Honeywell Y594G User Manual

Page 2

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For a wall Installation, hold subbase In position and

mark holes for anchors (Fig. 2). Wall anchors must be

obtained from local hardware store. Take care that the

wires do not fall back into the wall opening. Set subbase
aside. Drill four 3/16 in. [4.8 mm] holes and gently tap
anchors into the holes until flush with the wall.

2. Pull wires through the cover plate (if used) and

subbase cable opening (Fig. 3).

3. Secure the cover plate (if used) and subbase with

the screws provided. Do not fully tighten the subbase

screws.

CONTACTS ON THE
THERMOSTAT

(UP TO 12)

Fig. 3—Subbase components and leveling procedure.

2\ SELECT EITHER COOL (0) OR HEAT (B) CHANGEOVER. C-CO AND Cl

“MAKE" SEQUENTIALLY ON TEMP. RISE, H-CO. HI AND H2 “MAKE”
SEQUENTIALLY ON TEMP. FALL.

Fig. 4— Internal schematic and typicai hookup of T874G and Q674F in heat pump system.