62
PHTM II
Combi Installation, Operating & Service Instructions
110331-07 - 8/23
16
Operation
(continued)
Table 16-15: Menu
PU
PU
, Pump Menu (visible only after password entered)
Default
Range/
Choices
Parameter and Description
2
1, 2, 3
P01
P01
System Pump Output Select:
Activates System Pump output according to selected function.
(1)
System Pump Any
Demand:
Pump Runs during any call for heat.
(2)
System Pump Central
Heat:
Pump Runs during CH1 and CH2 demand. Pump does not
start for a DHW demand and will be forced off if there is a DHW
demand and DHW Priority is active.
(3)
Zone 1 Pump, CH Zone 1
Only:
Pump runs during CH1 demand. Pump does not start for CH2
or DHW demand. Pump will be forced off when DHW priority is
active. This option allows System Pump output to be used as a
zone pump.
1
1, 2, 3
P02
P02
Boiler Pump Output Select:
Activates Boiler Pump output according to selected function.
(1)
Boiler Pump Any Demand: Pump runs during any call for heat. Pump also runs when it is
Sequencer lead pump.
(2)
Boiler Pump Header
Sensor Demand:
Pump runs when boiler is firing and when there is a DHW heat
demand. Selected when Header Sensor is selected as CH1 and
CH2 modulation sensor, and boiler is a stand-alone boiler.
(3)
Boiler Pump CH Only, Off
for DHW:
Pump runs during CH1, CH2 and CH frost protection demand
and will be forced off if there is a DHW demand and DHW
priority is active. This function is selected when there is a direct
piped IHW installed with a dedicated DHW pump.
4
1, 2, 3, 4
P03
P03
Auxiliary Pump Output Select
Activates Auxiliary Pump output according to selected function.
(1)
Recirculation Pump:
Pump runs when Recirc (Comfort) Mode selected, recirculation
sensor installed and Aux T'stat enabled (jumper installed,
optional Recirculation Timer On or after optional Point of use
button pressed.) Note: Recirculation pump remains running 15
minutes after Aux T'stat input removed.
(2)
DHW Pump Primary Loop
Piped IHW:
Pump Runs during DHW demand. DHW Priority enable/disable
does not affect pump operation. [Not for Combi boilers]
(3)
DHW Pump Boiler Piped
IHW:
Pump runs during DHW demand. Pump is forced off during CH
demand when 1) DHW priority is disabled or 2) DHW priority
is enabled and DHW demand has remained on for longer than
Priority Time. [Not for Combi boilers]
(4)
Zone 2 Pump CH Zone 2
Only:
Pump runs during CH2 call for heat. Pump does not start for
CH1 or DHW demand. The pump will be forced off when DHW
priority is active. This allows the Aux Pump output to be used as
a zone pump.
