tekmar 262 Boiler Control Installation - Manual (Page 23)

23 of 36 Copyright © D 262 - 12/08
Section
262 Adjust Menu (3 of 4)
• • •
• • •
The DHW storage tank’s temperature during the
Occupied period.
DHW SENS = DHW
DHW THRU
≠ NONE
The DHW storage tank’s temperature during the
UnOccupied period.
DIP switch = Setback
DHW SENS = DHW
DHW THRU
≠ NONE
OFF, 70 to 190˚F
(OFF, 21 to 88˚C)
Default = 140 °F (60°C)
OFF, 70 to 190˚F
(OFF, 21 to 88˚C)
Default = 120 °F (49°C)
Occ
UnOcc
•
Sets the differential for the DHW storage tank.
DHW SENS = DHW
MODE = —2—
1 to 42˚F
(1 to 23˚C)
Default = 6 °F (3°C)
Actual
Setting
LT
D
USER INST ADV
Range
Access
Level
Description Item Field
C1
C1
C4
• •
• •
The minimum boiler supply temperature to the
DHW heat exchanger during the Occupied period.
DHW SENS = NONE
DHW THRU
≠ NONE
Selects whether or not DHW will be generated
during the UnOccupied period.
DIP switch = Setback
DHW SENS = NONE
DHW THRU
≠ NONE
OFF, 100 to 220˚F
(OFF, 38 to 104˚C)
Default = 180 °F (82°C)
OFF,
DHW XCHG
Occ setting
Default = OFF
UnOcc
Occ
• •
• •
Enables or disables the DHW priority function
over the heating load.
DHW THRU = PUMP
MODE = —1—
The minimum boiler supply temperature when a
setpoint demand is present during the Occupied
period.
MODE = —1—
NONE, BOIL
Default = BOIL
OFF, 70 to 220˚F
(OFF, 21 to 104˚C)
Default = 180 °F (82°C)
Occ
UnOcc
Selects whether or not a setpoint demand will be
responded to during the UnOccupied period.
DIP switch = Setback
MODE = —1—
• •
OFF,
SETPOINT
Occ setting
Default = OFF
• •
Selects whether or not the setpoint demand will
have priority over the heating system.
MODE = —1—
NONE, BOIL
Default = NONE
• • •
The system’s warm weather shut down during the
Occupied period.
MODE = —1—
35 to 100˚F, OFF
(2 to 38˚C, OFF)
Default = 70 °F (21°C) Occ
C1
C1
C2
D1
D1
D1
B1