Optional Controls, Component Mounting Location

OPTIONAL CONTROLS

FIGURE 5

COMPONENT MOUNTING LOCATION

CMA-5 & CMA-13A LOW

CMA-5 COMPRESSOR

AMBIENT FAN CYCLING

TIME DELAY RELAY

CONTROL

TERMINAL BLOCK

	SK109 LOW VOLTAGE	CMA-10A & CMA-13A
	START KIT	CMA-10A & CMA-13A
	START KIT	COMPRESSOR
		COMPRESSOR
		CONTROL

MIS-1302

INSTALLATION INSTRUCTIONS — CMA-5

Disconnect all power to the unit. Remove control panel cover.

1.Mount compressor TDR in position shown in Figure 5 with screw provided.

2.Disconnect yellow low voltage (Y) wire at the compressor contactor coil and reconnect to the Y1 or #3 terminal of the TDR.

3.Connect yellow wire from terminal (Y) of the TDR to the (Y) terminal of the compressor contactor coil. This is the terminal that the wire was removed from in Step 2.

4.Recheck wiring. Refer to Figure 9. Energize unit. Compressor should start. Remove power and reapply. Compressor should not start until the 5 minute time delay has expired.

5.Apply “This unit equipped with CMA-5 control module” label to inside of the inner control panel cover above wiring diagram.

6.Replace all panels and covers. This completes installation.

FIGURE 6

INSTALLATION INSTRUCTIONS

FOR CMA-5 COMPRESSOR TIME DELAY RELAY

MIS-598

INSTALLATION INSTRUCTIONS — CMA-6

Disconnect all power to unit. Remove control panel inner and outer cover.

1.Mount terminal block in position shown in Figure 5.

2.Disconnect black high voltage outdoor motor lead from compressor contactor and reconnect to terminal block.

3.Route low ambient control wires up through the bushing in the bottom of the control panel. Connect the low ambient control wires between the terminal block and T2 of the compressor contactor.

4.Remove service port cap on discharge line. Install the low ambient control on the discharge line with the flare tee adapter that is brazed to the low ambient control. Check for pressure at the flare tee dill valve after installation to insure that the dill valve in the unit service port was depressed by the flare tee connector. Check for leaks at the flare tee connectors. Replace service port cap on the flare tee service port and tighten.

5.Recheck wiring. See Figure 10. Check for proper operation of the unit by energizing in cooling mode. The condenser fan motor should not run until the discharge pressure has exceeded 300 PSI. Should the discharge pressure fall below 200 PSI while running, the condenser fan motor will de-energize until the head pressure builds to 300 PSI.

6.Apply “This unit equipped with CMA-6 control module” label to the inside of the control panel cover above the wiring diagrams.

7.Replace all panels and covers. This completes installation.

FIGURE 7

INSTALLATION INSTRUCTIONS FOR

CMA-6 LOW AMBIENT FAN CYCLING CONTROL

MIS-594

Manual 2100-346 Page 12

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