Tekmar Boiler Control 265 - Adjust Menu - Boiler and DHW Settings; Boiler 3 Performance Settings; DHW Mode and Exchange Settings

© 2010 D 265 - 07/10 32 of 36
Adjust Menu (4 of 5)
B
Boiler Mass 3 The thermal mass characteristics of
Boiler 3.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
1 (Lo), 2 (Med), 3 (Hi)
Default = 2
B
Motor Speed 3 The amount of time required for the
modulating actuating motor to fully open the gas valve or
operate the fan speed from a stopped position to full speed.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
10 to 230 sec
Default = 30
B
Minimum Boiler 3 Output The minimum boiler 3 output
in 10,000’s of BTU / hour.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
1 to 1999
Default = 10
B
Maximum Boiler 3 Output The maximum boiler 3
output in 10,000’s of BTU / hour.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
1 to 1999
Default = 50
B
Boiler Modulation 3 Selects either a 4 to 20 mA or a
0 to 20 mA output signal.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
4:20, 0:20
Default = 4:20
B
Minimum Modulation 3 The minimum percent modu-
lation of the burner.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
0 to 50%
Default = 0%
B
Maximum Modulation 3 The maximum percent modu-
lation of the burner.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
50 to 100%
Default = 100%
G
Purge Boiler Pump 3 The length of time that the boiler
pump 3 will continue to run after Boiler 3 is shut off.
This item is only available when Boiler 3 is set to Au
(automatic) or CP1 (copy 1) and DHW MODE is set to OFF.
OFF, 0:10 to 19:55 min
(10 sec increment)
Default = 0:20 min
D1
DHW Mode Selects the DHW mode of operation.
This item is only available when Boiler 3 is set to OFF.
OFF
1 (parallel, no priority),
2 (parallel, priority),
3 (pri-sec, no priority),
4 (pri-sec, priority)
Default = OFF
D1
DHW Exchange Occupied The minimum boiler
supply temperature to the DHW heat exchanger during
the Occupied period.
This item is only available when Boiler 3 is set to OFF
and DHW MODE is set to 1 through 4.
OFF, 100 to 220°F
(OFF, 38 to 104°C)
Default = 180°F (82°C)
D1
DHW Exchange Unoccupied Selects whether DHW is
operational during the UnOccupied period.
This item is only available when Boiler 3 is set to OFF
and DHW MODE is set to 1 through 4.
OFF, On
Default = OFF
D1
DHW Boilers Selects how many boilers are to be
operated during DHW generation.
This item is only available when Boiler 3 is set to OFF
and DHW MODE is set to 1 through 4.
1, 2
Default = 2
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Section Installer
Adv
Actual
Setting