Installation Instructions
Pump Hook-Up Connections
Do not attempt to drive a pump starter directly from the controller. Pump start is provided by connecting one side of the coil of a suitable relay to the Master Valve/Pump Start output of the controller and the other side to the controller common.
For systems supplied with water from a pump, unused stations must be connected back to the last used station to eliminate the possibilty of the pump running against a closed head. Failure to do so could lead to pump damage.
The diagram shows an 6 station controller with 4 active stations (valves):
Unused stations must be linked back to the last used station.
Electrical Characteristics
Power Supply
MAINS SUPPLY
This unit can run off a 50Hz external transformer, (plugpack), with an output of 24VAC 50Hz @ 1 Amp.
Plug Pack Model
The correct wiring installation for the 24VAC plug pack is shown on page 19. The plug pack model is only suitable for indoor installation.
Electrical Outputs
ELECTRICAL POWER SUPPLY
lInput: 24Volts AC 50Hz.
lElectrical Outputs: Maximum of 1.0 AMP
To Solenoid Valves: 24 VAC 50/60 Hz 0.5 AMPs max.
To the Master Valve/Pump Start: 24VAC 0.25 AMPs maximum.
Note:
Transformer and fuse capacity must be compatible with output requirements.
lOverload protection: Standard 20mm 1 Amp fuse.
lPower failure: 9 Volt block type battery maintains clock and programs for up to 4 weeks.
lThe output circuits should be installed and protected in accordance with wiring rules.
PAGE 20 | PAGE 21 |
