application brochure a364 - designheating.com · 2019-01-14 · - application brochure universal...

1 of 12 © A 364 - 07/01

- Application BrochureUniversal Reset Control 364

A 36407/01

120 V (ac)

24 V (ac)

Mix Demand

Boiler Demand

DHW Demand

Setpoint Demand

WWSD

Min / Max

Melting

Universal Reset Control 364Mixing, Boiler & DHW 158033

Menu Item

Features of the Universal Reset Control 364Please refer to Essay E 005: Control Functions and Benefits for a detailed description of these features.

ApplicationThe Universal Reset Control 364 is designed to maximize the comfort and efficiency provided by a hydronic heating system. The control automatically adjusts the boiler and mixed loop water temperatures that are delivered to the heating system by using outdoor reset. For a mixing device, the 364 can use either a vari-able speed injection pump or a floating action mixing valve. The mixed water temperature can be used to supply either a space heating system or a single zone snow melting system. The 364 is capable of controlling an indirect Domestic Hot Water (DHW) storage tank and / or a setpoint load. The temperature of individual zones can be controlled by connecting either a conventional thermostat system or a tekmar zone control to the 364.

� Characterized Heating Curve� Indoor Temperature Feedback� Warm Weather Shut Down� Boiler Outdoor Reset� Boiler Differential (Automatic)� Boiler Minimum Supply� Boiler Post Purge� Fire Delay� Boiler Mass� Boiler Enable� DHW Boiler Reset Override� DHW Priority� DHW Priority Override� DHW Post Purge

� DHW Mixing Purge� Setpoint Boiler Reset Override� Mixing Outdoor Reset� Floating Action Output� Variable Speed Output� Boiler Protection� System Protection� Boiler Load Reset� Slab Protection� Slab Outdoor Reset� Snow Melting Setpoint� Snow Idling Setpoint� Cold Weather Cut Off� Pump / Integrated Exercising

2

6

7

8

10

11

13

19

20

21

22

23

24

25

26

29

31

32

35

37

38

39

53

55

56

57

59

60

© 2001

A 364 - 07/01

2 of 12

Concept DrawingThis is only a concept drawing, not an engineered drawing. It is not intended to describe a complete system, nor any particular system. It is up to the system designer to determine the necessary components for and configuration of the particular system being designed, including additional equipment, isola-tion relays (for loads greater than the control’s specified output ratings), and any safety devices which in the judgement of the designer are appropriate, in order to properly size, configure and design that system and to ensure compliance with building and safety code requirements.

tekmar Control Systems Ltd., Canada; tekmar Control Systems, Inc., U.S.A.; www.tekmarcontrols.comHead Office: 4611-23rd Street, Vernon, B.C. Canada, V1T 4K7; (250) 545-7749 Fax (250) 545-0650

- Application Mechanical

120 V (ac)

24 V (ac)

M MM

M M M

Remote Display Module (D1) 040

Outdoor Sensor(S1) 070

Boiler SupplySensor (S2) 071P1

P2

P4P3

V1

Z3 Z2 Z1

T3 T2 T1

Z6 Z5 Z4

T6 T5 T4

Mix SupplySensor (S3) 071

P5

A1

DHWTank

364

Class II Transformer

System OperationThe Universal Reset Control 364 provides full outdoor reset to three (or more) mixed zones and partial outdoor reset to three (or more) boiler zones. The output of the variable speed injection pump is modulated to provide a mixed supply water temperature to the mixed zones, and protect the boiler from flue gas condensation. The 364 also controls the supply of heat to an indirect Domestic Hot Water (DHW) tank. The boiler operates at the required temperature in order to satisfy all loads.

A1 = AquastatD1 = Remote Display Module 040P1 = Primary PumpP2 = Boiler System PumpP3 = Mix System PumpP4 = Variable Speed Injection PumpP5 = DHW PumpS1 = Outdoor Sensor 070S2 = Boiler Supply Sensor 071S3 = Mix Supply Sensor 071T1, .., T6 = ThermostatsV1 = Balancing Valve or Globe ValveZ1, .., Z3 = Mix Zone ValveZ4, .., Z6 = Boiler Zone Valve

A 364-107/01

3 of 12

© 2001

A 364 - 07/01



- Application Electrical A 364-107/01

Essential Control SettingsDIP Switch = Mixing Reset MIX 10K = NONEMIXING = VAR Boil SENS = SUPDHW THRU = PUMP DHW SENS = NONE

C24 V (ac)R

N120 V (ac)

Class IITransformer

L

S1S2S3

D1

Boiler

Zone ValveMotor EndSwitches

P1A1

Z1...Z3 Z4...Z6

P2 P3 P5 P4

1Mix Power

DemandBoil SysPmp P2

DHW BoilerPmp/Vlv

Mix SysPmp P3

2 3BoilDem

4ComDem

5Setp/DHW

6

N LPrimP1

9 10 1211 13 14 15 16 17PwrMix

18Opn

19Cls/Var

7 8Do not apply power

3642.4A10A 10A 10A 10A 10A 10A

20Com

21Mix10K

22MixRet

23MixSup

24Com

25BoilZo in

26Boil

27Com

28DHW

29Out

30tN2

A1 = AquastatD1 = Remote Display Module 040P1 = Primary PumpP2 = Boiler System PumpP3 = Mix System PumpP4 = Variable Speed Injection PumpP5 = DHW PumpS1 = Outdoor Sensor 070S2 = Boiler Supply Sensor 071S3 = Mix Supply Sensor 071T1, .., T6 = ThermostatsV1 = Balancing Valve or Globe ValveZ1, .., Z3 = Mix Zone ValveZ4, .., Z6 = Boiler Zone Valve

© 2001

A 364 - 07/01

4 of 12



- Application Mechanical A 364-207/01

System OperationThe Universal Reset Control 364 provides full outdoor reset to three (or more) mixed zones and partial outdoor reset to three (or more) boiler zones. The position of the mixing valve is modulated to provide a mixed supply water temperature to the mixed zones, and protect the boiler from flue gas condensation. The 364 also controls the supply of heat to an indirect Domestic Hot Water (DHW) tank. The boiler operates at the required temperature in order to satisfy all loads.

M M M

Remote DisplayModule (D1) 040


BoilerSupplySensor (S3) 071

P1

P2

V2

C1

S1

DHWTank

V3

Z3 Z2 Z1

T3 T2 T1R3 R2 R1

Z6 Z5 Z4

T6 T5 T4


V1M

∆P

M

120 V (ac)

24 V (ac)

364


C1 = Actuating Motor 011D1 = Remote Display Module 040P1 = Primary PumpP2 = Boiler System PumpR1, .., R3 = Relay 003S1 = DHW Sensor 071S2 = Outdoor Sensor 070S3 = Boiler Supply Sensor 071S4 = Mix Supply Sensor 071T1, .., T6 = ThermostatsV1 = DHW ValveV2 = 4-Way Mixing ValveV3 = Balancing Valve or Pressure Bypass ValveZ1, .., Z3 = Mix Zone PumpZ4, .., Z6 = Boiler Zone Valve

5 of 12

© 2001

A 364 - 07/01




Essential Control SettingsDIP Switch = Mixing Reset MIX 10K = NONE Boil SENS = SUP DHW THRU = VALVDHW SENS = DHW MIXING = FLOT

S3S4

Boiler


P1

Z4...Z6

P2 V1

C1

S1

S2

D1

ComC

Opnlimit

Clslimit

AuxSw

AuxSw

1 2 3 4 5 6 7Opn Cls

M 011

1Mix Power


DHW BoilerPmp/Vlv

Mix SysPmp P3

2 3BoilDem

4ComDem

5Setp/DHW

6

N LPrimP1

9 10 1211 13 14 15 16 17PwrMix

18Opn

19Cls/Var


3642.4A10A 10A 10A 10A 10A 10A

20Com

21Mix10K

22MixRet

23MixSup

24Com

25BoilZo in

26Boil

27Com

28DHW

29Out

30tN2

T1

T2

T3

Z1

Z2

Z3

R1

R2

R3

M

Class IITransformer

C24 V (ac)R

N120 V (ac) L

7812

6543

7812

6543

7812

6543

C1 = Actuating Motor 011D1 = Remote Display Module 040P1 = Primary PumpP2 = Boiler System PumpR1, .., R3 = Relay 003S1 = DHW Sensor 071S2 = Outdoor Sensor 070S3 = Boiler Supply Sensor 071S4 = Mix Supply Sensor 071T1, .., T6 = ThermostatsV1 = DHW ValveV2 = 4-Way Mixing ValveV3 = Balancing Valve or Pressure Bypass ValveZ1, .., Z3 = Mix Zone PumpZ4, .., Z6 = Boiler Zone Valve

© 2001

A 364 - 07/01

6 of 12




System OperationThe Universal Reset Control 364 provides partial outdoor reset to three (or more) boiler zones and snow melting for a single zone system. The output of the variable speed injection pump is modulated to mix down the boiler supply fluid temperature to protect the slab from thermal stress and to protect the boiler from flue gas condensation. The 364 also controls the supply of heat to an indirect Domestic Hot Water (DHW) tank. The boiler operates at the required temperature in order to satisfy all loads.

A1 = AquastatD1 = Remote Start/Stop Module 039P1 = Primary PumpP2 = Boiler System PumpP3 = Mix System PumpP4 = Variable Speed Injection PumpP5 = DHW PumpS1 = Outdoor Sensor 070S2 = Boiler Supply Sensor 071S3 = Slab Sensor 072/073S4 = Mix Return Sensor 071S5 = Mix Supply Sensor 071T1, .., T3 = ThermostatsV1 = Balancing Valve or Globe ValveZ1, .., Z3 = Boiler Zone Valve

MM M

120 V (ac)


Remote Start /Stop Module (D1) 039

Slab Sensor (S3) 072/073

Mix Return Sensor (S4) 071

Mix Supply Sensor (S5) 071

Boiler Supply Sensor (S2) 071P3 P4

Z3 Z2 Z1

T3 T2 T1

P1

P2P5

A1

DHWTank

V1

24 V (ac)

364


7 of 12

© 2001

A 364 - 07/01




Essential Control SettingsDIP Switch = Snow Melting MIXING = VARMIX 10K = SLAB DHW SENS = NONEBoil SENS = SUPDHW THRU = PUMP

C24 V (ac)R

N120 V (ac)

Class IITransformer

L

S1S2

Boiler


P1A1

Z1...Z3

P2 P3 P5 P4

S3

S4

S5

D1

1Mix Power


DHW BoilerPmp/Vlv

Mix SysPmp P3

2 3BoilDem

4ComDem

5Setp/DHW

6

N LPrimP1

9 10 1211 13 14 15 16 17PwrMix

18Opn

19Cls/Var


3642.4A10A 10A 10A 10A 10A 10A

20Com

21Mix10K

22MixRet

23MixSup

24Com

25BoilZo in

26Boil

27Com

28DHW

29Out

30tN2

A1 = AquastatD1 = Remote Start/Stop Module 039P1 = Primary PumpP2 = Boiler System PumpP3 = Mix System PumpP4 = Variable Speed Injection PumpP5 = DHW PumpS1 = Outdoor Sensor 070S2 = Boiler Supply Sensor 071S3 = Slab Sensor 072/073S4 = Mix Return Sensor 071S5 = Mix Supply Sensor 071T1, .., T3 = ThermostatsV1 = Balancing Valve or Globe ValveZ1, .., Z3 = Boiler Zone Valve

© 2001

A 364 - 07/01

8 of 12




System OperationThe Universal Reset Control 364 and the Boiler Control 262 are combined to provide full outdoor reset to three (or more) mixed zones and partial outdoor reset to three (or more) boiler zones. The position of the mixing valve is modulated to provide a mixed supply water temperature to the mixed zones and protect the boiler from flue gas condensation. The 364 also controls the supply of heat to an indirect Domestic Hot Water (DHW) tank. The boilers operate at the required temperature in order to satisfy all loads.

A1 = AquastatC1 = Actuating Motor 011P1 = Primary PumpP2 = Boiler System PumpP3 = DHW PumpR1, .., R3 = Relay 003S1 = Boiler Supply Sensor 071S2, S3 = Outdoor Sensor 070S4 = Boiler Return Sensor 071S5 = Mix Supply Sensor 071T1, .., T6 = ThermostatsV1 = 4-Way Mixing ValveZ1, .., Z3 = Mix Zone PumpZ4, .., Z6 = Boiler Zone Valve

M M M



Boiler Return Sensor (S4) 071

Boiler SupplySensor (S1) 071

Mix SupplySensor (S5) 071 P1

P2

V1

C1 P3

Z3 Z2 Z1

R3 R2 R1T3 T2 T1

Z6 Z5 Z4

T6 T5 T4

A1

120 V (ac)

24 V (ac)

364 262

M


9 of 12

© 2001

A 364 - 07/01




Essential Control Settings364: DIP Switch = Mixing Reset 262: MODE = 1 MIXING = FLOT STAGE 1 = AUTO Boil SENS = RET STAGE 2 = AUTO DHW THRU = VALV DHW SENS = NONE

S5

A1

C1


Z4...Z6

S4 S3

ComC

Opnlimit

Clslimit

AuxSw

AuxSw

1 2 3 4 5 6 7Opn Cls

M 011

Boiler#1

Boiler#2

S1

S2

T1

T2

T3

Z1

Z2

Z3

R1

R2

R3

Class IITransformer

C24 V (ac)R

N120 V (ac) L

P1 P2 P3

1Mix Power


DHW BoilerPmp/Vlv

Mix SysPmp P3

2 3BoilDem

4ComDem

5Setp/DHW

6

N LPrimP1

9 10 1211 13 14 15 16 17PwrMix

18Opn

19Cls/Var


3642.4A10A 10A 10A 10A 10A 10A

20Com

21Mix10K

22MixRet

23MixSup

24Com

25Boil

Zo in

26Boil

27Com

28DHW

29Out

30tN2

10A 10A 10A 10A 262

1Boiler Power

DemandDHW Stage Stage

Pmp/Vlv

2 3ComDem

4DHWDem

5SetpDem

6

N

7

L

8BoilP1

9 10 11

1

12

1

13

2

14

2

Do not apply power

15tN1/tN2

16Com

1710K

18UnOSw

19Com

20DHW

21Boil

22Out

7812

6543

7812

6543

7812

6543

A1 = AquastatC1 = Actuating Motor 011P1 = Primary PumpP2 = Boiler System PumpP3 = DHW PumpR1, .., R3 = Relay 003S1 = Boiler Supply Sensor 071S2, S3 = Outdoor Sensor 070S4 = Boiler Return Sensor 071S5 = Mix Supply Sensor 071T1, .., T6 = ThermostatsV1 = 4-Way Mixing ValveZ1, .., Z3 = Mix Zone PumpZ4, .., Z6 = Boiler Zone Valve

© 2001

A 364 - 07/01

10 of 12




System OperationThe Universal Reset Control 364 and two Zone Control 368’s are combined to provide full outdoor reset to four mixed zones and partial outdoor reset to four boiler zones. The output of the variable speed injection pump is modulated to provide a mixed supply water temperature to the mixed zones, and protect the boiler from flue gas condensation. The 364 also controls the supply of heat to an indirect Domestic Hot Water (DHW) tank. The boiler operates at the required temperature in order to satisfy all loads.

A1 = AquastatD1 = Remote Display Module 040P1 = Primary PumpP2 = Variable Speed Injection PumpP3 = Mix System PumpP4 = DHW PumpS1 = Outdoor Sensor 070S2 = Boiler Supply Sensor 071S3 = Mix Supply Sensor 071V1 = Balancing Valve or Globe ValveZ1, .., Z4 = Mix Zone ValvesZ5, .., Z8 = Boiler Zone Pumps


Remote DisplayModule (D1) 040

P3 P2 P1

Z8 Z7 Z6 Z5Z4 Z3 Z2 Z1

P4

A1

DHWTank

Boiler SupplySensor (S2) 071


V1

120 V (ac)

24 V (ac)

RTU's 054RTU's 054

M M M M


368 368 364

11 of 12

© 2001

A 364 - 07/01



- Application Electrical

Class IITransformer

C24 V (ac)R

N120 V (ac) L

Boiler

P1A1Z1 Z3

Z2 Z4

Z5 Z7

Z6 Z8

P3 P4 P2

S2S3

S1

D1

H

H

H

H

H

H

H

H

MM

MM

1Mix Power


DHW BoilerPmp/Vlv

Mix SysPmp P3

2 3BoilDem

4ComDem

5Setp/DHW

6

N LPrimP1

9 10 1211 13 14 15 16 17PwrMix

18Opn

19Cls/Var


3642.4A10A 10A 10A 10A 10A 10A

20Com

21Mix10K

22MixRet

23MixSup

24Com

25BoilZo in

26Boil

27Com

28DHW

29Out

30tN2

1System Power

Pmp

2

Pmp

3

N

4

L

15Com1-2

16

1

17

2

18Com3-4

19

3

20

4

Do not apply power

5ComSen

6RTU

1

7RTU

2

8ComSen

9RTU

3

10RTU

4

11UnOSw

12ZoOut

13ComSen

14ZoIn

6A6A6A 368

1System Power

Pmp

2

Pmp

3

N

4

L

15Com1-2

16

1

17

2

18Com3-4

19

3

20

4

Do not apply power

5ComSen

6RTU

1

7RTU

2

8ComSen

9RTU

3

10RTU

4

11UnOSw

12ZoOut

13ComSen

14ZoIn

6A6A6A 368

A 364-507/01

Essential Control Settings364: DIP Switch = Mixing Reset MIX 10K = ZOIN MIXING = VAR Boil SENS = SUP DHW THRU = PUMP DHW SENS = NONE

A1 = AquastatD1 = Remote Display Module 040P1 = Primary PumpP2 = Variable Speed Injection PumpP3 = Mix System PumpP4 = DHW PumpS1 = Outdoor Sensor 070S2 = Boiler Supply Sensor 071

S3 = Mix Supply Sensor 071V1 = Balancing Valve or Globe ValveZ1, .., Z4 = Mix Zone ValvesZ5, .., Z8 = Boiler Zone Pumps

Product design, software and literature are Copyright © 2001 by:tekmar Control Systems Ltd. and tekmar Control Systems, Inc.

All specifications are subject to change without notice.Printed in Canada. A 364 - 07/01.

Control Systems

tekmar Control Systems Ltd., Canadatekmar Control Systems, Inc., U.S.A.Head Office: 4611 - 23rd StreetVernon, B.C. Canada V1T 4K7(250) 545-7749 Fax. (250) 545-0650Web Site: www.tekmarcontrols.com

12 of 12

Specifi cations

The following are the recommended specifications for the Universal Reset Control 364.

• The control shall provide two outdoor reset temperatures. The outdoor reset strategy shall be characterized to the heating system and shall have adjustments for the outdoor design temperature, indoor design temperature, design supply tempera-ture and terminal unit.

• The control shall have the option to directly operate a variable speed injection pump or a mixing valve with a floating action actuator motor.

• The control shall have the option to provide heat through the mixing device to either a space heating system or a snow melt-ing system.

• The control shall have an adjustable Minimum Supply water temperature setting to help prevent condensation of flue gases and subsequent corrosion and blockage of the boiler’s heat exchanger and chimney.

• During extended periods of inactivity, the pumps and valves that are operated by the control shall be periodically exercised to prevent seizure during long idle periods.

• The control shall provide heat to the space heating system as needed unless the outdoor air temperature is warmer than the control’s Warm Weather Shut Down (WWSD) temperature setting.

• The control shall have the option of an automatic differential calculation for the operation of a single boiler in order to prevent short cycling.

• The control shall have the ability to directly control the boiler supply temperature or to send a boiler enable signal to another boiler operating control to allow for a staging control to be connected.

• The control shall have four separate lockable access levels to limit the number of adjustments available to various users.

• The control shall have a test button that activates a pre-programmed test sequence testing all of the control’s outputs.

• The control shall show a number of current sensor temperatures depending on the access level that has been selected.

• The control shall continuously monitor its temperature sensors and provide an error message upon a control or sensor failure.

• The control shall have the option of connecting a Remote Display Module to allow for remote monitoring and adjustment of the control.

• The control shall have the ability to operate a domestic hot water (DHW) system that uses either a zone valve or pump to control the flow to the DHW heat exchanger.

• The control shall have the ability to provide DHW priority and to limit the maximum allowed DHW priority period based on the outdoor air temperature.

• The control shall have the option of using either a DHW aquastat or a DHW sensor to control the DHW tank temperature.

• When operating a snow melting system, the control shall have the ability to limit the rate of rise of the snow melting supply temperature in order to prevent thermal shock of the snow melting system.

• The control shall have the ability to limit the amount of cool water being returned to the boiler through the mixing device in order to prevent low boiler operating temperatures and flue gas condensation.

• The control shall use slab outdoor reset when operating a snow melting system to prevent slab freeze up during sudden drops in outdoor temperature.

• The control shall have the option of connecting a Remote Start / Stop Module when operating in the snow melting mode.

application brochure a364 - designheating.com · 2019-01-14 · - application brochure universal...

Documents