Submittal Sheet

Job __________________________
Designer ______________________
Contact _______________________
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HVAC Systems Replaces: New
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The Boiler Control 260 is designed to operate a single boiler using outdoor reset. It can be used in applications ranging from baseboard
or mixed radiant heating systems, to combination space heating and domestic hot water heating installations. This control regulates a
single heating water temperature through outdoor reset and/or Domestic Hot Water control. It is capable of controlling a single on/off
boiler and can receive both space heating and/or DHW heat demands.

N / A
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Outdoor Temperature Reset
Indoor Temperature Feedback (optional)
Setback input for energy savings
Warm Weather Shut Down
Automatic Boiler Differential
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Quick setup for easy installation and
programming of control
User comfort adjustment to increase or
decrease building space temperature
Advanced settings to fine-tune building
requirements
Pump and valve exercising
Powered boiler pump output
DHW pump or valve operation
Optional DHW priority
Test sequence to ensure proper
component operation
20 V (ac) power supply
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 -----------------------------------------------------
Front View
Side View
2–7/8”
(72 mm)
1/2” Knock-out
(x 5 back) (x 5 bottom)
Mounting Base
CL
CL
1/2”
(13 mm)
7/8”
(23 mm)
To increase or decrease the
building temperature:

One Stage Boiler & DHW
Boiler Demand

Made in Canada by
tekmar Control Systems Ltd.
tektra 90-0
Power:
Relays:
Demand:
20V + 0% 50/60 Hz 300 VA
240V (ac) 0 A /3 hp
20 to 260 V (ac) 2 VA
Signal wiring must be
rated at least 300V.
H54D

°


Test
Display defaults back to
VIEW
menu after 20 sec.
ROOM
- Set to desired room temp.
OUTDR DSGN
- Set to coldest (design)
outdoor temp.
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Terminal Unit Set to
High Mass Radiant
Low Mass Radiant
Fan Coil
Convector
Radiator
Baseboard

2
3
4
5
6
Refer to brochure for more information
Terminal Unit
Fire Delay DHW Demand
Return
Off
Installer
Advanced
DHW during UnOcc
DHW Pump
Off
DHW Priority
DHW Valve
Item
Press the
Item
, , buttons
simultaneously for  sec. to
enter the
ADJUST
menu
Use the
, buttons to
adjust the
ROOM
setting

Meets Class B:
Canadian ICES
FCC Part 15
Date Code

3
Uno
Sw
4
Com
5
Boil
6
Out
7
Com
8
Indr
9 0  2
Boiler
 2 3 4 5 7
L
6
N
Boil
P1
8
N
Power
Boiler
Demand
DHW
Demand
DHW
Pmp/Vlv
6–5/8”
(170 mm)
7–5/8”
(193 mm)
1–7/8” (49 mm)
1/2”
(14 mm)
Ø 3/16” (5 mm)
 One Stage Boiler & DHW
Literature D260, A260, D00, D070
Control Microprocessor control. This is not a safety (limit) control
Packaged weight 3.0 lb. (340 g)
Dimensions 6-5/8” H x 7-9/6” W x 2-3/6” D (70 x 93 x 72 mm)
Enclosure Blue PVC plastic, NEMA type 
Approvals CSA C US, meets class B: ICES & FCC Part 5
Ambient conditions
Indoor use only, 32 to 3°F (0 to 45°C), RH ≤90% Non-
condensing
Power supply 20 V (ac) ±0%, 50/60 Hz, 300 VA
Relays 240 V (ac) 0 A, /3 hp
Demands 20 to 260 V (ac) 2 VA
Sensors NTC thermistor, 0 kΩ @ 77°F (25°C ±0.2°C) ß=3892
–Included Outdoor Sensor 070 and Universal Sensor 082
–Optional tekmar type #: 033, 076, 077, 084
Warranty Limited 3 Year (See D260 for full warranty)