tekmar 157 Difference Setpoint Control - Manual (Page 13)

13 of 16 © 2010 D 157 - 06/10
Item Field Range Description Actual Setting
2 to 45°F
(1 to 25°C)
Default = 10°F
(5.5°C)
MAXIMUM STORAGE DIFFERENTIAL
The variable speed pump will turn back on when
the storage temperature falls this differential below
the Max Storage Target.
70 to 190°F
(21 to 88°C)
Default = 140°F
(60°C)
MINIMUM STORAGE TARGET
(Mode 2)
The supplemental heat pump, P2, will turn on when
the storage temperature falls below this target.
Optional Auxiliary Sensor.
2 to 45°F
(1 to 25°C)
Default = 10°F
(5.5°C)
MINIMUM STORAGE DIFFERENTIAL
(Mode 2)
The supplemental heat pump will turn off when the
storage temperature rises this differential above the
Min Storage Target. Optional Auxiliary Sensor.
190 to 260°F,
OFF
(88 to 127°C,
OFF
Default = OFF
MAXIMUM SOURCE TARGET
The variable speed pump will turn off if the source
temperature rises above the Maximum Source
Target. See Table 3 for Mode 3 operation.
2 to 45°F
(1 to 25°C)
Default = 10°F
(5.5°C)
MAXIMUM SOURCE DIFFERENTIAL
(Maximum Source Target ≠ Off)
The heat dump pump will turn off when the
storage temperature falls this differential below
the Maximum Source Target.
OFF, 50 to
185°F
(OFF, 10 to
85°C)
Default = OFF
MINIMUM SOURCE TARGET
If the source temperature drops below this setpoint
the injection pump is turned off
2 to 45°F
(1 to 25°C)
Default = 10°F
(5.5°C)
MINIMUM SOURCE DIFFERENTIAL
(Min Source Target ≠ Off)
The variable speed pump will turn back on when
the source temperature rises this differential above
the Minimum Source Target.
50 to 220°F
(10 to 104°C)
Default = 100°F
(38°C)
MAXIMUM AUXILIARY TARGET
(Mode 3)
The heat dump pump will turn off when the auxiliary
temperature rises above this target.
2 to 45°F
1 to 25°C
Default = 10°F
(5.5°C)
MAXIMUM AUXILIARY DIFFERENTIAL
(Mode 3)
The heat dump pump will turn on when the
auxiliary temperature falls this differential below
the Maximum Auxiliary Target.
ON, OFF
Default = OFF
FREEZE PROTECTION
(Mode ≠ 4)
If the source temperature falls below 35°F (2°C),
the variable speed pump will turn on at 100% output
until the source temperature rises to 40°F (4°C).
Adjust Menu (2 of 3)
ADJUS
T MENU
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