Warren Controls PICV Series - Manual (Page 17)

17
PRESSURE INDEPENDENT CONTROL VALVE PICV_IOM_REVF_0114
Full Range Split Range
0 - 10 vdc 0 - 5 vdc 5 - 10 vdc
2 - 10 vdc 2 - 6 vdc 6 - 10 vdc
0 - 20 ma 0 - 10 ma 10 - 20 ma
4 - 20 ma 4 - 12 ma 12 - 20 ma
Split ranges allow two actuators to be operated in sequence from
one full range signal. Proportional signals are programmed with
switches 1 - 5. The actuators are set for floating control by turning
on switch #6. Turning switch #6 on deactivates switches 1 - 5.
Please note the wiring for floating control differs from the wiring for
proportional control.
SELECTING THE SIGNAL
Floating Switch #6 ON
When switch #6 is on
switches 1-5 are inactive.
Proportional Switch #6 OFF
SIGNAL SWITCH NUMBER
VOLTS 1 2 4 5
2 - 10 OFF OFF OFF OFF
0 - 10 OFF ON OFF OFF
2 - 6 OFF OFF ON OFF
6 - 10 OFF OFF ON ON
0 - 5 OFF ON ON OFF
5 - 10 OFF ON ON ON
SIGNAL SWITCH NUMBER
MILLIAMPS 1 2 4 5
4 - 20 ON OFF OFF OFF
0 - 20 ON ON OFF OFF
4 - 12 ON OFF ON OFF
12 - 20 ON OFF ON ON
0 - 10 ON ON ON OFF
10 - 20 ON ON ON ON
DIRECT OR REVERSE ACTING
An increasing signal can either drive the valve stem down
(direct acting) or up (reverse acting).
Reverse Acting Switch #3 ON
Properly selected and sized control valves utilize the default
(OFF) positions for switches #7 & #8.
Contact Warren Controls (Ph: 800-922-0085) before repositioning
either switch.
FLOW CHARACTERISTIC:
Change Flow Characteristic Switch #7
IN THE OFF POSITION STEM TRAVEL IS PROPORTIONAL TO CON-
TROL SIGNAL AND DOES NOT ALTER THE FLOW CHARACTERISTIC OF
VALVE. THIS IS THE POSITION SWITCH #7 SHOULD BE IN NORMALLY.
When the stem travel of an actuator is proportional to the control
signal, the shape (flow characteristic) of the valve’s plug determines
the flow. PICV valves have an equal percentage flow characteristic.
An equal percentage valve opens slowly at the start so that 25%
stem travel results in less than 25% flow. When Switch #7 is in the
ON position the stroke is electronically adjusted so that an equal
percentage valve performs as if it had a linear flow characteristic. A
linear valve opens so that 25% stem travel results in 25% flow.
EQUAL PERCENTAGE VALVE & SWITCH #7 OFF EQUAL PERCENTAGE VALVE & SWITCH #7 ON
NOTE: Previous models were equipped with three movable jumpers in place of the 9-switch block for actuator setup. For information about them contact
Warren Controls (Ph: 800-922-0085).
6
Properly selected and sized control valves utilize the default (OFF) positions for switches #7 & #8. Contact
Warren Controls (Ph: 800-922-0085) before repositioning either switch.
Flow Characteristic:
Change Flow Characteristic Switch #7
In the OFF position the stem travel is proportional to the control signal and does not alter the fl ow characteristic of the valve. This
is the position this switch should be in normally. In the ON position the stroke is electronically adjusted so that an equal percent-
age valve performs as a linear valve and a linear valve performs as a quick opening valve. Most 2-way control valves have an
equal percentage fl ow characteristic. Usually the stem travel of an actuator is proportional to the control signal and the valve plug
is shaped to adjust the fl ow. An equal percentage valve opens slowly at the start so that 25% stem travel results in less than 25%
fl ow. Mixing valves usually have plugs that are linear on both ports so that the total fl ow through the valve doesn’t change with
the stem position. Switch #7 should be OFF when you use mixing valves. Occasionally, you may want switch #7 to be ON.
If you have an equal percentage valve and you want to control the volume of liquid such as the depth of water in a tank changing
to a linear valve characteristic may work better. Steam heat depends on the quantity of steam per hour condensed. Consequently,
a linear valve may work better. In these cases, turn Switch #7 ON. If you are using a linear valve in one of these applications,
then leave switch #7 OFF.
Direct or Reverse Acting
An increasing signal can either drive the valve stem down (direct acting) or up (reverse acting).
Direct Acting Switch #3 OFF
Reverse Acting Switch #3 ON
NOTE:
Previous models were equipped with three movable jumpers in place of the 9-switch block for actuator setup.
For information about them contact Warren Controls (Ph: 800-922-0085).
Equal Percentage Valve & Switch #7 Off
Actuator
Signal
St
ro
ke
Stroke
Fl
ow
Valve
Fl
ow
Valve + Actuator
Signal
Equal percentage Valve & Switch #7 On
Fl
ow
Valve
Stroke
Fl
ow
Valve + Actuator
Signal
Actuator
St
ro
ke
Signal
Flow Coeffi cient
Full Flow Switch #8 OFF
Reduced Flow Switch #8 ON
This function only works when switch #7 is off.
Turning switch #8 on reduces the valve stroke and then sets the control signal over the range of the reduced stroke. The result is
that the valve never fully opens and it performs like a smaller valve.
6
Properly selected and sized control valves utilize the default (OFF) positions for switches #7 & #8. Contact
Warren Controls (Ph: 800-922-0085) before repositioning either switch.
Flow Characteristic:
Change Flow Characteristic Switch #7
In the OFF position the stem travel is proportional to the control signal and does not alter the fl ow characteristic of the valve. This
is the position this switch should be in normally. In the ON position the stroke is electronically adjusted so that an equal percent-
age valve performs as a linear valve and a linear valve performs as a quick opening valve. Most 2-way control valves have an
equal percentage fl ow characteristic. Usually the stem travel of an actuator is proportional to the control signal and the valve plug
is shaped to adjust the fl ow. An equal percentage valve opens slowly at the start so that 25% stem travel results in less than 25%
fl ow. Mixing valves usually have plugs that are linear on both ports so that the total fl ow through the valve doesn’t change with
the stem position. Switch #7 should be OFF when you use mixing valves. Occasionally, you may want switch #7 to be ON.
If you have an equal percentage valve and you want to control the volume of liquid such as the depth of water in a tank changing
to a linear valve characteristic may work better. Steam heat depends on the quantity of steam per hour condensed. Consequently,
a linear valve may work better. In these cases, turn Switch #7 ON. If you are using a linear valve in one of these applications,
then leave switch #7 OFF.
Direct or Reverse Acting
An increasing signal can either drive the valve stem down (direct acting) or up (reverse acting).
Direct Acting Switch #3 OFF
Reverse Acting Switch #3 ON
NOTE:
Previous models were equipped with three movable jumpers in place of the 9-switch block for actuator setup.
For information about them contact Warren Controls (Ph: 800-922-0085).
Equal Percentage Valve & Switch #7 Off
Actuator
Signal
St
ro
ke
Stroke
Fl
ow
Valve
Fl
ow
Valve + Actuator
Signal
Equal percentage Valve & Switch #7 On
Fl
ow
Valve
Stroke
Fl
ow
Valve + Actuator
Signal
Actuator
St
ro
ke
Signal
Flow Coeffi cient
Full Flow Switch #8 OFF
Reduced Flow Switch #8 ON
This function only works when switch #7 is off.
Turning switch #8 on reduces the valve stroke and then sets the control signal over the range of the reduced stroke. The result is
that the valve never fully opens and it performs like a smaller valve.
6
Properly selected and sized control valves utilize the default (OFF) positions for switches #7 & #8. Contact
Warren Controls (Ph: 800-922-0085) before repositioning either switch.
Flow Characteristic:
Change Flow Characteristic Switch #7
In the OFF position the stem travel is proportional to the control signal and does not alter the fl ow characteristic of the valve. This
is the position this switch should be in normally. In the ON position the stroke is electronically adjusted so that an equal percent-
age valve performs as a linear valve and a linear valve performs as a quick opening valve. Most 2-way control valves have an
equal percentage fl ow characteristic. Usually the stem travel of an actuator is proportional to the control signal and the valve plug
is shaped to adjust the fl ow. An equal percentage valve opens slowly at the start so that 25% stem travel results in less than 25%
fl ow. Mixing valves usually have plugs that are linear on both ports so that the total fl ow through the valve doesn’t change with
the stem position. Switch #7 should be OFF when you use mixing valves. Occasionally, you may want switch #7 to be ON.
If you have an equal percentage valve and you want to control the volume of liquid such as the depth of water in a tank changing
to a linear valve characteristic may work better. Steam heat depends on the quantity of steam per hour condensed. Consequently,
a linear valve may work better. In these cases, turn Switch #7 ON. If you are using a linear valve in one of these applications,
then leave switch #7 OFF.
Direct or Reverse Acting
An increasing signal can either drive the valve stem down (direct acting) or up (reverse acting).
Direct Acting Switch #3 OFF
Reverse Acting Switch #3 ON
NOTE:
Previous models were equipped with three movable jumpers in place of the 9-switch block for actuator setup.
For information about them contact Warren Controls (Ph: 800-922-0085).
Equal Percentage Valve & Switch #7 Off
Actuator
Signal
St
ro
ke
Stroke
Fl
ow
Valve
Fl
ow
Valve + Actuator
Signal
Equal percentage Valve & Switch #7 On
Fl
ow
Valve
Stroke
Fl
ow
Valve + Actuator
Signal
Actuator
St
ro
ke
Signal
Flow Coeffi cient
Full Flow Switch #8 OFF
Reduced Flow Switch #8 ON
This function only works when switch #7 is off.
Turning switch #8 on reduces the valve stroke and then sets the control signal over the range of the reduced stroke. The result is
that the valve never fully opens and it performs like a smaller valve.
6
Properly selected and sized control valves utilize the default (OFF) positions for switches #7 & #8. Contact
Warren Controls (Ph: 800-922-0085) before repositioning either switch.
Flow Characteristic:
Change Flow Characteristic Switch #7
In the OFF position the stem travel is proportional to the control signal and does not alter the fl ow characteristic of the valve. This
is the position this switch should be in normally. In the ON position the stroke is electronically adjusted so that an equal percent-
age valve performs as a linear valve and a linear valve performs as a quick opening valve. Most 2-way control valves have an
equal percentage fl ow characteristic. Usually the stem travel of an actuator is proportional to the control signal and the valve plug
is shaped to adjust the fl ow. An equal percentage valve opens slowly at the start so that 25% stem travel results in less than 25%
fl ow. Mixing valves usually have plugs that are linear on both ports so that the total fl ow through the valve doesn’t change with
the stem position. Switch #7 should be OFF when you use mixing valves. Occasionally, you may want switch #7 to be ON.
If you have an equal percentage valve and you want to control the volume of liquid such as the depth of water in a tank changing
to a linear valve characteristic may work better. Steam heat depends on the quantity of steam per hour condensed. Consequently,
a linear valve may work better. In these cases, turn Switch #7 ON. If you are using a linear valve in one of these applications,
then leave switch #7 OFF.
Direct or Reverse Acting
An increasing signal can either drive the valve stem down (direct acting) or up (reverse acting).
Direct Acting Switch #3 OFF
Reverse Acting Switch #3 ON
NOTE:
Previous models were equipped with three movable jumpers in place of the 9-switch block for actuator setup.
For information about them contact Warren Controls (Ph: 800-922-0085).
Equal Percentage Valve & Switch #7 Off
Actuator
Signal
St
ro
ke
Stroke
Fl
ow
Valve
Fl
ow
Valve + Actuator
Signal
Equal percentage Valve & Switch #7 On
Fl
ow
Valve
Stroke
Fl
ow
Valve + Actuator
Signal
Actuator
St
ro
ke
Signal
Flow Coeffi cient
Full Flow Switch #8 OFF
Reduced Flow Switch #8 ON
This function only works when switch #7 is off.
Turning switch #8 on reduces the valve stroke and then sets the control signal over the range of the reduced stroke. The result is
that the valve never fully opens and it performs like a smaller valve.
6
Properly selected and sized control valves utilize the default (OFF) positions for switches #7 & #8. Contact
Warren Controls (Ph: 800-922-0085) before repositioning either switch.
Flow Characteristic:
Change Flow Characteristic Switch #7
In the OFF position the stem travel is proportional to the control signal and does not alter the fl ow characteristic of the valve. This
is the position this switch should be in normally. In the ON position the stroke is electronically adjusted so that an equal percent-
age valve performs as a linear valve and a linear valve performs as a quick opening valve. Most 2-way control valves have an
equal percentage fl ow characteristic. Usually the stem travel of an actuator is proportional to the control signal and the valve plug
is shaped to adjust the fl ow. An equal percentage valve opens slowly at the start so that 25% stem travel results in less than 25%
fl ow. Mixing valves usually have plugs that are linear on both ports so that the total fl ow through the valve doesn’t change with
the stem position. Switch #7 should be OFF when you use mixing valves. Occasionally, you may want switch #7 to be ON.
If you have an equal percentage valve and you want to control the volume of liquid such as the depth of water in a tank changing
to a linear valve characteristic may work better. Steam heat depends on the quantity of steam per hour condensed. Consequently,
a linear valve may work better. In these cases, turn Switch #7 ON. If you are using a linear valve in one of these applications,
then leave switch #7 OFF.
Direct or Reverse Acting
An increasing signal can either drive the valve stem down (direct acting) or up (reverse acting).
Direct Acting Switch #3 OFF
Reverse Acting Switch #3 ON
NOTE:
Previous models were equipped with three movable jumpers in place of the 9-switch block for actuator setup.
For information about them contact Warren Controls (Ph: 800-922-0085).
Equal Percentage Valve & Switch #7 Off
Actuator
Signal
St
ro
ke
Stroke
Fl
ow
Valve
Fl
ow
Valve + Actuator
Signal
Equal percentage Valve & Switch #7 On
Fl
ow
Valve
Stroke
Fl
ow
Valve + Actuator
Signal
Actuator
St
ro
ke
Signal
Flow Coeffi cient
Full Flow Switch #8 OFF
Reduced Flow Switch #8 ON
This function only works when switch #7 is off.
Turning switch #8 on reduces the valve stroke and then sets the control signal over the range of the reduced stroke. The result is
that the valve never fully opens and it performs like a smaller valve.
6
Properly selected and sized control valves utilize the default (OFF) positions for switches #7 & #8. Contact
Warren Controls (Ph: 800-922-0085) before repositioning either switch.
Flow Characteristic:
Change Flow Characteristic Switch #7
In the OFF position the stem travel is proportional to the control signal and does not alter the fl ow characteristic of the valve. This
is the position this switch should be in normally. In the ON position the stroke is electronically adjusted so that an equal percent-
age valve performs as a linear valve and a linear valve performs as a quick opening valve. Most 2-way control valves have an
equal percentage fl ow characteristic. Usually the stem travel of an actuator is proportional to the control signal and the valve plug
is shaped to adjust the fl ow. An equal percentage valve opens slowly at the start so that 25% stem travel results in less than 25%
fl ow. Mixing valves usually have plugs that are linear on both ports so that the total fl ow through the valve doesn’t change with
the stem position. Switch #7 should be OFF when you use mixing valves. Occasionally, you may want switch #7 to be ON.
If you have an equal percentage valve and you want to control the volume of liquid such as the depth of water in a tank changing
to a linear valve characteristic may work better. Steam heat depends on the quantity of steam per hour condensed. Consequently,
a linear valve may work better. In these cases, turn Switch #7 ON. If you are using a linear valve in one of these applications,
then leave switch #7 OFF.
Direct or Reverse Acting
An increasing signal can either drive the valve stem down (direct acting) or up (reverse acting).
Direct Acting Switch #3 OFF
Reverse Acting Switch #3 ON
NOTE:
Previous models were equipped with three movable jumpers in place of the 9-switch block for actuator setup.
For information about them contact Warren Controls (Ph: 800-922-0085).
Equal Percentage Valve & Switch #7 Off
Actuator
Signal
St
ro
ke
Stroke
Fl
ow
Valve
Fl
ow
Valve + Actuator
Signal
Equal percentage Valve & Switch #7 On
Fl
ow
Valve
Stroke
Fl
ow
Valve + Actuator
Signal
Actuator
St
ro
ke
Signal
Flow Coeffi cient
Full Flow Switch #8 OFF
Reduced Flow Switch #8 ON
This function only works when switch #7 is off.
Turning switch #8 on reduces the valve stroke and then sets the control signal over the range of the reduced stroke. The result is
that the valve never fully opens and it performs like a smaller valve.
SWITCH 8: FACTORY DEFAULT OFF
The correct position for Switch #8 is OFF.
Do not use the Switch #8 ON. If Switch #8 is ON the valve will not function properly as a PICV.