EMI WLHA, S1C manual Straight Cool, Choosing a Remote Wall Mounted

WLCA/WLHA HIGH WALL EVAPORATOR Installation Instructions

Low Volt Interconnect wiring for Unit mounted controls

Units With or without heat continued

Unit mount controls	Heat pump connection
Straight Cool	Unit mount controls
	Two-Stage Heating
Figure 1A	Figure 1B

Not used Not used

Low volt interconnect diagram intercon- nect diagram figure 1A and figure 1B for unit mounted controls.

When connecting to a defrosting heat pump, such as EMI model S1HA, indoor units with electric heat utilize five intercon-

necting low volt wires between the indoor and outdoor units.

Remote Thermostat Controls

The 24V control transformer is located in the air handler unit. This

provides low volt control power toFigure 2 A both the air handler and condenser.

Depending on the models selected, the interconnect control wiring may be effected.

Note: All low volt interconnect wiring must be at least 18 awg.

Note: For remote thermostat mode the key pad will have limited opera- tion - Sequence of Operation - Wall Mounted Thermostat, page 21.

Choosing a Remote Wall Mounted

Thermostat: See “Wall Thermostat

Control” section page 21.

WLCA/WLHA High Wall Evaporator 8 www.enviromaster.com