tekmar 262 Boiler Control Installation - Manual (Page 22)

22 of 36 Copyright © D 262 -
12/08
Section
262 Adjust Menu (2 of 4)
• •
The design supply water temperature used in the
heat loss calculations for the heating system.
MODE = —1—
70 to 220˚F
(21 to 104˚C)
Default = 190
°F (88°C)
• •
The design outdoor air temperature used in the
heat loss calculations for the heating system.
MODE = —1—
-60 to 32˚F
(-51 to 0˚C)
Default = 10
°F (-12°C)
• The maximum boiler target supply water
temperature.
120 to 225˚F, OFF
(49 to 107˚C, OFF)
Default = 210 °F (99°C)
• •
• •
The starting water temperature used in the reset
ratio calculation for the heating system.
DIP switch = Reset Ratio
MODE = —1—
The minimum temperature allowed for the boiler
target temperature.
35 to 150˚F
(2 to 66˚C)
Default = 70
°F (21°C)
OFF, 80 to 180˚F
(OFF, 27 to 82˚C)
Default = 140
°F (60°C)
• •
• •
35 to 85˚F
(2 to 29˚C)
Default = 70
°F (21°C)
The outdoor starting temperature used in the
reset ratio calculation for the heating system.
DIP switch = Reset Ratio
MODE = —1—
• •
The time delay the control can expect between
the time the boiler contact closes and the burner
fires.
0:00 to 3:00 min
(in 1 sec. increments)
Default = 0:10 min
• • The thermal mass characteristics of the boilers
that are being used.
LITE, MED, HEVY
Default = MED
The differential that the control is to use when it
is operating the boiler(s).
AUTO, 2 to 42˚F
(AUTO, 1 to 23˚C)
Default = AUTO
• • •
Selects stage 1 as operational or not.
AUTO, OFF
Default = AUTO
• • •
Selects stage 2 as operational or not.
• • Sets the rotation time for the stages. This item is
used by the
Equal Run Time Rotation function.
10 to 72 hr, OFF
Default = 48 hr
• •
The device that is being used to supply flow to
the heat exchanger in the DHW storage tank.
No Indirect DHW tank = NONE
MODE = —1—
NONE, PUMP, VALV
Default = PUMP
AUTO, OFF
Default = AUTO
• •
Selects if a tekmar sensor is being used to
m e a s u r e t h e D H W t a n k t e m p e r a t u r e .
DHW THRU ≠ NONE
NONE, DHW
Default = NONE
Actual
Setting
LT
D
USER INST ADV
Range
Access
Level
Description Item Field
B1
B1
B1
B1
B1
B1
A
A
A
A
A
A
C1
C1