Setting Conflict Message
(45) (55) External modulation conflict
Switched T88 external modulation is not set with permanent external modulation.
Check options 45 and 55.
(45/55) (16) External modulation conflict
External modulation cannot be used on any MMs in sequencing.
Check options 16, 45 and 55
(45) (P72) External modulation and external setpoint both optioned
External modulation and external setpoint cannot be used simultaneously.
Check option 45 and parameter 72.
(81, 82, 83, 84) OTC Configuration invalid
Setpoints at minimum and maximum outside temperatures cannot be set the same.
Minimum and maximum outside temperatures cannot be set the same.
Check options 81, 82, 83 and 84
(111) (122) Flame scanner changeover cannot be optioned with no pilot.
If no pilot is set, then flame scanner changeover cannot be used.
Check option/parameters 111 and 122.
(111) (130) Single valve pilot cannot be optioned with no pilot.
If no pilot is set, then gas valve configuration cannot be set for single valve pilot.
Check option/parameters 111 and 130.
(112, 135) (158) Purge pressure proving timeout shorter than pre-purge time.
Purge pressure proving timeout must be longer than the pre-purge time
Check option/parameters 112, 135 and 158.
(118, 135) (158) Purge pressure proving timeout shorter than post-purge time.
Purge pressure proving timeout must be longer than the post-purge time
Check option/parameters 118, 135 and 158.
(118) (135) NFPA Post Purge must be at least 15 seconds.
If NFPA Post Purge is enabled, then this time must be set to a minimum of 15 seconds.
Check option/parameters 118 and 135
(125) (150) Valve proving cannot be optioned when fuel type is oil (fuel 1)
Valve proving can only be used for gas
Check option/parameters 125 and 150
(126) (151) Valve proving cannot be optioned when fuel type is oil (fuel 2)
Valve proving can only be used for gas
Check option/parameters 126 and 151
(127) (152) Valve proving cannot be optioned when fuel type is oil (fuel 3)
Valve proving can only be used for gas
Check option/parameters 127 and 152
(128) (153) Valve proving cannot be optioned when fuel type is oil (fuel 4)
Valve proving can only be used for gas
Check option/parameters 128 and 153
(125, 126, 127, 128) (129) (135) Post VPS cannot be optioned with NFPA Post Purge.
If NFPA post purge is enabled for gas, VPS can only be set for operating before burner start-up.
Check option/parameters 125, 126, 127, 128, 129 and 135.
(P85) (16) Modulation exerciser cannot be used with sequencing.
Modulation exerciser should be used for test purposes and cannot be used with sequencing.
Check option 16 and parameter 85.
22.05.2017 Mk8 MM End User Guide Page 58
4 Errors and Lockouts
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