Page 74
FIGURE 98
HONEYWELL W973 CONTROL
INSTALLATION with ECONOMIZER
W973 RELAY KIT
W973 CONTROL
GCS16 UNIT
SUPPLY AIR
BLOWER
HARNESS FROM UNIT
DOWNFLOW
RETURN AIR
OPENING
CONTROL MOUNTING BRACKET
HORIZONTAL UNITS
CONTROL MOUNTING BOX
DOWNFLOW UNITS
P3 J6
J3
P6
P17J16
W973 CONTROL
W973 RELAY KIT
P4
P16
J17
ECONOMIZER
HARNESS
CAUTION - HARNESS BUNDLES MUST BE SE
CURED WITH WIRE TIES AWAY FROM DAMPER
BLADES. FAILURE TO SECURE WIRES COULD
RENDER ECONOMIZER INOPERABLE.
FIGURE 99
HONEYWELL W973 RELAY KIT
AND WARM UP KIT INSTALLATION
W973 RELAY
KIT
W973 CONTROL
GCS16 UNIT
SUPPLY AIR
BLOWER
HARNESS FROM UNIT
DOWNFLOW
RETURN AIR
OPENING
CONTROL MOUNTING BRACKET
HORIZONTAL UNITS
CONTROL MOUNTING BOX
DOWNFLOW UNITS
W973 CONTROL
W973 RELAY KIT
ECONOMIZER
HARNESS
WARM-UP KIT
P4
J8
P17
P16
J17
J16
J3P6
J6
P8
WARM-UP
KIT
P3
CAUTION - HARNESS
BUNDLES MUST BE SE
CURED WITH WIRE TIES
AWAY FROM DAMPER
BLADES. FAILURE TO SE
CURE WIRES COULD REN
DER ECONOMIZER INOP
ERABLE.
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