Rinnai 28
DD FP Solar Pre Heat System OIM
SOLAR PREHEAT WITH DEMAND DUO
HOT
W
ATER OUTLETS
TEMPER AS
REQUIRED
CIRCULA
TING RETURN
PUMP
OPTIONAL
(NOT
INCLUDED) -
GPO REQUIRED
PTR V
AL
VE(S)
SUIT
ABLE FOR
DD SYSTEM
DEMAND DUO HOT
W
ATER SYSTEM DD1 SHOWN,
ANY
DD SYSTEM CAN
BE USED
DDSC
SOLAR CONTROLLER
DDS CYLINDER
DDS CYLINDER
DDS CYLINDER
PTR V
AL
VE
PTR V
AL
VE
PTR V
AL
VE
NOT INCLUDED
COLD
OPTIONAL
SECOND PUMP
• COLD EXP
ANSION V
AL
VE
• PRESSURE LIMITING V
AL
VE
• NON RETURN V
AL
VE
• STRAINER • ISOLA
TION V
AL
VE
GAS BOOSTING
