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Grant Vortex Indoor/Utility, System and Boiler House Oil Boilers
Fig. 12 - Water connections and thermostat phial positions
Heating return
Heating flow
Thermostat phials
Vortex 70/90
Heating return
Heating flow
Thermostat phials
Vortex 90/120, 120/155
Heating return
Heating flow
Thermostat phials
Vortex 155/200, 200/240
Vortex 50/70
Heating flow
Thermostat phials
Heating return
Vortex 90/120, 120/155, 155/200, 200/240 Boiler House
Heating return
Heating flow
Dual stat
(comes fitted)
Vortex 50/90 Boiler House
Dual stat phials
Heating return
Dual stat
Heating flow
(under blanking plate)