Table of Contents
Advertisement
3.12.9 THERMOSTAT & CONTROL WIRING CONNECTIONS
NOTE: These low voltage application diagrams are generic. Your indoor/
outdoor units may not have all the characteristics shown or may not wire
exactly as shown. Refer to the diagrams and information sent with your
indoor/outdoor sections.
FIGURE 8
TYPICAL THERMOSTAT: STRAIGHT COOLING W / ELECTRIC HEAT
20
3.12.8 CONTROL WIRING
IMPORTANT: Class 2 low voltage control wire should not be run in conduit with power
wiring and must be separated from power wiring, unless class 1 wire of proper voltage
rating is used.
• Low voltage control wiring should be 18 Awg. color-coded. For lengths longer than
100 ft., 16 Awg. wire should be used.
• Low voltage control connections are made to low voltage pigtails extending from top
of air handler. Connections for control wiring are made with wire nuts. Control wiring
knockouts are also provided on the left side of the unit.
• See wiring diagrams attached to indoor and outdoor sections to be connected, or
control wiring diagram booklet supplied with outdoor heat pump section for wiring
connection.
• Make sure, after installation, separation of control wiring and power wiring has been
maintained.
**
For 13kW or higher, W1 and
W2 can be connected together for
maximum outlet temperature rise.
*(-)F1P has no Y connection.
Connect Y on outdoor unit directly
to Y on thermostat on (-)F1P.
3.13 AIR-FLOW PERFORMANCE
Airflow performance data is based on cooling performance with a coil and filter in place.
Select performance table for appropriate unit size, voltage and number of electric heat-
ers to be used. Make sure duct system external static pressure applied to unit allows
operation within the minimum and maximum limits shown in Section 3.13.1 below for
both cooling and electric heat operation. See Section 3.13.3 for air-flow performance
over a range of external static pressures for each speed tap.
3.13.1 GENERAL AIR-FLOW OPERATING LIMITS
Cooling Tons Nominal
Heat Pump or Air Conditioning
Maximum Heat/Cool CFM [L/s]
(37.5 CFM [18 L/s]/1,000 BTUH)
(450 CFM [212 L/s]/Ton Nominal)
Heat Pump or Air Conditioning
Nominal Heat/Cool CFM [L/s]
(33.3 CFM [16 L/s]/1,000 BTUH)
(400 CFM [189 L/s]/Ton Nominal)
Heat Pump or Air Conditioning
Minimum Heat/Cool CFM [L/s]
(30.0 CFM [14 L/s]/1,200 BTUH)
(360 CFM [170 L/s]/Ton Nominal)
Maximum kW Electric Heating
10
& Minimum Electric Heat CFM [L/s]
Maximum Electric Heat Rise °F [°C]
WIRE COLOR CODE:
BK - BLACK
G - GREEN
BR - BROWN
GY - GRAY
GL - BLUE
O - ORANGE
FIGURE 9
TYPICAL THERMOSTAT: HEAT PUMP W / ELECTRIC HEAT
1.5
2
675
900
[319]
[425]
600
800
[283]
[378]
540
720
[255]
[340]
8
10
450 [212]
690 [325]
53° [11.65]
93° [33.8]
P - PINK
W - WHITE
PR - PURPLE
Y - YELLOW
R - RED
**
For 13kW or higher, W1 and
W2 can be connected together for
maximum outlet temperature rise.
*(-)F1P has no Y connection.
Connect Y on outdoor unit directly
to Y on thermostat on (-)F1P.
2.5
3
1125
1350
[531]
[637]
1000
1200
[472]
[566]
900
1080
[425]
[510]
10
690 [325]
690 [325]
93° [33.8]
93° [33.8]
Advertisement
Table of Contents
