
– 19 –
Split Inverter Air-to-Water Heat Pump
Typical System Diagram
Figure 3.11
Installation
EXPA
NS
IO
N TANK
CI
RCULAT
OR
WITH
BA
LL VALV
E
DR
AIN VALV
E
PR
ESSU
RE
GAG
E
ST
RAINER
AU
TOMATI
C
AIR VENT
PR
ESSU
RE
RE
LI
EF VALV
E
BA
CKFLOW-P
REVENTION
DEVICE
PR
ESSURE
RE
DUCING
VALV
E
VALV
E
IN
TEGRAL
FL
OW-CHECK
CI
RCULATOR
BUFF
ER
TA
NK
AU
TOFILL
LOCATI
ON
IS SUGGESTE
D,
BU
T THE FI
NA
L
LO
CA
TI
ON
TO BE
MA
DE
BY FIEL
D
CONTRA
CT
OR
DR
AI
N
VA
LV
E
SH
OU
LD
BE
LO
CA
TE
D
AT
LO
WEST
PO
INT IN
PI
PI
NG
SYSTEM
RETURN FROM TERM
INAL UNIT(S)
SUPPLY
TO TERM
INAL UNIT(S)
SPACEP
AK
SP
AC
EPAK
SI
SO
-0
60
OU
TD
OO
R
MO
DU
LE
SI
SI
-0
60
INDOOR
MO
DU
LE
RE
FRIGERAN
T
LI
NE
SE
T
SU
PPL
IE
D,
MAX. LE
NG
TH 35
'
BO
ILER
DH
W
TA
NK
(O
PT
IO
NAL)
POTABLE
WA
TE
R IN
DO
ME
ST
IC
HOT
WA
TE
R OU
T
DHW
LO
OP
(O
PT
IO
NAL)
3-
WAY VALV
E
HEAT
EXCH
AN
GE
R
SPL-
WG
13
63
-0
1
SELECT
RELIEF VALVE TO PR
OT
ECT THE LO
WE
ST
RATED COMPONENT IN
THE
SYSTE
M