversely affected by radiant heat from
fi replaces, sunlight, or lighting fi xtures, and
convective heat from warm air registers or
electrical appliances. Refer to the thermostat
manufacturer’s instruction sheet for detailed
mounting information.
Summary of Contents for Q5RD Series
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