Users Manual Part 2
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INSTALLATION AND OPERATING INSTRUCTIONS DRAFT FOR OEM USE ONLY
© 2019 Mertik Maxitrol GmbH & Co. KG, All Rights Reserved.
Connection of a 2
nd
thermocouple
▪ A 2
nd
thermocouple is placed in the main burner to check that the main gas is ignited within a
certain time after opening.
▪ The voltage is measured for 22 sec (PT) or 29 sec (PT2) after the motor has turned to high
re (during ignition and after increasing ame height). If the voltage is lower than 1.8 mV, the
electronics shut off the gas ow. A new ignition is blocked for 2 minutes after ignition failure and
1 minute after failure while opening main gas.
▪ Receivers for 2
nd
thermocouple are identied with a yellow sticker on the back. They will not op-
erate without the thermocouple connected. Other versions will not operate if the thermocouple
is connected.
▪ To use Wall Switch, Switch Panel or External Operation Cable, the additional G60-ZCT-
CR / 2000 cable is needed.
COMBINATION WITH WALL SWITCH
1. Remove G60-ZCTC / 2000 cable and replace with Wall Switch / Touchpad G6R-CWSN… cable.
2. Insert the crimp terminal of the G60-ZCTCR / 2000 cable into the open connector hole of the
plug (see image 1). Listen for a “click”.
3. Insert the insulated receptacle into the insulated 2
nd
thermocouple terminal.
4. Insert the plug connector into the receiver (see image 2).
ON-OFF
UP
DOWN
Figure 30
2
nd
THERMOCOUPLE
2
nd
thermocouple
G60-ZPT300
2
nd
Thermocouple cable
G60-ZCTC / 2000
2
nd
Thermocouple cable
G60-ZCTCR / 2000
Receiver
B6R-R8PT(2),
B6R-RAPT,
B6R-RAPT2
Cable connection for
combination with Wall Switch
Standard connection
Ground cable
G60-ZCGTC2000
Wall Switch (optional)
G6R-ZWSE(N)…
Image 1: Lock crimp terminal (G60-ZCTCR / 2000)
inside connector hole of the plug.
Image 2: Insert plug connector into the receiver.
Switch Panel (optional)
G6R-SPKS / 1000
External Operation (optional)
G60-ZCE
/ 1000
Insulated cable
Non-insulated
cable
Wall Switch / Touchpad Cable
G6R-CWSN…
Combination Control
GV60…
Main Burner
Pilot Burner
(not shown here)
To install the 2
nd
thermocouple make sure that the insulated male spade is connected to the
insulated female spade. The non-insulated male spade must be connected to the female spade
ground cable. The ground cable should be connected to the ground at the valve or the heater.
The 2nd thermocouple is not a safety device.
NOTICE
NOTICE