TFC Group A3MID - Manual

INSTALLATION INSTRUCTIONS
2 PORT ZONE VALVE VAL222MV VAL228MV
VAL222MV and VAL228MV are 2 port spring return zone valves with 22mm and 28mm compression
fittings and an auxiliary switch. This is for general purpose flow control applications or central heating
systems. When correctly wired with an appropriate room thermostat, cylinder thermostat and
programmer the valve will control the water flow from the boiler to hot water and from boiler to central
heating.
INSTALLATION
Before fitting the valve, read through the plumbing
and wiring instructions. When replacing the valve
actuator only, set the Auto/Manual lever to the
“Manual Open” position before removal. On the
replacement actuator set the Auto/Manual lever to
“Manual Open” position before fitting.
WIRING
All wiring should be carried out to IEE Regulations
Brown
- live
Orange - end switch out
Grey - end switch in
Blue - neutral
Green & Yellow - earth
PLUMBING
When connecting to pipe work do not use the
actuator for leverage. Valves should be held by
wrench flats on body. Place the AUTO/MAN lever in
the MAN position when filling, venting or draining
the system
TAKE CARE NOT TO OVERTIGHTEN
SPECIFICATIONS
• Supply voltage 240V. AC 50Hz
• Power consumption: 6W
• Operating temperature range: +5 to +88
0 C
• Cable length one metre
• Max. differential pressure for 22mm = 1Bar
• Max. static pressure 10.0 Bar
• Max. fluid temperature 100 0 C
• Max. ambient temperature 52 0 C
WARNING
All controls must be earthed. All valves should have a
means of disconnection from electrical mains supply
which incorporates a contact separation of at least 3mm
in all Poles.
All wiring must be carried out by a competent
electrician.
TFC GROUP LTD
Tower House, Vale Rise, Tonbridge, Kent, TN9 1TB, Telephone: 01732 359888 Fax: 01732 354445
Typical circuit using two zone Valves (VAL222MV)
Programmer, Room Thermostat and Cylinder Thermostat
45 0 45 0
88 60
93
55 55
A B
PROGRAMMER HEATNG H, WATER
L N ON OFF ON OFF
L
N
240V AC 50 Hz
Supply fused
at 3A
CALL = THERMOSTAT DEMAND
SAT = THERMOSTAT NO DEMAND
COM = COMMON
COM
COM
CALL
CALL
SAT
SAT
BROWN
GREY
BLUE
ORANGE
GRN/YLO
BROWN
GREY
BLUE
ORANGE
GRN/YLO
PERMANENT LIVE
NEUTRAL
P B
NEUTRAL (P=PUMP) NEUTRAL (B=BOILER)
Valve Valve
ALL DIMENSIONS IN MM
Cylinder
Thermostat