- Application A Boiler Control 262 & One Stage Setpoint Control 150. Mechanical Remote Display Module (D1) 040 MODE 1

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1 - Application Boiler Control & One Stage Setpoint Control 150 A -1 07/99 echanical Remote Display odule () 040 Outdoor Sensor () ODE 1 Class II Transformer 120 V (ac) 24 V (ac) R1 A2 Z1 Z2 Z3 T1 T2 T3 Z7 P4 S4 Heat Exchanger P3 DHW Tank S3 Low / High Fire Boiler Z3 Z3 Z3A 1 B1 Electrical = Pool or Spa High Limit Aquastat A2 = DHW High Limit Aquastat = Remote Display odule 040 (optional) = Boiler Pump = DHW Pump P3 = Pool or Spa Pump P4 = Pool or Spa Recirc. Pump R1 = Relay 003 = Boiler sensor 071 = Outdoor sensor 070 S3 = DHW Sensor 071 S4 = Pool or Spa Sensor 071 T1,.., T3 = Thermostats U1 = tekmar Timer 031 (optional) Z1,.., Z3 = Zone Valve otor End Switches 10A 10A 10A 10A Do not apply power Boiler ComDHWSetp Demand DemDemDem Power N L Boil DHW Pmp/Vlv 1 Stage Stage Boiler Low Boiler High tn1 / Com 10K UnO Com DHWBoil Out tn2 Sw U1 S3 PW 8A On Power Off C- R+ Com N/O 8A 150 No Power N/C Sensor S4 120 V (ac) L N Class II Transformer 24 V (ac) C T1 T2 T3 R Z1 Z2 Z3 A2 P R 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 1999 A -07/99

2 System Operation A -1 07/99 The Boiler Control provides partial or full outdoor reset to three (or more) boiler zones. The Setpoint Control 150 controls the temperature of the pool or spa. The boiler is operated at the temperature required in order to satisfy the loads. The also controls the supply of heat to an indirect Domestic Hot Water (DHW) tank. An optional Remote Display odule (RD) provides remote adjustment and monitoring of the control. Heat Source Details The heat source can be either a high mass or low mass non-condensing boiler or low temperature boiler. If using a low temperature boiler, refer to sections C3 and of the Data Brochure for additional information. Piping Details Thermostat controlled zone valves are piped into the boiler loop. The boiler pump () provides circulation through these zones when heat is required. The pool or spa heat exchanger is piped into the boiler loop and the temperature is controlled through a pump (P3). Heat is supplied to the DHW tank through a DHW pump (). DHW Demand When the DHW sensor (S3) calls for heat, the turns on the DHW pump () and raises the boiler water temperature to at least the DHW TANK setting plus 40 F (22 C). The control maintains the DHW tank temperature at the DHW TANK setting. The control can provide DHW priority (refer to sections C2 and C3 of the Data Brochure) by turning off the boiler pump (). Once the DHW demand is removed, the performs a DHW Post Purge and possibly a ixing Purge. Setpoint Demand The Setpoint Control 150 cycles relay R1 in order to control the heat exchanger pump (P3) and maintain the pool or spa temperature. When the 150 requires heat, it provides a Setpoint Demand to the through relay R1. The increases the boiler temperature to at least the SETPOINT setting. The control can provide Setpoint priority (refer to sections C3 and of the Data Brochure) by turning off the boiler pump (). Boiler Demand When heat is required in the boiler zones, the zone valve end switches send a Boiler Demand to the. The turns on the boiler pump (). The boiler supply water temperature is based on the Reset Ratio or Characterized Heating Curve settings. The boiler is staged to satisfy the required boiler supply water temperature. Whenever the boiler is fired, the aims to increase the boiler temperature to at least the Boil IN setting. All control functions and specifications are listed in the Product Catalog I 000 and the Data Brochure D. Required aterial and Essential Control Settings Required tekmar Products Boiler Control One Stage Setpoint Control 150 Universal Sensor x tekmar DPDT Relay 003 Optional tekmar Products Remote Display odule (RD) 040 Timer 031 Essential Application Control Settings (Adjust enu) Item Field Setting ODE 1 STAGE 1 AUTO STAGE 2 AUTO DHW SENS DHW ROTATE OFF Note For all other settings, refer to the Data Brochure D and D 150. Control Systems tekmar Control Systems Ltd., Canada tekmar Control Systems, Inc., U.S.A. Head Office: rd Street Vernon, B.C. Canada V1T 4K7 Tel. (250) Fax. (250) Web Site: Product design, software and literature are Copyright 1999 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 -1 07/99.

3 Boiler Control - Application A -2 07/99 echanical Remote Display odule () 040 Outdoor Sensor () 070 ODE V (ac) T T T P V1 Z1A Z1A B3 B3A Electrical = Remote Display odule 040 (optional) = Boiler Pump = Boiler Sensor 071 = Outdoor Sensor 070 T = Thermostatic Radiator Valve U1 = tekmar Timer 031 (optional) V1 = Balancing valve, globe valve, or pressure differential valve 10A 10A 10A 10A Do not apply power Boiler ComDHWSetp Demand DemDemDem Power N L Boil DHW Stage Stage Pmp/Vlv tn1 / Com 10K UnO Com DHWBoil Out tn2 Sw Boiler #1 U1 Boiler #2 120 V (ac) L 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 1999 A -07/99

4 System Operation A -2 07/99 The Boiler Control provides partial or full outdoor reset to three (or more) thermostatic radiator valve zones. Constant circulation to the zones is provided by the boiler pump (). The boilers are staged as required to provide the supply water temperature that satisfies the loads. An optional Remote Display odule (RD) provides remote adjustment and monitoring of the control. Heat Source Details The heat source can be either high mass or low mass non-condensing or low temperature boilers. Piping Details Thermostatic radiator valve (TRV) zones are piped into the boiler loop. A pressure differential valve (V1) provides a bypass for the boiler pump () in the event that most of the TRV s are closed. The boilers are piped using parallel primary / secondary in order to provide equal and isolated flow through each boiler. Boiler Demand When the outdoor air temperature is below the Warm Weather Shut Down (WWSD) setting, the turns on the boiler pump (). The boiler supply water temperature is based on the Reset Ratio or Characterized Heating Curve settings. The boilers are staged to satisfy the required boiler supply water temperature. Whenever the boilers are fired, the aims to increase the boiler supply water temperature to at least the Boil IN setting. All control functions and specifications are listed in the Product Catalog I 000 and the Data Brochure D. Required aterial and Essential Control Settings Required tekmar Products Boiler Control Optional tekmar Products Remote Display odule (RD) 040 Timer 031 Essential Application Control Settings (Adjust enu) Item Field Setting ODE 1 STAGE 1 AUTO STAGE 2 AUTO Note For all other settings, refer to the Data Brochure D. Control Systems tekmar Control Systems Ltd., Canada tekmar Control Systems, Inc., U.S.A. Head Office: rd Street Vernon, B.C. Canada V1T 4K7 Tel. (250) Fax. (250) Web Site: Product design, software and literature are Copyright 1999 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 -2 07/99.

5 Boiler Control - Application A -3 07/99 echanical Class II Transformer Remote Display odule () 040 Outdoor Sensor () 070 ODE V (ac) 24 V (ac) S3 Z1 Z2 Z3 R1 T1 R2 T2 R3 T3 B4 Z5A Z5A Z5B D9 Electrical = DHW High Limit Aquastat = Remote Display odule 040 (optional) = Boiler Pump = DHW Pump R1,.., R3 = Relay 003 = Boiler Sensor 071 = Oudoor Sensor 070 S3 = DHW Sensor 071 T1,.., T3 = Thermostats U1 = tekmar Timer 031 (optional) Z1,.., Z3 = Zone Pumps 120 V ac Class II Transformer C 24 V ac L N R T1 T2 T R R2 R3 Z1 Z2 Z3 10A 10A 10A 10A Do not apply power Boiler ComDHWSetp Demand DemDemDem Power N L Boil DHW Stage Stage Pmp/Vlv Boiler #1 Boiler # tn1 / Com 10K UnO Com DHWBoil Out tn2 Sw U1 S3 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 1999 A -07/99

6 System Operation A -3 07/99 The Boiler Control provides partial outdoor reset to three (or more) boiler zones. The also controls the supply of heat to an indirect Domestic Hot Water (DHW) tank. The boilers are staged as required to provide the supply water temperature that satisfies the loads. An optional Remote Display odule (RD) provides remote adjustment and monitoring of the control. Heat Source Details The heat source can be either high mass or low mass non-condensing boilers. Piping Details Thermostat controlled zone pumps are piped off the boiler loop as a secondary loop. Heat is supplied to the DHW tank through a DHW pump (). The boilers are piped in reverse return in order to ensure equal flow through both boilers. The boiler pump () provides flow through the boilers and ensures flow past the DHW tank take-off and the zone pump take-off. DHW Demand When the DHW sensor (S3) calls for heat, the turns on the DHW pump () and the boiler pump () and raises the boiler water temperature to at least the DHW TANK setting plus 40 F (22 F). The control maintains the DHW tank at the DHW TANK setting. Once the DHW demand is removed, the performs a DHW Post Purge and possibly a ixing Purge. Boiler Demand When heat is required in the heating zones, the zone pump relays send a Boiler Demand to the. The turns on the boiler pump (). The boiler supply water temperature is based on the Reset Ratio or Characterized Heating Curve settings. The boilers are staged to satisfy the required boiler supply water temperature. Whenever the boilers are fired, the aims to increase the boiler supply water temperature to at least the Boil IN setting. All control functions and specifications are listed in the Product Catalog I 000 and the Data Brochure D. Required aterial and Essential Control Settings Required tekmar Products Boiler Control 3 x tekmar DPDT Relay 003 Optional tekmar Products Remote Display odule (RD) 040 Timer 031 Essential Application Control Settings (Adjust enu) Item Field Setting ODE 1 STAGE 1 AUTO STAGE 2 AUTO DHW THRU VALV DHW SENS DHW Note For all other settings, refer to the Data Brochure D. Control Systems tekmar Control Systems Ltd., Canada tekmar Control Systems, Inc., U.S.A. Head Office: rd Street Vernon, B.C. Canada V1T 4K7 Tel. (250) Fax. (250) Web Site: Product design, software and literature are Copyright 1999 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 -3 07/99.

7 Boiler Control - Application A -4 07/99 echanical Remote Display odule () 040 ODE 2 Alarm 120 V (ac) 3 D6 B4 Electrical = DHW High Limit Aquastat (optional) = Remote Display odule 040 (optional) = Boiler Pump = DHW Recirc. Pump = Boiler Sensor 071 = DHW Sensor 071 U1 = tekmar Timer 031 (optional) 10A 10A 10A 10A Do not apply power Boiler ComDHWSetp Demand DemDemDem Power N L Boil DHW Stage Stage Pmp/Vlv tn1 / Com 10K UnO Com DHWBoil Out tn2 Sw Boiler #1 U1 Alarm Boiler #2 N/O N/C 120 V (ac) L 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 1999 A -07/99

8 System Operation A -4 07/99 The Boiler Control provides control of two boilers for a dedicated Domestic Hot Water (DHW) storage system. An optional Remote Display odule (RD) provides remote adjustment and monitoring of the control. Heat Source Details The heat source can be high mass or low mass non-condensing or low temperature boilers or any boilers designed for this type of application. Piping Details The boilers are piped in reverse return providing equal flow through each boiler. The DHW recirculation loop pump () provides constant hot water flow past the fixtures. DHW Demand When the DHW sensor () calls for heat, the turns on the boiler pump () and raises the boiler water temperature to at least the DHW TANK setting plus 40 F (22 C). The control maintains the DHW tank temperature at the DHW TANK setting. The RD is capable of sounding an alarm if the DHW tank overheats. When the DHW high limit aquastat () is triggered, the receives an external DHW Demand. When the receives the demand, a DHW Error (DHW ERR) is registered and the alarm contact of the RD is closed. To clear this error, refer to the Data Brochure D. Recirculation The recirculation pump () operates continuously when the control is in the Occupied mode. The recirculation pump () is turned off when the control is in the UnOccupied mode. All control functions and specifications are listed in the Product Catalog I 000 and the Data Brochure D. Required aterial and Essential Control Settings Required tekmar Products Boiler Control Optional tekmar Products Remote Display odule (RD) 040 Timer 031 Essential Application Control Settings (Adjust enu) Item Field Setting ODE 2 STAGE 1 AUTO STAGE 2 AUTO DHW SENS DHW Note For all other settings, refer to the Data Brochure D. Control Systems tekmar Control Systems Ltd., Canada tekmar Control Systems, Inc., U.S.A. Head Office: rd Street Vernon, B.C. Canada V1T 4K7 Tel. (250) Fax. (250) Web Site: Product design, software and literature are Copyright 1999 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 -4 07/99.

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