User manual

25
GAS-FIRED HEATER Installation Manual
PART 6. MUNCHKIN CONTENDER PIPING WITH OPTIONAL VISION I SYSTEM (DHW PRIORI TY WITH OUTDOOR RESET)
A. VISION I SYSTEM PIPING
It is important that the system piping is done
correctly when using the Vision 1 System.
Follow the piping diagrams 2A through 3G when
piping your Munchkin Contender with Vision I.
All general piping practices should still be main-
tained.
B. ZONING WITH ZONE VALVES USING VISION I
1. Connect the heater to the system as shown
in piping details 2A through 2C.
2. Connect the DHW circulator (P2) directly to
the heater as shown as shown in the piping
details. The heater circulator (P1) will shut
down when there is a DHW demand.
C. ZONING WITH CIRCULATORS USING VISION I
1. Connect the heater to the system as shown
in piping details 3A through 3G.
2. Connect the DHW circulator (P2) directly to
the heater as shown in the piping details. The
heater circulator (P1) will shut down when
there is a DHW demand.