Reznor, Guardian 1 Phase Electric Heat with Signal Pro, Installation Manual, EN 2021-11, D301375 Iss 0 Page No 17
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Installer wiring - Electric heated models, single phase only
Figure 21 Wiring diagram electric heated
Terminal
Description
Cable
PE
Mains earth
10mm²
N
Neutral
L
Phase 1
Table 7 Cable specification electric heated
Protection
There are two high speed fuses on the base
unit to protect the switching thyristors for the
heater. An external circuit breaker with the
appropriate rating should be installed for the
protection of the installation
Terminal
Description
Cable
3 & 4
Optional external switch
1.5mm²
5 & 6
Optional door contact
1 & 2
Optional external sensor
PCB Fuses
Rating (A)
F1
T1H (slow blow)
Table 7.1 Cable specification electric
heated continued
External Temp
Sensor
900733 Guardian Signal Pro Series 1-Phase Electric - Installer Connections
230v 50Hz
MAINS SUPPLY
RJ45 Cable
Programmer
Keypad
External Switch
(BMS)
Door Switch
J1
Factory Connections
Installer Wiring
PE
N
L
J2
6
5
4
3
2
1
Summary of Contents for GUARDIAN GB 1000
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