manual lever, the lever should normally be in ‘AUTO’ position, but can be moved to ‘MAN OPEN’ position for system draindown and filling purposes only. Before fitting the valve, read through the plumbing and wiring instructions. This product MUST be installed by a competent person. The installation MUST. · It may be easier to have the valve set in the manually open position using the manual lever. (See Honeywell Motorised Valve Manual Lever, below.) Remove the metal cover of the powerhead by removing the cover securing screw, then lift the cover clear. Remove the motor securing screw which is located at the side of the Synchron motor. The Honeywell motor energizes and the zone valve rotates to the mechanical stop (in the open position). The motor remains energized until the thermostat (call for heat) opens and de-energizes the Honeywell motor.
Motorised Zone Valve. The VA Mid-position Diverter Valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of a conventional, fully pumped central heating installation. ZONE VALVE 24/60 3/4" SWEAT CV 18" LW AND END SW. Dimensions: H=, W=, D= Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure; valve returns to automatic position when power is restored. All models may be installed without disassembling the val. Zone Valves Zone valve systems use a thermostat and zone valve for each zone, and one central circulator. For these systems, the preferred valve is a two-position (open or closed) straight-through valve, such as the Honeywell V These valves are standard for residential applications.
Manual Lever. The V normally closed valves can be opened manually by moving the manual lever slowly and firmly to the MAN. OPEN position and pushing up to the stop. The stop permits the valve to be locked in the open position. The valve returns to automatic position when it is energized. manual lever, the lever should normally be in ‘AUTO’ position, but can be moved to ‘MAN OPEN’ position for system draindown and filling purposes only. Before fitting the valve, read through the plumbing and wiring instructions. This product MUST be installed by a competent person. The installation MUST. Zone valve with its manual lever left in the manual "on" position - may indicate that the valve does not work - this zone is forced into "always on" status. In our photo above, that notch at the left end of the zone valve control lever will "lock" the valve in the open position.
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