Protege System Controller Reference Manual

Enabled Control PGM
Enabled Control PGM is set when the RTHP is to run and will operate only when the enabled PGM is on. If no
enabled PGM is set the RTHP will run continuously. This allows the RTHP to operate only during the times that
the space is occupied. The signal can also be a memory register or a Boolean (bit) value from the selected
memory register.
FN001 Enabled
pgm: --000:00
To modify the occupy PGM, use the settings as explained in section Entering PGM and PGM Groups (see page
345).
Fault PGM
The fault control PGM is set when a fault condition has occurred and the RTHP is to shutdown. This allows the
RTHP to shutdown in the shortest possible time without causing any damage to the system. In the case of a fire
shutdown the system must have a fire PGM programmed.
FN001 Fault
pgm: --000:00
To modify the fault PGM, use the settings as explained in section Entering PGM and PGM Groups (see page
345). To select a data register press the stay key, the following screen will be shown and a memory register
location can be selected. To view the memory register locations refer to appendix memory registers.
Fire PGM
The fire control PGM is monitored NOT controlled by the function and when the fire PGM has been activated,
typically by an external fire alarm input, the RTHP will gracefully shut down the air conditioning system and halt
operation until the fire alarm has been cleared. This PGM could be the PGM used to deactivate smoke dampers
and other related equipment in the HVAC control system.
FN001 Fire
pgm: --000:00
To modify the fire PGM, use the settings as explained in section Entering PGM and PGM Groups (see page
345). Do not set a PGM group for the fire or other monitored PGM's as this will have no action in the control
system and will be the same as not setting a PGM value.
Fan Control PGM
The fan PGM is activated when the RTHP starts to operate and is started 30 seconds prior to any heating,
cooling or dehumidification is required allowing it to ramp up to the desired speed.
FN001 Fan
pgm: --000:00
To modify the fan PGM, use the settings as explained in section Entering PGM and PGM Groups (see page
345).
PRT-CTRL-SE Protege System Controller Reference Manual | PRT-CTRL-SE 225