Grant Aerona3 HPID10R32, Руководство по установке

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Page 12 Section 4: Electrical
Figure 4-2: Connection diagram for External Volumiser
4.2.2 SUPPLEMENTARY HEATER CONTROL
WIRING
The operation of the backup immersion heater is controlled by the
Grant Aerona³ heat pump.
The 230V output from the ‘Electric heater’ terminal (terminals 46
and N) on the Aerona³ Terminal PCB is connected to the external
volumiser electrical terminals as follows:
• Terminal 46 on heat pump terminal PCB to Terminal L (A2 on
the backup heater relay)
• Terminal N on heat pump Terminal PCB to Terminal N (A1 on
the backup heater relay)
Refer to Figure 4-2 for external volumiser connection diagram
4.3 IMMERSION HEATER
The Grant External Volumiser is supplied factory-fitted with a pre-
wired 3kW Cotherm Type TSR immersion heater.
! WARNING !
The immersion heater must NOT be used unless it is fully
immersed in water. Always ensure that the volumiser is full
of water BEFORE switching on the electrical supply.
The immersion heater control thermostat is pre-set on position 4
at a temperature of approximately 65°C. This can be adjusted as
required. Refer to Figure 4-3.
= Earth (Green/Yellow)
= Live (Brown)
= Neutral (Blue)
Temperature
control dial
Reset
Figure 4-3: Immersion heater wiring connections
The wiring connections are also shown in Figure 4-3. Follow
the wiring instructions connecting the live, neutral and earth as
indicated.