T-M50-ASME-N Installation Manual

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The dark squares indicate the direction
the dipswitches should be set to.
TEMPERATURE SETTINGS
• The temperature has been preset at the factory to 120 ºF (50 ºC).
• There are 8 preset temperatures that you can select from by changing the dipswitch settings
on the computer board. If you want to change the set temperature with dipswitches, please
refer to the diagram below. These temperatures are available: 100 ºF, 115 ºF, 120 ºF, 135 ºF,
145 ºF, 155 ºF, 165 ºF, and 185 ºF.
• If you need more detailed temperature settings other than the 8 preset settings, please
purchase the optional temperature remote controller (part No. 9007603005 (TM-RE30)). With
this optional remote controller you can set the temperature in increments of 5 ºF from 100 ºF
to 185 ºF. Refer to p. 30. Please read the instructions carefully prior to installing the remote
controller, as failure to do so could damage the temperature controller and/or the water
heater, which will void the warranty.
• Turn off the power supply to the heater before changing the dipswitch
settings.
• Only change the switches with the dark squares. The dark squares indicate
which direction the dipswitch should be set to.
• DO NOT set to 185ºF if you use your water heater in a recirculation system.
This will cause damage to the heater and void the warranty.
To change dipswitch settings
for temperatures, locate the
lower bank of dipswitches to
the right of 7-Seg LED.
DO NOT adjust the upper bank
of dipswitches.
7-Seg LED
Lower bank of
dipswitches
Upper bank of
dipswitches
Temperature Settings
<Lower bank of dipswitches>
DEFAULT
100°F
(38 ºC)
115°F
(46 ºC)
MODE
O
N
1 2 3 4
5 6 7 8
MODE
O
N
1 2 3 4
5 6 7 8
O
N
1 2 3 4
5 6 7 8
120°F
(50 ºC)
MODE
O
N
1 2 3 4
5 6 7 8
135°F
(57 ºC)
TMP2
MODE
TMP2
TMP1
DIRE
OUT
TMP3
P-ALARM
MST
O
N
1 2 3 4
5 6 7 8
TMP1
DIRE
OUT
TMP3
P-ALARM
MST
145°F
(63 ºC)
TMP2
MODE
TMP2
O
N
155°F
(68 ºC)
MODE
TMP1
DIRE
OUT
TMP1
DIRE
1 2 3 4
5 6 7 8
MODE
TMP2
TMP3
OUT
TMP3
P-ALARM
MST
TMP2
O
N
165°F
(74 ºC)
P-ALARM
MST
TMP2
OUT
MODE
TMP3
TMP1
DIRE
OUT
TMP3
P-ALARM
MST
1 2 3 4
5 6 7 8
TMP1
DIRE
TMP2
TMP1
DIRE
OUT
TMP3
P-ALARM
MST
O
N
1 2 3 4
5 6 7 8
185°F
(85 ºC)
TMP1
DIRE
OUT
TMP3
P-ALARM
MST
P-ALARM
MST