Manual
Page 14 of 21
connection of the two sensors. The GPT–3 comes factory set for self-limiting cable.
Systems using constant-wattage heaters require only one sensor as is shown in Figure 4.
Upon completion of the installation, dispose of the unused sensor.
Alarm Relay Contacts
Figure 5 shows the alarm relay connections. The relay contacts are rated for one amp in
NEC Class 2 service. Contact Customer Service if higher voltage operation is required.
Setup
Factory Settings
The GPT–3 comes set for the most common systems. This includes:
• Self-limiting cable
• GFEP set at 30 mA
• GFEP set for manual reset
The factory DIP switch settings follow:
FACTORY SETTINGS
Pole 1 2 3 4 5 6
Setting Off Off Off Off --- ---
Figure 6. DIP switch detail
O
N
O
F
F
1
2 3 4 5 6
O
N
O
F
F
1
2 3 4 5 6