Sanyo SGP-E120J2GU2, User Manual

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Water heat exchange unit
H - 12
lOper
ate button
lStop button lCoolin
g/h
eatin
g chan
g
e switch
lOper
ate display LED
lAbn
orm
ality display LED
lOil warnin
g display LED
Con
tact
poin
t
si
gn
al
Separ
ately sold r
em
ote con
tr
ol or
cen
tr
al m
onitorin
g boar
d
W
ater h
eat e
xchan
g
er unit
Hot an
d cold water
in
tak
e temper
atur
e
Hot an
d cold water
outflow temper
atur
e
W
ater h
eat e
xchan
ger b
refri
ge
ra
nt
inlet
temper
atur
e
W
ater h
eat e
xchan
ger b
refri
ge
ra
nt
outlet
temper
atur
e
W
ater h
eat e
xchan
ger b
freeze pr
even
tion
th
erm
ostat
W
ater h
eat e
xchan
ger a
refri
ge
ra
nt
inlet
temper
atur
e
W
ater h
eat e
xchan
ger a
refri
ge
ra
nt
outlet
temper
atur
e
W
ater h
eat e
xchan
ger a
freeze pr
even
tion
th
erm
ostat
K
ey SW 1 N
o
.
Rotary SW 5 N
o
.
4P dip SW 1 N
o
.
5P dip SW 1 N
o
.
8P dip SW 2 N
o.
Sli
d
e SW 4 N
o
.
W
ater h
eat e
xchan
g
er
b-1 electri
c valve
W
ater h
eat e
xchan
g
er
b-1 electri
c valve
W
ater h
eat e
xchan
g
er
a-2 electri
c valve
W
ater h
eat e
xchan
g
er
a-1 electri
c valve
Contr oller board
Contr oller board
Seri
al comm
uni
cati
on
20 N
o. LED output
Oil float switch H level Oil float switch L level
Bypass valve Expan
si
on valve
Liqui
d valve
Four-way valve
Fuel gas valve 1 Fuel gas valve 2 Cr
ank case h
eater
N
eutr
alizer h
eater
Coolin
g water pump
Inverter
Fan m
otor 1
Fan m
otor 2
En
gin
e oil supply pump
Solen
oi
d valve 1 f
or oil supply
Solen
oi
d valve 2 f
or oil supply
Fuel adjustm
en
t valve
Cr
ank an
gle sen
sor
Cam an
gle sen
sor
En
gin
e oil pr
essur
e SW
Coolin
g water
Starter m
otor
Igniti
on 1
Igniti
on 2
Igniti
on 3
Igniti
on 4
Step m
otor
En
gin
e
PC
LED output 7 N
o
.
7 segm
en
t LED
output 6 N
o
.
K
ey SW 4 N
o
.
Sli
d
e SW 2 N
o
.
<sen
sor input>
Compr
essor inlet temper
atur
e
Compr
essor outlet temper
atur
e
Coil inlet tem
per
atur
e
Coil outlet temper
atur
e
Extern
al air
temper
atur
e
Exhaust gas temper
atur
e
Compr
essor
inlet pr
essur
e
Compr
essor
outlet pr
essur
e
Coolin
g water float SW
Refri
g
er
an
t
pr
essur
e SW
In
terlock
H
ot an
d cold
water pump
oper
ate comm
an
d
An
cillary equipm
en
t con
tr
ol boar
d
●
H
ot an
d cold water pump power cir
cuit
●
Flow switch an
d in
terlock
5. Control
(1) System block diagram