Installation guide

-..) Table 2--Accessory Usage
ACCESSORY
Crankcase Heater
Evaporator Freeze Thermostat
Winter Start Control
Accumulator
Compressor Start Assist
Capacitor and Relay
Low-Ambient Controller,
MotorMaster_ Control,
or
Low-Ambient Pressure Switch
Wind Baffle
Coastal Filter
Support Feet
Liquid-Line Solenoid Valve
or
Hard Shutoff TXV
Ball Bearing Fan Motor
REQUIRED FOR
LOW-AMBIENT
APPLICATIONS
(BELOW 55°F)
Yes
Yes
Yes1"
NO
REQUIRED FOR
LONG-LINE
APPLICATIONS*
(OVER 50 FT)
Yes
No
No
No
REQUIRED FOR
SEA COAST
APPLICATIONS
(WITHIN 2 MILES)
No
No
No
NO
Yes Yes No
Yes No No
See Low-Ambient Instructions No No
No No Yes
Recommended No Recommended
See Long-Line
No Application NO
Guideline
Yes:[: No No
• For tubing line sets between .50 and 175 ft, refer to Residential Split System Long-Line Application Guideline.
t Only when low-pressure switch is used
:_ Required for Low-Ambient Controller (full modulation feaature) and MotorMaster Control only
NOTE: Install branch circuit of adequate size per NEC to handle
unit starting current. Locate disconnect within sight from and
readily accessible from unit per Section 440-14 of NEC.
r,.] w._,d
The unit cabinet must have an uninterrupted or unbroken
ground to minimize personal injury if an electrical fault
should occur. The ground may consist of electrical wire or
metal conduit when inslalJed in accordance with existing
electrical codes. Failure to follow this warning can result in an
electrical shock, fire, or death.
ROUTE GROUND AND POWER WIRES--Remove access
panel and control box cover to gain access to unit wiring. Extend
wires from disconnect through power wiring hole provided and
into unit control box,
DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES
I FIELDPQWER ]
I WIRING
I
FIELD GROUND
WIRING j
Q
GROUND
LUG
Fig. 4--Line Power Connections
CQNTACTOR
C>°C}
©oC>
A91056
CONNECT GROUND AND POWER WIRES -- Connect ground
wire to ground connection in control box for safety. Connect
power wiring to contactor as shown in Fig. 4.
CONNECT CONTROL WIRING--Route 24-v control wires
through control wiring grommet and connect leads to control
wiring. (See Fig. 5.)
Use No, 18 AWG color-coded, insulated (35 ° C minimum) wire.
If thermostat is located more than 100 ft from unit as measured
along the control voltage wires, use No. 16 AWG color-coded
wires to avoid excessive voltage drop.
All wiring must be NEC Class I and must be separated from
incoming power leads.
Use furnace transformer, fan-coil transformer, or accessory Irans-
former for control power. 24-v/40va minimum.
NOTE: Use of available 24-v accessories may exceed the mini-
mum 40-va power requirement. Determine total transformer load-
ing and increase the transformer capacity or split the load with an
accessory transformer as required.
Step 8_Compressor Crankcase Heater
When equipped with a crankcase heater, furnish power to heater a
minimum of 24 hrs before starting unit. To furnish pewer to heater
only, set dlcrmostat to OFF position and close eleclrical disconnect
to outdoor unit.
A crankcase heater is required if the refrigerant tubing is longer
Ihan 50 ft Rel_r to Residential Split System Long-Line Applica-
tion Guideline.
Step 9--Install Electrical Accessories, If Any
Refer to the individual instructions packaged with the kit or
accessory when insla]ling.