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[ VII Control ]
VII Control
[1] Functions and Factory Settings of the Dipswitches
1. Factory Switch Settings (Dip switch settings table)
SW
Function
1
2
3
4
5
Model setting
SW1
6
7
8
9
1
0
M
o
d
e
s l
e
t t
n i
g
1
F
e r
e
z
e
u -
p
p
o r
e t
t c
o i
n
2
M
o
d
e
s l
e
t t
n i
g
3
4
M
o
d
e
s l
e
t t
n i
g
Recovery conditions after
5
forced stoppage
Power supply option to the
SW2
6
communication circuit
Remote water-temperature
7
setting
Water-temperature control
8
option
9 Individual/Multiple system
10 Display mode switch 7
1 Remote reset
Auto restart after power
2
failure
3 Water-temperature control
SW3
Pump-thermistor interlock
4
setting
5 Display mode switch 1
6
D
s i
p
a l
y
m
o
d
e
s
w
c t i
h
7
D
s i
p
a l
y
m
o
d
e
s
w
c t i
h
8
D
s i
p
a l
y
m
o
d
e
s
w
c t i
h
9
D
s i
p
a l
y
m
o
d
e
s
w
c t i
h
1
0
D
s i
p
a l
y
m
o
d
e
s
w
c t i
h
"-" in the table indicates that the function in the corresponding row will be disabled regardless of the actual switch setting.
The factory setting for these items is OFF.
Refer to page 26 for how to reset errors.
HWE1312A
Usage
s
e
t t
n i
g
Selects what the operation restoration
condition will be based on after the unit
was forced to stop based on the external
thermistor reading (water outlet
temperature).
Switches between supplying or not
supplying power to the communication
circuit.
Allows or disallows the water temperature
to be set using analog signals from a
remote location.
Selects either the external water
temperature sensor or the built-in sensor
to be used to control water temperature.
Selects between individual and Multiple
system
This switch is used in combination with dip
switches SW3-5 through 3-10 and push
switches SWP 1, 2, and 3 to configure or
view the settings when performing a test
run or changing the system configuration.
Enables or disables the error to be reset
from a remote location.
Enables or disables the automatic
restoration of operation after power failure
(in the same mode as the unit was in
before a power failure).
Switches between inlet-water-
temperature-based control and outlet-
water-temperature-based control.
Interlocks or does not interlock the
operation of the pump with the external
thermistor.
(Effective only when SW2-8 is set to ON.)
2
These switches are used in combination
with dip switches SW2-5 and push
3
switches SWP 1, 2, and 3 to configure or
4
view the settings when performing a test
run or changing the system configuration.
5
6
Factory setting
MAIN
SUB
OFF setting
circuit
circuit
Depends
-
L
e
a
v
e
h t
e
s
e
t t
n i
g
on the unit
O
F
F
-
L
e
a
v
e
h t
e
s
e
t t
n i
g
Starts the pump when both
the outside and water
O
F
F
-
temperatures drop to
prevent water pipe freeze
up.
O
F
F
-
L
e
a
v
e
h t
e
s
e
t t
n i
g
O
F
F
O
F
F
L
e
a
v
e
h t
e
s
e
t t
n i
g
OFF
-
External thermistor
Does not supply power to
-
ON
the communication circuit.
Disallows the water
OFF
-
temperature to be set using
external analog signals.
OFF
-
Built-in sensor on the unit
OFF
-
Individual system
OFF
OFF Changes the 7-segment LED display mode.
Disables the error to be
ON
-
reset from a remote
location.
An alarm will be issued
when power is restored
after a power outage.
ON
-
The alarm will be reset
when the power is turned off
and then turned back on.
Outlet-water-temperature-
OFF
-
based control
The pump turns on when
the operation switch is
OFF
-
turned on regardless of the
Thermo-ON/Thermo-OFF
status.
OFF
OFF Changes the 7-segment LED display mode.
O
F
F
O
F
F
C
h
a
n
g
e
s
h t
e
7
s -
O
F
F
O
F
F
C
h
a
n
g
e
s
h t
e
7
s -
O
F
F
O
F
F
C
h
a
n
g
e
s
h t
e
7
s -
O
F
F
O
F
F
C
h
a
n
g
e
s
h t
e
7
s -
O
F
F
O
F
F
C
h
a
n
g
e
s
h t
e
7
s -
- 69 -
ON setting
a
s
t i
. s i
a
s
t i
. s i
Same as when set to OFF
a
s
t i
. s i
a
s
t i
. s i
Built-in thermistor
Supplies power to the
communication circuit.
Allows the water
temperature to be set using
external analog signals.
External water temperature
sensor
Multiple system
Enables the error to be
reset from a remote
location.
Automatically restores
operation after power
failure.
Inlet-water-temperature-
based control
Interlocks the operation of
the pump with the Thermo-
ON/Thermo-OFF status.
e
g
m
e
t n
L
E
D
d
s i
p
a l
y
m
o
d
. e
e
g
m
e
t n
L
E
D
d
s i
p
a l
y
m
o
d
. e
e
g
m
e
t n
L
E
D
d
s i
p
a l
y
m
o
d
. e
e
g
m
e
t n
L
E
D
d
s i
p
a l
y
m
o
d
. e
e
g
m
e
t n
L
E
D
d
s i
p
a l
y
m
o
d
. e
Setting
timing
t A
a
e r
s
t e
t A
a
e r
s
t e
At a reset
t A
a
e r
s
t e
t A
a
e r
s
t e
At a reset
Any time
At a reset
At a reset
At a reset
Any time
At a reset
At a reset
At a reset
At a reset
Any time
A
n
y
i t
m
e
A
n
y
i t
m
e
A
n
y
i t
m
e
A
n
y
i t
m
e
A
n
y
i t
m
e
GB
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