Installation, Temp System Communication

APOLLO CONTROL — The Apollo control (see Fig. 4) has the following features:

•serves as interface between thermostat, Carrier rooftop unit, and any external field-supplied sensors

•powered by 24 vac/10 va; supplies thermostat with 10 vdc. This power is supplied by the Carrier rooftop unit.

The Apollo control must be used in conjunction with a Carrier 33CSTM(T)-01 or 33CSVM(T)-XX master thermo- stat. Figure 5 shows the Apollo control factory-installed in a rooftop unit.

*Where “XX” will be “04,” “16,” or “32.”

Fig. 2 — TEMP System Communication

Fig. 3 — TEMP System Thermostat

(With Timeclock Shown)

NOTE: The indicator lights verify each mode of operation.

Fig. 4 — Apollo Control

WIRING TO	APOLLO	CONTROL
THERMOSTAT	CONTROL	WIRING

Fig. 5 — Apollo Control Factory-Installed

In Typical Unit

INSTALLATION

Wiring Requirements — The wiring requirements for the TEMP System are:

THERMOSTAT TO THERMOSTAT COMMUNICATION BUS — Use field-supplied, 18 gage, 3-conductor, shielded, stranded wire, color coded (red, black, green), plenum rated (if required by code). Be sure wire is long enough to run from thermostat to thermostat in daisy-chain configuration.

THERMOSTAT TO APOLLO CONTROL — Use field- supplied, 18 gage, 5-conductor, shielded, stranded wire, color-coded (red, white, blue, yellow, green), plenum rated (if required by code). Be sure wire is long enough to run from thermostat to the Apollo control. The Apollo control is easily accessible in the Carrier rooftop unit. It is found in the unit control box.

IMPORTANT: 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, consult your local Carrier distributor.

Factory-supplied power required by 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 transformer is of sufficient va capacity. Other- wise, a dedicated transformer has been factory 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 wiring before attaching to Apollo control.

Call your local Carrier representative for more information about wiring the Apollo control as needed.

TM004-014, TM016-028, 48/50TF, 50HJQ004-016, 48/50TJ specifications

Carrier has long been a leader in the heating, ventilation, and air conditioning (HVAC) industry, and their line of rooftop units, including the models 50TFQ004-012, 48/50HJ004-024, 48/50TJ, 50HJQ004-016, and 48/50TF, exemplifies their commitment to innovation and efficiency. These units are designed to meet the diverse needs of commercial buildings while providing precise climate control, reliability, and efficiency.

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