Trane RAUJ-C20 Installation, Operation And Maintenance Manual page 74

I I n n s s t t a a l l l l a a t t i i o o n n E E l l e e c c t t r r i i c c a a l l
Figure 49. Field connection diagram RAUJ 80 to 120 tons — all system control
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ISOLATION LIQUID SOLENOID VALVES (6L1, 6L3) ARE REQUIRED FOR CHARGE ISOLATION (PROVIDED
& INSTALLED BY THE FIELD). UNLOADING LIQUID SOLENOID VALVES (6L2, 6L4), IF APPLICABLE,
ARE PROVIDED & INSTALLED BY THE FIELD.
Variable Air Volume Control
(Honeywell W7100A)
In a variable air volume system, the desired space
temperature is maintained by varying the amount of
conditioned air being delivered to the space. As the
cooling requirements of the space decreases, less air is
delivered to the zone; conversely, as the cooling
requirements of the space increases, a greater volume
of air is delivered to the zone.
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The descriptions of the following basic input devices
used with the Honeywell W7100A discharge air
controller are to acquaint the operator with their
function as they interface with the controller. Refer to
field connection diagram numbers 2307-9122 (for 20-
60) and 2307-9144 (for 80-120) for the specific
component connections at the unit control panel.
For discussion of evaporator fan interlock, hot gas
bypass, and economizer connections, see
Requirements," p. 63.
"Wiring
SS-SVX11K-EN