Brochure

48
1213
5
tech. broch. 01170
Off-center by-pass assembly with fi xed
crack setting of 3.6 psi differential pressure.
Max working pressure: 150 psi.
Working temperature range: 15—230°F.
668
Code Description Lbs USD
668000 ½" x ½" 0.5 117.80
BATH
CALEFFI
CALEFFI
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
HOBBY WC
BEDROOM
CAMERA
CALEFFI
BATHHOBBY WC
BEDROOM
CAMERA
CALEFF
CALEFFI
CALEFFI
F
F
The by-bass valve contains a check valve
connected to a contact spring. When
the fi xed setting pressure is reached, the
valve disk gradually opens, recirculating
the fl ow in proportion to the closing of the
thermo-electric valves and maintaining
a constant differential pressure in the
manifold circuit.
The differential by-pass assembly features
a fi xed setting that cannot be changed.
The small, compact size and offset
connections makes this kit particularly
easy to mount after installing thermo-
electric valves on the manifold. It does not
require a larger or deeper zone box than
those used for normal manifolds.
Low current draw thermo-electric actuator
for use with 663 and 668S1 series
distribution manifolds
Hermetically sealed for upside down installation..
Pop-up feature
Power supply: 24 V AC/DC.
Initial current draw: ≤ 250 mA.
Power consumption: 3 W.
Rating of micro-switch contacts: 5 A (24 V).
31.5" wire lead connection.
6564
tech. broch. 01198
Code Description Lbs USD
656404 24 V AC/DC 0.4 103.30
656414 24 V AC/DC with micro-switch 0.4 129.20
TwisTop™ thermo-electric actuator for use
with return manifolds.
Twist the top to manually open.
Power supply: 24 V AC/DC.
Initial current draw: 800 mA.
Power consumption: 3 W.
Rating of micro-switch contacts: 5 A (24 V).
31.5" wire lead connection.
US Patent 7,617,989 B2.
6563
TwisTop
™
tech. broch. 01170
Code Description Lbs USD
656304 24 V AC/DC 0.4 137.70
656314 24 V AC/DC with micro-switch 0.4 163.40
656314R 24 V AC/DC with micro-switch Rehau 0.4 178.10
Simply twist to manually open
actuator (and activate auxiliary
switch on 656314).
When power is applied,
it returns to Auto position.
Green ring indicates valve
is open.