Hunter Herald 14 CE V.II Installation And Operating Instructions Manual page 9

Four Tapping System
Circulating Pump
Two Tapping System
Time Switch
Room Thermostat
Low Limit Thermostat (45°C)
Time Switch
Room Thermostat
High Limit
Thermostat
90° C
Low Limit Thermostat (45° C)
High Limit
Thermostat
90°C
Drain Cock
Injector Tee
Drain Cock
Circulating Pump
Wiring Diagram for general guidance only
All electrical work must be carried out by a competent
electrician in accordance with the rules in force and the
instructions provided by the circulating pump and
heating controls manufacturer