30
VC
Series
Manual
Recircula
Ɵ
on
Mode
Sequence
of
Opera
Ɵ
on
DIP
switches
(SW2
Ͳ
white
switches,
#4,
#8)
should
be
set
correctly
for
recircula
Ɵ
on
and
mode.
The
Rinnai
water
heater
should
be
turned
on.
Pump
recircula
Ɵ
on
begins
when
the
water
heater
is
turned
on.
The
Rinnai
inlet
and
outlet
thermistors
measure
the
water
temperature.
The
water
heater
produces
hot
water
at
the
temperature
se
ƫ
ng.
If
the
inlet
thermistor
detects
abnormal
temperature
then
diagnos
Ɵ
c
code
51
is
generated
and
the
pump
will
turn
o
ī
.
When
the
return
water
temperature
reaches
approximately
15°F
(8.3°C)
below
the
temperature
se
ƫ
ng,
the
water
heater
and
pump
will
turn
o
ī
.
The
cycle
will
restart
at
the
approximate
Ɵ
me
interval
in
the
table
based
on
the
temperature
thermistor
readings.
Economy
Mode
The
Economy
mode
operates
as
follows:
x
Less
energy
consumed
due
to
fewer
pump
cycles
x
Assumes
plumbing
is
insulated
(minimal
pipe
heat
loss)
x
Pump
cycles
on
every
31
to
79
minutes
(see
table).
Comfort
Mode
The
Comfort
mode
operates
as
follows:
x
Higher
energy
consump
Ɵ
on
due
to
more
pump
cycles
x
Assumes
plumbing
is
not
insulated
resul
Ɵ
ng
in
higher
pipe
heat
loss
x
Pump
cycles
on
every
15
to
39
minutes
(see
table).
Rinnai
Temperature
Se
ƫ
ng
°F
Typical
Pump
ON
Intervals*
(minutes)
Economy
Mode
Comfort
Mode
135
31
15
130
31
15
125
31
15
120
31
15
115
35
18
110
42
21
108
45
22
106
49
24
104
54
27
102
60
30
100
68
34
98
79
39
140
31
15
*
The
pump
will
cycle
on
at
these
calculated
intervals
which
are
based
on
the
temperature
se
ƫ
ng,
insula
Ɵ
on,
and
es
Ɵ
mated
heat
loss
in
the
system.
The
values
for
your
installa
Ɵ
on
may
vary.
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