Brochure

46
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
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
TwisTop™ thermo-electric actuator for use
with return manifolds.
Twist the top to manually open.
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.
US Patent 7,617,989 B2.
6563
TwisTop
™
tech. broch. 01170
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is open.
Code Description Lbs USD
668000
½" x ½"
0.5 123.10
Code Description Lbs USD
656404 24 V AC/DC 0.4 107.90
656414 24 V AC/DC with micro-switch 0.4 135.00
Code Description Lbs USD
656344 24 V AC/DC 0.4 143.90
656354 24 V AC/DC with micro-switch 0.4 170.80
656354R 24 V AC/DC with micro-switch Rehau 0.4 186.10
NEW
NEW
TwisTop™ thermo-electric actuator fi ts on
676 two-way valve.
Power supply: 24 V AC/DC.
Initial current draw: 800 mA.
Power consumption:
holding: 3 W
inrush: 19 VA
31.5" wire lead connection.
US Patent 7,617,989 B2.
6563
TwisTop
™
tech. broch. 01072
Code Description Lbs USD
656304 24 V AC/DC 0.4 143.90