Tekmar 263 Boiler Control User Manual download pdf (Page 27)

Adjust Menu (1 of 3)

Mode Selects the control mode of operation.

1 (2 on / off)

2 (1 mod & pump)

Default = 1

Room Occupied The desired room air temperature

during the occupied period.

35 to 100°F

(2 to 38°C)

Default = 70°F (21°C)

Room Unoccupied The desired room air temperature

during the unoccupied period.

This item is only available when the Setback / None DIP

switch is set to Setback.

35 to 100°F

(2 to 38°C, OFF)

Default = 65°F (18°C)

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)

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

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)

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)

Boiler Minimum The minimum allowed boiler target

temperature. Check the boiler(s) manufacturer’s manual

for recommend return water temperatures.

OFF, 80 to 180°F

(OFF, 27 to 82°C)

Default = 140°F (60°C)

Boiler Maximum The maximum allowed boiler target

temperature.

120 to 225°F, OFF

(49 to 107°C, OFF)

Default = 200°F (93°C)

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

Boiler Mass The thermal mass characteristics of the

boilers that are being used.

1 (Lo)

2 (Med)

3 (Hi)

Default = 2 (Med)

Stage Delay The minimum time delay between the

operation of stages.

This item is only available in operating mode 1.

Au, 0:30 to 19:55

minutes

Default = Au

Display

Description

Range

Section

Installer

Advanced

Actual

Setting

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 35 36

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Tekmar 263 Boiler Control User Manual Page 27

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