tekmar 264 Boiler Control - Manual

- Data Brochure
Boiler Control 264
D 264
12/08
1 of 32 © 2008 D 264 - 12/08
The tekmar Boiler Control 264 can control the supply water temperature from up to 4 on / off stages based on outdoor temperature,
control for Domestic Hot Water (DHW) generation, or a setpoint requirement. A large easy to read display provides current system
temperatures and operating status. The control has outputs for a primary pump and either a combustion air damper or alarm. Based
on the mode of operation selected, the control can operate different combinations of boiler stages and boiler pumps.
Additional functions include:
• Installer and Advanced access levels
• Primary pump output
• Individual boiler pump outputs (in applicable modes)
• Pump exercising
• Pump purging (primary and boiler)
• 0 – 10 V (dc) input signal
• Boiler demand for space heating loads
• DHW demand for DHW loads
• Setpoint demand for setpoint loads
• Test sequence to ensure proper component operation
• CSA C US certified
• Setback input for energy savings
Input
Universal Sensor
Included
Input
Universal Sensor
Included
Input
Outdoor
Sensor
Included
Input
Timer or Switch
Optional
Input
0-10 V (dc)
External Signal
Input
Setpoint / DHW
Demand
Input
115 V (ac)
Power Supply
Input
Boiler
Demand
Output
Primary
Pump
Output
Boiler
Output
Pump
Or
Output
Combustion Air
or Alarm
Or
Output
DHW Pump Or
DHW Valve
M
Or
Or
External Input
Setp/
DHW UnO Com
1 1 0 1
H2027D
Boiler Control 264
Four Stage Boiler & DHW / Setpoint
115 V ±10% 50/60 Hz 600 VA
230 V (ac) 5 A 1/3 hp
20 to 260 V (ac) 2 VA
Ret
Boil
Made in Canada by
tekmar Control Systems Ltd.
tektra 943-02
not testing
testing
red
red
testing paused
Power
Relays
Demands
18 4 3 2 1 5
Out
Signal wiring must be rated at least 300 V.
Test
Menu Item
19 15 14 23
Power
N
9 8
Prim
L
Com
Dem
7 6
Boil
Dem P1 Sw Sup
Boil
Do not apply power
Boiler Demand
DHW / Setpoint Demand
WWSD
22
C.A. /
13
Alarm
12 16 17
DHW
Pmp/Vlv 1
Relay
1 2
Relay
2 3
Relay
3
Fixed Last
Rotate
Fixed Lead
Exercise
Alarm
Adv
Installer
C.A.
Up to 2 Lo/Hi Boilers
1 Three Stage Boiler & 1 Pump
Modes
1
2
3
4
For maximum
heat, press &
hold Test for 3
seconds.
20 21
4
Relay
4
Meets Class B:
Canadian ICES
FCC Part 15
Date Code
External Input Signal
Offset
Stand Alone
Priority Override
Note:
Boiler, DHW, or
setpoint demand
must be powered
with 20 to 260 V (ac)
before the boiler is
able to fire.