Page 1
ST699 ELECTRONIC DUAL ZONE TIMER PRODUCT DATA The ST699 electronic dual zone timer is used to control gravity, primary or fully pumped central heating systems requiring a single 24 hour programme with two ON/OFF periods per day. ST699 incorporates a simple and...
Remove the subbase from the timer by depressing the securing clip A and pulling the two halves apart. See fig. 1 The ST699 can either be mounted onto the wall surface or a flush mounted UA1 (with 60.3 mm pitch mounting holes) using the screws supplied.
Page 3
See fig. 2 The ST699 is designed for fixed wiring only and must be wired in accordance with the latest IEE wiring regulations.
ST699 ELECTRONIC DUAL ZONE TIMER SUNDIAL PLAN WIRING DIAGRAMS Y-Plan S-Plan V4043H V4043H CYLINDER 2 PORT ZONE VALVE 2 PORT ZONE VALVE ROOM STAT. MID-POSITION VALVE CYLINDER ROOM STAT. STAT. HEATING WATER STAT. 3 A max PUMP PUMP BOILER BOILER...
Page 5
Check out our full range of Heating Products Central Heating Controls Honeywell Heating Controls Danfoss Heating Controls Radiator Valves Fernox Sentinel Magnaclean Warmup underfloor heating Water Heaters Hand Dryers...