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.
A
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.