tekmar 270 Boiler Control - Manual (Page 19)

19 of 24 © 2010 D 270 - 08/10
Adjust Menu (1 of 2)
Room Occupied The desired room air temperature
during the occupied period.
35 to 100°F
(2 to 38°C)
Default = 70°F (21°C)
D1
Room Unoccupied The desired room air temperature
during the unoccupied period.
35 to 100°F
(2 to 38°C, OFF)
Default = 65°F (18°C)
D1
Outdoor Design The design outdoor air temperature
used in the heat loss calculations for the heating system.
-60 to 45°F
(-51 to 7°C)
Default = 10°F (-12°C)
D1
Terminal Unit The type of terminal units that are being
used in the heating system.
1 (HRF1), 2 (HRF2),
3 (COIL), 4 (CONV),
5 (RAD), 6 (BASE)
Default = 4
D1
Boiler Indoor The design indoor air temperature used in
the heat loss calculation for the heating system.
35 to 100°F
(2 to 38°C)
Default = 70°F (21°C)
D1
Boiler Design The design supply water temperature used
in the heat loss calculations for the heating system.
70 to 220°F
(21 to 104°C)
Default = 180°F (82°C)
B1
Boiler Minimum The minimum allowed boiler target
temperature. Check the boiler manufacturer’s manual for
a recommended setting. OFF, 80 to 180°F
(OFF, 27 to 82°C)
Default = 140°F (60°C)
B1
Boiler Maximum The maximum allowed boiler target
temperature.
120 to 225°F, OFF
(49 to 107°C, OFF)
Default = 200°F (93°C)
B1
Fire Delay The time delay the control can expect between
the time that the relay contact closes to fire the boiler and
when the burner actually fires. 0:00 to 4:00 minutes
(1 sec increment)
Default = 0:10 minutes
B2
B3 Boiler Mass The thermal mass characteristics of the
boiler that is being used.
1 (Lo)
2 (Med)
3 (Hi)
Default = 2 (Med)
B2
B3 Boiler Differential The temperature differential that the
control is to use when it is operating the boiler.
Au, 2 to 42°F
(Au, 1 to 23°C)
Default = Au
B3
Motor Speed The amount of time required for the modulat-
ing actuating motor to fully open the gas valve or operate the
fan speed from a stopped position to full speed.
10 to 230 seconds
Default = 30
Display Description Range
Section Installer Ad
vanced
Actual
Setting