HTP PHR199-55C - Manual (Page 50)

50
LP- 325 REV. 3.21.14
1. WIRING
WITH ZONE
VALVES
For proper
installation of
the appliance
with zone
valves, follow
the wiring
instructions
below.
Connect the
end switch to
the TT
connection on
the appliance.
The central
heating pump
must be
connected to
the appliance.
Ensure that
factory jumper
connecting
terminals 120
VOLT and 9
remains in
place.
2. WIRING
WITH ZONE
CIRCULATOR
PUMPS
For proper
installation of
the appliance
with zone
circulator
pumps, follow
the wiring
instructions
below.
Connect the
end switch to
the TT
connection on
the appliance.
Remove the
factory jumper
from Line
Voltage Pin to
Pin 9. Connect
the ZC/ZR to
the normally
open pins on
the appliance
relay. The appliance relay will close during a central heating demand, and activate the zone circulator pumps on the relay panel. If the
appliance is in DHW priority mode, the relay will open, shutting off the circulator pumps. If there is still a central heating demand after
the DHW priority mode is complete, the relay will close, re-activating the circulator pumps.
Figure 25 – Wiring with Zone Valves
Figure 26 - Wiring with Zone Circulator Pumps