Service manual

22
PARAMETER
DESCRIPTION
Boiler name DynaMax HS model
State Indicates current boiler operation sequence
Demand
Indicates origin of call for heat (CH, DHW,
Lead Lag)
Access Status User, Installer
Outdoor Outdoor Temperature [
o
F], if equipped
Error
Alert or Lockout. Section 5.4 provides
additional details.
Pressing provides additional troubleshooting information
on the diagnostic screen.
Figure 25: Diagnostic Screen
PARAMETER
DESCRIPTION
Boiler pump Pump A
Auxilary
Pump
Pump B. 3-way valve diverter operation
DHW Pump Pump C. Additional contact rated for 1/6hp.
Sequence of Operation
Pump A is energized for any call for heat
Pump B is energized on CH
Pump C is energized on DHW
Interlock: Flow switch, LWCO (if equipped), Blocked flue
switch (N/C), Low gas switch (4.5” w.c., N/O), High gas
switch (14” w.c., N/C)
Pressing provides additional temperature information.
Figure 26: Temperature screen