Valve And Actuator Operation - Trane BCHE Installation, Operation And Maintenance Manual

Dimensions and Weights
Figure 28. 2-way PIQCV valve
COIL
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NOTES:
1. ALL COPPER PIPES, REDUCERS, ADAPTERS, TEES, AND ELBOWS ARE TO BE FIELD SUPPLIED.
2. REMOVE ACTUATOR BEFORE SOLDERING PIPES.
Valve and Actuator Operation (All valves
except for 7.4 Cv and 10.0 Cv)
• Two position actuators, normally open (N.O.) or
normally closed (N.C.), are capacitor discharge return.
• Modulating actuators are fail in place.
• All actuators are clockwise to close, counterclockwise
to open as seen from the top wire harness side of the
actuator.
Valve Stroke Time
Table 19. Valve stroke time
Clip Position
Valve Selection
2.3 Cv, 3/4 in. 2-way
valve
3.3 Cv, 3/4 in. 2-way
valve
4.6 Cv, 3/4 in. 2-way
valve
1.0 Cv, 1/2 in. 3-way
No end stop
valve
2.7 Cv, 1/2 in. 3-way
No end stop
valve
4.6 Cv, 3/4 in. 3-way
No end stop
valve
7.4 Cv, 1 in. 2-way and
3-way valve isolation
10.0 Cv, 1 in. 2-way
and 3-way valve
isolation
40
COIL
SUPPLY
Stroke Time
(seconds)
4 49
5 55
6 62
75
75
75
N/A 75
N/A 75
STRAINER
PIC VALVE AND
ACTUATOR
Table 19. Valve stroke time (continued)
Valve Selection
7.4 Cv, 1 in. 2-way and
3-way valve modulating
10.0 Cv, 1 in. 2-way
and 3-way valve
modulating
0.9, 2.0, 4.3, and 9.0
GPM 2-way PIC valve
Field-Set Flow Capacity Adjustment (All valves except
for 7.4 Cv and 10.0 Cv)
• If a different Cv is required, locate the new Cv in
20, p. 41 and move the clip to the corresponding
setting.
• For 3-point floating, control signals adjust the controller
stroke time parameter to match the stroke time of the of
the final clip position.
• For all 3-way valves, the stroke time is 75 seconds and
there is no end stop on the actuator.
• The Cv cannot be changed for 3-way valves.
SHUT OFF VALVE
SHUT OFF VALVE
Stroke Time
Clip Position
(seconds)
N/A 90
N/A 90
N/A 75
BCX-SVX002A-EN
MAIN
SUPPLY
MAIN
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Table