Installation manual

15
ENVISION RESIDENTIAL INSTALLATION MANUAL
Pump Wiring
See Figure 14 for electrical connections
from control box to pumps.
Position the thermostat subbase against the wall so that it is level and the
thermostat wires protrude through the middle of the subbase. Mark the
position of the subbase mounting holes and drill holes with a 3/16-inch bit.
Install supplied anchors and secure base to the wall. Thermostat wire must be
8-conductor, 18-AWG wire. Strip the wires back 1/4-inch (longer strip lengths
may cause shorts) and insert the thermostat wires into the connector as
shown. Tighten the screws to insure secure connections. The thermostat has
the same type connectors, requiring the same wiring. See instructions enclosed
in the thermostat for detailed installation and operation information.
Note: DIP switch SW2-8 is required to be in the “OFF” position for the control
to operate with FaultFlash or ComforTalk thermostats. SW2-8 in the “ON” position configures the control to operate with
typical thermostats (continuous lockout signal). There must be a wire connecting Y2 on the microprocessor controller to
2nd stage compressor on the thermostat for proper operation.
Figure 14: Pump Wiring 208-230/60/1
Figure 15: Thermostat Wiring
R
Y1
C
W
O
G
L
24VAC (Hot)
24VAC (Common)
Compressor (1st Stage)
Aux. Heat
Reversing Valve
Blower Relay
System Monitor
Microprocessor Controller
Thermostat Connection
Y2
Compressor (2nd Stage)
Electrical Connections cont.
Electronic Thermostat Installation
Auxiliary Heat Ratings
KW BTU/HR Min Envision Series Compatibility
Model 208V 230V Stages 208V 230V CFM 022 026 - 030 036 - 042 048 - 072
EAM(H)5 3.6 4.8 1 12,300 16,300 450
• •
EAM(H)8 5.7 7.6 2 19,400 25,900 550
• •
EAM(H)10 7.2 9.6 2 24,600 32,700 650
•
EAL(H)10 7.2 9.6 2 24,600 32,700 1100
• •
EAL(H)15 10.8 14.4 3 36,900 49,100 1250
• •
EAL(H)20 14.4 19.2 4 49,200 65,500 1500
•
"H" is used in part number for horizontal units