Use And Care Manual

Thermo-electric actuators
656104
656114
With auxiliary microswitch
224
224
6561
Thermo-electric actuator.
For series 663 and 668S1 manifolds.
Normally closed.
Code Voltage (V)
Technical specification
- Materials: - protection shell self-extinguishing polycarbonate
- color white
version with micro: grey
- Normally closed
- Electric supply: 24 V
(ac)
- Starting current: 800 mA
- Working current: 24 V (ac) - 140 mA
- Power consumption: 3 W
- Auxiliary microswitch contacts rating: 5 A
- Protection class: IP 44 (in vertical position)
- Double insulation construction: CE
- Max. ambient temperature: 122°F (50°C)
- Operating time: opening and closing from 120 s to 180 s
- Length of supply cable: 31
1/2” (0.8 m)
Installation of the differential by-pass valve on series 663 and 668S1 manifolds
The differential by-pass on series 663 or 668S1 manifolds is mounted by following the procedure below:
1) Remove the drain cock (A) on the upper manifold.
2) Remove the automatic air vent (B) on the lower manifold.
3) Install the differential by-pass (code 668000) on the upper manifold and the lower manifold.
Code 668000
Off-center by-pass assembly with fixed setting. 1/2” Male threaded connections. Brass body and nuts. Copper pipe. PA check
valve, stainless steel spring, EPDM seals, asbestos-free fiber gaskets. Medium: water and glycol solutions. Maximum
percentage of glycol: 50%. Maximum working pressure: 150 psi (10 bar). Temperature range: 14-230°F (-10 to 110°C). Fixed
setting pressure: 3.6 psi (2500 mm w.g.).
SPECIFICATION SUMMARIES
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