260 Application Brochure

- Application
A 260-1
03/09
Boiler Control 260
Mechanical
260
Outdoor
Sensor (S2) 070
Class 2
Transformer
24 V (ac)
120 V (ac)
Z3
Z2
Z1
M
M
M
T2
T3
T1
Boiler
Sensor
(S1) 082
Electrical
10A
10A
P1
260
10A
Do not apply power
P1 = Boiler Pump
S1 = Boiler Sensor 082
S2 = Outdoor Sensor 070
T1, ..., T3 = Thermostats
U1 = tekmar Timer 033 (optional)
Z1, ..., Z3 = Zone Valve Motor End Switches
9 10 11 12
13 14 15 16 17 18
Boiler DHW Power Boil
Demand Demand L N P1 N
DHW Boiler
Pmp/Vlv
UnO Com Boil Out Com Indr
Sw
S1
DHW Valve
DHW Priority
Advanced
DHW during UnOcc
Installer
DHW Pump
1 2 3 4 5 6 7 8
Boiler
Off
Off
Zone Valve
Motor End
Switches
= Required
Z1
= Optional
Z2
U1
S2
P1
Z3
Class 2
Transformer
= Not Used
24 V (ac) C
120 V (ac) L
R
N
Note: This is only a concept drawing. The designer must determine whether this application will work in his system and must ensure compliance with
code requirements. Necessary auxiliary equipment, isolation relays (for loads greater than the specified tekmar internal relay ratings), and other safety
and limit devices must be added.
1 of 8
Copyright ©2009 A 260-1 03/09
A 260-1 03/09
System Operation
The Boiler Control 260 provides partial or full outdoor reset to three (or more) boiler zones. The boiler is operated at the temperature
required in order to satisfy the load.
Heat Source Details The heat source can be either a high mass or low mass non-condensing or low temperature boiler.
Piping Details Thermostat controlled zone valves are piped into the boiler loop. The boiler pump (P1) provides circulation through these
zones when heat is required.
Boiler Demand When heat is required in the boiler zones, the zone valve end switches send a Boiler Demand to the 260. The 260 turns
on the boiler pump (P1). The boiler supply water temperature is based on the Characterized Heating Curve settings. The boiler is fired
to satisfy the required boiler supply water temperature. Whenever the boiler is fired, the 260 aims to increase the boiler supply water
temperature to at least the BOIL MIN setting.
All control functions and specifications are listed in the Product Catalog I 000 and Data Brochure D 260.
Control Systems
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
Tel. (250) 545-7749 Fax. (250) 545-0650
Web Site: www.tekmarcontrols.com
Product design, software and literature are Copyright © 2009 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
2 of 8
All specifications are subject to change without notice.
Printed in Canada. A 260-1 03/09.
- Application
A 260-2
03/09
Boiler Control 260
Mechanical
260
Outdoor
Sensor (S2) 070
Class 2
Transformer
24 V (ac)
120 V (ac)
A2
Z3
Z2
M
M
T3
A1
Z1
M
T2
T1
M
V1
DHW
Tank
P1
Boiler
Sensor
(S1) 082
10A
10A
Electrical
260
10A
Do not apply power
A1 = DHW Aquastat
A2 = DHW High Limit Aquastat
P1 = Boiler Pump
S1 = Boiler Sensor 082
S2 = Outdoor Sensor 070
T1, ..., T3 = Thermostats
U1 = tekmar Timer 033 (optional)
V1 = DHW Valve
Z1, ..., Z3 = Zone Valve Motor End Switches
DHW Valve
DHW Priority
Advanced
DHW during UnOcc
Installer
DHW Pump
Off
Off
1 2 3 4 5 6 7 8
9 10 11 12
13 14 15 16 17 18
Boiler DHW Power Boil
Demand Demand L N P1 N
DHW Boiler
Pmp/Vlv
UnO Com Boil Out Com Indr
Sw
S1
Boiler
Zone Valve
Motor End
Switches
= Required
Z1
= Optional
U1
S2
A2
P1
A1
M
V1
Z2
= Not Used
Z3
Class 2
Transformer
24 V (ac) C
120 V (ac) L
R
N
Note: This is only a concept drawing. The designer must determine whether this application will work in his system and must ensure compliance with
code requirements. Necessary auxiliary equipment, isolation relays (for loads greater than the specified tekmar internal relay ratings), and other safety
and limit devices must be added.
3 of 8
Copyright ©2009 A 260-2 03/09
A 260-2 03/09
System Operation
The Boiler Control 260 provides partial outdoor reset to three (or more) boiler zones. The 260 also controls the supply of heat to an
indirect fired Domestic Hot Water (DHW) tank. The boiler is operated at the temperature required in order to satisfy the loads.
Heat Source Details The heat source can be either a high mass or low mass non-condensing boiler.
Piping Details Thermostat controlled zone valves are piped into the boiler loop. The boiler pump (P1) provides circulation through these
zones when heat is required. Heat is supplied to the DHW tank through a DHW valve (V1).
DHW Demand When the DHW aquastat (A1) calls for heat, the 260 turns on the boiler pump (P1), opens the DHW valve (V1), and
raises the boiler water temperature to at least 180°F (82°C).
Boiler Demand When heat is required in the boiler zones, the zone valve end switches send a Boiler Demand to the 260. The 260 turns
on the boiler pump (P1). The boiler supply water temperature is based on the Characterized Heating Curve settings. The boiler is fired
to satisfy the required boiler supply water temperature. Whenever the boiler is fired, the 260 aims to increase the boiler supply water
temperature to at least the BOIL MIN setting.
All control functions and specifications are listed in the Product Catalog I 000 and Data Brochure D 260.
Control Systems
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
Tel. (250) 545-7749 Fax. (250) 545-0650
Web Site: www.tekmarcontrols.com
Product design, software and literature are Copyright © 2009 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
4 of 8
All specifications are subject to change without notice.
Printed in Canada. A 260-2 03/09.
- Application
A 260-3
03/09
Boiler Control 260
Mechanical
260
Outdoor
Sensor (S2) 070
Class 2
Transformer
24 V (ac)
120 V (ac)
A2
Z3
Z2
M
M
T3
A1
Z1
M
T2
T1
DHW
Tank
P2
Boiler
Sensor
(S1) 082
P1
10A
10A
Electrical
260
10A
Do not apply power
A1 = DHW Aquastat
A2 = DHW High Limit Aquastat
P1 = Boiler Pump
P2 = DHW Pump
S1 = Boiler Sensor 082
S2 = Outdoor Sensor 070
T1, ..., T3 = Thermostats
U1 = tekmar Timer 033 (optional)
Z1, ..., Z3 = Zone Valve Motor End Switches
DHW Valve
DHW Priority
Advanced
DHW during UnOcc
Installer
DHW Pump
Off
Off
1 2 3 4 5 6 7 8
9 10 11 12
13 14 15 16 17 18
Boiler DHW Power Boil
Demand Demand L N P1 N
DHW Boiler
Pmp/Vlv
UnO Com Boil Out Com Indr
Sw
S1
Boiler
P1
Zone Valve
Motor End
Switches
= Required
U1
S2
A2
P2
Z1
= Optional
A1
Z2
= Not Used
Z3
Class 2
Transformer
24 V (ac) C
120 V (ac) L
R
N
Note: This is only a concept drawing. The designer must determine whether this application will work in his system and must ensure compliance with
code requirements. Necessary auxiliary equipment, isolation relays (for loads greater than the specified tekmar internal relay ratings), and other safety
and limit devices must be added.
5 of 8
Copyright ©2009 A 260-3 03/09
A 260-3 03/09
System Operation
The Boiler Control 260 provides partial or full reset to three (or more) boiler zones. The 260 also controls the supply of heat to an indirect
fired Domestic Hot Water (DHW) tank. The boiler is operated at the temperature required in order to satisfy the loads.
Heat Source Details The heat source can be either a high mass or low mass non-condensing or low temperature boiler. If using a low
temperature boiler, refer to section C3 of the Data Brochure for additional information.
Piping Details Thermostat controlled zone valves are piped into the boiler loop. The boiler pump (P1) provides circulation through these
zones when heat is required. Heat is supplied to the DHW tank through a DHW pump (P2).
DHW Demand When the DHW aquastat (A1) calls for heat, the 260 turns on the DHW pump (P2) and raises the boiler water temperature to at least 180°F (82°C). The control can provide DHW priority (refer to section C2 of the Data Brochure) by turning off the boiler
pump (P1). Once the DHW demand is removed, the 260 performs a DHW Post Purge and possibly a Mixing Purge.
Boiler Demand When heat is required in the boiler zones, the zone valve end switches send a Boiler Demand to the 260. The 260 turns
on the boiler pump (P1). The boiler supply water temperature is based on the Characterized Heating Curve settings. The boiler is fired
to satisfy the required boiler supply water temperature. Whenever the boiler is fired, the 260 aims to increase the boiler supply water
temperature to at least the BOIL MIN setting.
All control functions and specifications are listed in the Product Catalog I 000 and Data Brochure D 260.
Control Systems
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
Tel. (250) 545-7749 Fax. (250) 545-0650
Web Site: www.tekmarcontrols.com
Product design, software and literature are Copyright © 2009 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
6 of 8
All specifications are subject to change without notice.
Printed in Canada. A 260-3 03/09.
- Application
A 260-4
03/09
Boiler Control 260
Mechanical
260
Outdoor
Sensor (S2) 070
Class 2
Transformer
24 V (ac)
120 V (ac)
A2
R1
Z1
R2
T1
R3
T2
Z2
A1
T3
Z3
P1
DHW
Tank
Boiler
Sensor
(S1) 082
Electrical
10A
10A
260
10A
Do not apply power
A1 = DHW Aquastat
A2 = DHW High Limit Aquastat
P1 = DHW Pump
R1, ..., R3 = Relay 003
S1 = Boiler Sensor 082
S2 = Outdoor Sensor 070
T1, ..., T3 = Thermostats
U1 = tekmar Timer 033 (optional)
Z1, ..., Z3 = Zone Pumps
DHW Priority
DHW
during UnOcc
Return
Advanced
T3
Installer
DHW Pump
9 10 11 12
13 14 15 16 17 18
Boiler DHW Power Boil
Demand Demand L N P1 N
DHW Boiler
Pmp/Vlv
UnO Com Boil Out Com Indr
Sw
T1
T2
DHW Valve
1 2 3 4 5 6 7 8
Off
Off
7
8
1
2
R1
4
3
S1
Z1
7
8
1
2
6
5
Boiler
U1
S2
A1
R2
4
3
A2
Z2
7
8
1
2
= Required
6
5
6
5
R3
P1
4
3
Z3
= Optional
Class 2
Transformer
= Not Used
24 V (ac) C
120 V (ac) L
R
N
Note: This is only a concept drawing. The designer must determine whether this application will work in his system and must ensure compliance with
code requirements. Necessary auxiliary equipment, isolation relays (for loads greater than the specified tekmar internal relay ratings), and other safety
and limit devices must be added.
7 of 8
Copyright ©2009 A 260-4 03/09
A 260-4 03/09
System Operation
The Boiler Control 260 provides partial or full reset to three (or more) boiler zones. The 260 also controls the supply of heat to an indirect
fired Domestic Hot Water (DHW) tank. The boiler is operated at the required temperature in order to satisfy the loads.
Heat Source Details The heat source can be either a high mass or low mass non-condensing or low temperature boiler. If using a low
temperature boiler, refer to section C3 of the Data Brochure for additional information.
Piping Details Thermostat controlled zone pumps are piped into the boiler loop. Heat is supplied to the DHW tank through a DHW
pump (P1).
DHW Demand When the DHW aquastat (A1) calls for heat, the 260 turns on the DHW pump (P1) and raises the boiler water temperature to at least 180°F (82°C). The control can provide DHW priority (refer to section C2 of the Data Brochure) by turning off the Boil P1
contact and not allowing any of the boiler zones to operate. Once the DHW demand is removed, the 260 performs a DHW Post Purge
and possibly a Mixing Purge.
Boiler Demand When heat is required in the boiler zones, the zone pump relays send a Boiler Demand to the 260. The boiler supply
water temperature is based on the Characterized Heating Curve settings. The boiler is fired to satisfy the required boiler supply water
temperature. Whenever the boiler is fired, the 260 aims to increase the boiler supply water temperature to at least the BOIL MIN setting.
All control functions and specifications are listed in the Product Catalog I 000 and Data Brochure D 260.
Control Systems
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
Tel. (250) 545-7749 Fax. (250) 545-0650
Web Site: www.tekmarcontrols.com
Product design, software and literature are Copyright © 2009 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
8 of 8
All specifications are subject to change without notice.
Printed in Canada. A 260-4 03/09.