40
BCX-SVX002A-EN
Figure 28. 2-way PIQCV valve
NOTES:
1. ALL COPPER PIPES, REDUCERS, ADAPTERS, TEES, AND ELBOWS ARE TO BE FIELD SUPPLIED.
2. REMOVE ACTUATOR BEFORE SOLDERING PIPES.
PIC VALVE AND
ACTUATOR
MAIN
RETURN
COIL
RETURN
MAIN
SUPPLY
COIL
SUPPLY
STRAINER
SHUT OFF VALVE
SHUT OFF VALVE
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
Valve Selection
Clip Position
Stroke Time
(seconds)
2.3 Cv, 3/4 in. 2-way
valve
4 49
3.3 Cv, 3/4 in. 2-way
valve
5 55
4.6 Cv, 3/4 in. 2-way
valve
6 62
1.0 Cv, 1/2 in. 3-way
valve
No end stop
75
2.7 Cv, 1/2 in. 3-way
valve
No end stop
75
4.6 Cv, 3/4 in. 3-way
valve
No end stop
75
7.4 Cv, 1 in. 2-way and
3-way valve isolation
N/A 75
10.0 Cv, 1 in. 2-way
and 3-way valve
isolation
N/A 75
Table 19. Valve stroke time (continued)
Valve Selection
Clip Position
Stroke Time
(seconds)
7.4 Cv, 1 in. 2-way and
3-way valve modulating
N/A 90
10.0 Cv, 1 in. 2-way
and 3-way valve
modulating
N/A 90
0.9, 2.0, 4.3, and 9.0
GPM 2-way PIC valve
N/A 75
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 Table
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.
Dimensions and Weights
To Next Page
Loading...
