Advertisement
NOTE: The indicator lights verify each mode of operation.
Fig. 4 — Apollo Control
WIRING TO
APOLLO
THERMOSTAT
CONTROL
Fig. 5 — Apollo Control Factory-Installed
In Typical Unit
INSTALLATION
Wiring Requirements —
the Temp System are:
THERMOSTAT TO THERMOSTAT COMMUNICATION
BUS — Use 18 gage, 3-conductor, shielded, stranded wire,
color coded (RED, BLACK, GREEN), plenum rated if re-
quired, long enough to run from thermostat to thermostat in
daisy-chain configuration.
THERMOSTAT TO APOLLO CONTROL — Use 18 gage,
5-conductor, shielded, stranded wire, color coded (RED,
WHITE, BLUE, YELLOW, GREEN), plenum rated if re-
quired, long enough to run from thermostat to the Apollo
control. The Apollo control is easily accessible in the
Carrier rooftop unit. It can be found in the control box on 3
CONTROL
WIRING
The wiring requirements for
to 25 ton 48/50 HJ units and 7
is found in the indoor blower section on 3 to 6 ton 48/50TJ
units.
NOTE: Do not run the thermostat communication bus and
the control wire in the same conduit for more than 5 ft. Never
run wires near any cable carrying AC voltage. For further
wiring
information,
distributor.
Factory-supplied power required to each Apollo control is
24 VAC/10 VA. Typical wiring is 18 gage thermostat wire.
Power to the Apollo control may be wired to the
Carrier rooftop unit transformer if of sufficient VA capacity,
otherwise a dedicated transformer has been provided. The
maximum load of a relay contact is 24 VAC, 1 amp. A short
in the field wiring or Carrier rooftop unit will cause non-
warranty damage to the relay board. Test before attaching to
Apollo control.
Call the local Carrier representative if more information
is needed about wiring the Apollo control.
Thermostat Installation —
stallation by determining where the thermostat will be lo-
cated. In most cases, this will be pre-determined by the building
plans.
The thermostat should be located on an interior wall, about
5 ft from the ground. The thermostat should be located away
from direct sunlight, drafts, or interior heat sources which
may influence temperature readings.
The thermostat may also be mounted in a remote location
with the use of an optional remote room sensor. Refer to the
thermostat Application Instructions for more information on
thermostat installation.
Wiring Connections
WIRE APOLLO CONTROL TO THERMOSTAT — Wire
each thermostat to its respective Apollo control as shown in
Fig. 6. Wiring connections should be made at the wiring con-
nector board of the thermostat.
Electric shock can cause injury or death. Ensure power
to the rooftop unit has been disconnected before
wiring.
WIRE THERMOSTAT TO COMMUNICATION BUS — The
thermostat is connected to the communication bus through
the thermostat wiring connection block. Connect the BLACK,
RED, and GREEN wires from the communication bus to the
thermostat wiring connection block. See Fig. 6. To connect
other devices to the communication bus, refer to the appli-
cation manual for that device.
Provide Power To Apollo Control —
ing has been completed, provide power to the Apollo con-
trol. Once power has been provided, the Apollo control will
power the thermostat. The heating or cooling set points will
appear on the thermostat display screen. The thermostat is
now ready to be programmed. If the display is blank or blink-
ing, recheck the wiring connections between the thermostat
and Apollo control.
2
1
⁄
to 25 ton 48/50TJ units. It
2
consult
the
local
Carrier
Begin the thermostat in-
After the wir-
Advertisement
