App of 4 Way Valve

8/13/2019 App of 4 Way Valve

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1 of 40 2005 A 001 - 05/05

A 00105/05tekmarNet 4 Applications

- Application Brochure

Zone Expansion Module 325 Zone Expansion Module 326 Zone Manager 335 Zone Manager 336 Zone Manager 337

Boiler Reset Module 420 Mixing Reset Module 421 Universal Reset Module 422 Mixing Expansion Module 440 tekmarNet 4 Thermostat 541

tekmarNet 4 Thermostat 542 tekmarNet 4 Thermostat 543 tekmarNet 4 Thermostat 544 tekmarNet 4 Thermostat 545 tekmarNet 4 Thermostat 546

Featured Products:

InformationBrochure

Choose controls

to matchapplication

1 Rough InWiring

Rough-in

wiringinstructions

WiringBrochureWiring and

installation ofspecific control

JobRecord

Record settings &

wiring details forfuture reference

643ApplicationBrochureDesign your

mechanicalapplications

2 DataBrochure

Control settings

and sequence ofoperation

5


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2005 A 001 - 04/05 2 of 40

Table of Contents

Application Information ----------------------------------------------------------------------------------------------------------------------------3

Module Applications ---------------------------------------------------------------------------------------------------------------------------4 - 31

Thermostat Applications ------------------------------------------------------------------------------------------------------------------- 32 - 39

ApplicationNumber

# of Boiler TempZones

# of Mix 1 TempZones Mix 1 Device

# of Mix 2 TempZones Mix 2 Device DHW Page #

Valve Pump Valve Pump Valve Pump

A420-1 4 none none yes 4

A420-2 8 none none yes 5

A420-3 6 none none no 6

A421-1 6 4-way none no 7

A421-2 11 var. spd. none no 8

A421-3 12 3 3-way none no 10

A421-4 4 var.spd none no 12A422-1 3 3 4-way none yes 13

A422-2 4 6 4-way none yes 14

A422-3 4 4 var. spd. none yes 16

A422-4 4 4-way 4 4-way yes 17

A422-5 4 12 3-way none yes 18

A422-6 6 4 var. spd. none yes 20

A422-7 9 9 3-way none yes 22

A422-8 7 var. spd. 8 var. spd. yes 24

A422-9 4 var. spd. 6 4-way yes 26

A422-10 4 var. spd. none yes 27

A422-11 8 var. spd. 12 var. spd. yes 28

A422-12 12 3-way 12 3-way yes 30

ApplicationNumber Description Page #

A542-1 Operates 1 heat stage. 32

A543-1 Operates 2 heat stages. 33

A544-1 Operates 1 heat stage, 1 cooling stage and 1 fan. 34

A545-1 Operates 2 heat stages (both hydronic), 1 cooling stage and 1 fan. 35

A545-2 Operates 2 heat stages (hydronic and forced air), 1 cooling stage and 1 fan. 36

A546-1 Operates 2 heat stages (hydronic and forced air), 2 cooling stages, 1 fan and 1 ventilation fan. 37

A546-2 Operates 2 heat stages (hydronic and forced air), 2 cooling stages, 1 fan and 1 ventilation fan. 38

A546-3 Operates 2 heat stages (both hydronic), 2 cooling stages, and 1 two-speed fan. 39

Module Applications

Thermostat Applications


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Application Information

There are several mixingdevice options:1. Variable speed injection2. 4-way valve using

floating action3. 3-way valve using

floating action

Shows the maximum number ofthermostats that can connect tothe Zone Manager. Also describeswhich tekmarNet 4 bus thethermostats are connected to.

Line identifies which controloperates a mechanicalequipment group. Mechanical

equipment operatedby Zone Manager.

Control Combination

Sensors, pumps, valves andother devices are labelled forreference in a drawing legend.

Describes how theinternal tekmarNet 4buses are connected.

421 336S3

V1

P2 S2S1

for wiring see W421 brochure

421 Mix tN4bus internallyconnects to336 tN4 bus.

P1


see tN4 thermostatsection for selection

tNt tNt

tNt tNt

thermostats on Mix tN4 bus

When more than one set of controls is required, wiringbetween control modules is shown above the controlicons. Refer to the Wiring brochure of each control forspecific information about which terminals to connectwhen adding additional control modules.

422 335 - 336 440 335

Mix 2 tN4 busMix 1 tN4 bus

1.

2.

3.

The following applications illustrate common mechanical components used to provide HVAC system control. Refer to thetable at left to find an application that closely matches the system design required. It is possible to use a smaller numberof zones than shown. To add more zones, you may require additional Zone Managers. To add mix temperatures, you mayrequire additional Expansion Modules.

Thermostats models are only specific in the section featuring Thermostat applications. They are chosen based on thecooling, ventilation and schedule requirements of the system. Refer to the I001 Brochure for assistance with selection ofcontrol modules and thermostats.


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Concept Drawing: This 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 thesystem designer to determine the necessary components for and configuration of the particular system being designed, including additional equipment, isolation relays(for loads greater than the controls 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.

2005 A 001 - 05/05 4 of 40

Application A 420-1 336 + 420

420 336S2

S1

P1A1

422

for wiring see W420 brochure for wiring see W336 brochure

thermostats on Boiler tN4 bus

see tN4 thermostatsection

tNt tNt

tNt tNt

420 Boiler tN4bus internallyconnects to 336tN4 bus.

A1 = DHW AquastatP1 = DHW PumpS1 = Boiler Supply Sensor 071S2 = Outdoor Sensor 070

Legend:

System Description: The Boiler Reset Module 420 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating.Priority for the indirect domestic hot water tank is optional. Four tekmarNet 4 Thermostats operate four zone pumpsthrough the Zone Manager 336. A tekmarNet 4 boiler bus allows the thermostats to communicate to the 420 in orderto provide indoor feedback to ne tune the supply water temperature.


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Concept Drawing: This is only a concept drawing, not an engineered drawing. It is not intended to describe a complete system, nor any part icular system. It is up to thesystem designer to determine the necessary components for and configuration of the particular system being designed, including additional equipment, isolation relays(for loads greater than the controls 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.

5 of 40 2005 A 001 - 05/05

420 336S2

S1

P1A1

422


336

420 Boiler tN4bus internallyconnects to 336tN4 bus.


tN4 Boiler bus



tNt tNt

tNt tNt



tNt tNt

tNt tNt

Application A 420-2 2 x 336 + 420

A1 = DHW AquastatP1 = DHW PumpS1 = Boiler Supply Sensor 071S2 = Outdoor Sensor 070

Legend:

System Description: The Boiler Reset Module 420 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating.Priority for the indirect domestic hot water tank is optional. Eight tekmarNet 4 Thermostats operate eight zone pumpsthrough two Zone Manager 336s. A tekmarNet 4 boiler bus interconnects the thermostats to the two 336s and the 420.This allows the thermostats to communicate with the 420 in order to provide indoor feedback to ne tune the supplywater temperature.


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420 335S2

V1



P1 S1

for wiring see W335 brochurefor wiring see W420 brochure

420 Boiler tN4bus internallyconnects to335 tN4 bus.

tNt tNt

tNt tNt

tNt

tNt

P1 = Boiler PumpS1 = Boiler Supply Sensor 071S2 = Outdoor Sensor 070V1 = Pressure Differential Bypass Valve

Legend:

System Description: The Boiler Reset Module 420 operates a single on-off or modulating boiler to provide outdoorreset to the heating system. Six tekmarNet 4 Thermostats operate six zone valves through the Zone Manager 335.The 420s primary pump operates as a system pump for the six zone valves. A tekmarNet 4 boiler bus allows thethermostats to communicate to the 420 in order to provide indoor feedback to ne tune the supply water temperature.


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V1

421 335S3

V2

P2

M1

S2S1



P1



tNt tNt

tNt tNt

tNt

tNt


M1 = Actuating Motor 741P1 = Boiler PumpP2 = Mix System PumpS1 = Boiler Supply Sensor 071

S2 = Mix Supply Sensor 071S3 = Outdoor Sensor 070V1 = Mixing Valve 720 to 724V2 = Pressure Differential Bypass Valve

Legend:

System Description: The Mixing Reset Module 421 operates a single on-off boiler and a 4-way mixing valve to provideoutdoor reset to the heating system. The 4-way mixing valve allows the 421 to provide boiler protection from ue gascondensation. The 421s system pump output operates the boiler pump. Six tekmarNet 4 Thermostats operate six zonevalves through the Zone Manager 335. A tekmarNet 4 mix bus allows the thermostats to communicate to the 421 inorder to provide indoor feedback to ne tune the supply water temperature.


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2005 A 001 - 05/05 8 of 40

421 336S3

V1

P2 S2S1



326 336

P1


Mix tN4 Bus



tNt tNt

tNt tNt



tNt

tNt tNt



tNt tNt

tNt tNt

Application A 421-2 326 + 2 x 336 + 421

P1 = Boiler PumpP2 = Variable Speed Injection PumpS1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071

S3 = Outdoor Sensor 070V1 = Balancing or Globe Valve

Legend:

System Description: The Mixing Reset Module 421 operates a single on-off boiler and a variable speed injectionpump to provide outdoor reset to the heating system. The variable speed injection pump allows the 421 to provide boilerprotection from ue gas condensation. The 421s system pump output operates the boiler pump. Eleven tekmarNet 4Thermostats operate eleven zone pumps through two Zone Manager 336s and one Zone Expansion Module 326. AtekmarNet 4 mix bus interconnects the thermostats to the two 336s, the 326 and the 421. This allows the thermostatsto communicate with the 421 in order to provide indoor feedback to ne tune the supply water temperature.


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Application A 421-2 326 + 2 x 336 + 421


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421 335S3

S2S1 V1

M1



326 335

P1


Mix tN4 Bus



tNt tNt

tNt tNt

tNt

tNt



tNt

tNt tNt



tNt tNt

tNt tNt

tNt

tNt

Application A 421-3 326 + 2 x 335 + 421

M1 = Actuating Motor 741P1 = Boiler PumpP3 = Manifold 1 System PumpP4 = Manifold 2 System Pump

S1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071S3 = Outdoor Sensor 070V1 = Mixing Valve 710 to 714V2, V3 = Pressure Differential Bypass Valve

Legend:

System Description: The Mixing Reset Module 421 operates a single on-off boiler and 3-way mixing valve to provideoutdoor reset to the heating system. The 3-way mixing valve allows the 421 to provide boiler protection from ue gascondensation. The 421s system pump output operates the boiler pump. Three tekmarNet 4 Thermostats operate threezone pumps through a Zone Expansion Module 326. Twelve tekmarNet 4 Thermostats operate two groups of six zonevalves through two Zone Manager 335s. Each 335 uses its zone group pump output to operate a system pump in orderto provide ow through its group of zones. A tekmarNet 4 mix bus interconnects the thermostats to the two 335s, the326, and the 421. This allows the thermostats to communicate with the 421 in order to provide indoor feedback to ne

tune the supply water temperature.


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P3


V2


V3

P4

Application A 421-3 326 + 2 x 335 + 421


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421 336S3

V1

P2 S2S1



P1




tNt tNt

tNt tNt


P1 = Boiler PumpP2 = Variable Speed Injection PumpS1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071

S3 = Outdoor Sensor 070V1 = Balancing or Globe Valve

Legend:

System Description: The Mixing Reset Module 421 operates a single on-off boiler and a variable speed injectionpump to provide outdoor reset to the heating system. The variable speed injection pump allows the 421 to provide boilerprotection from ue gas condensation. The 421s system pump output operates the boiler pump. Four tekmarNet 4Thermostats operate four zone pumps through the Zone Manager 336. A tekmarNet 4 bus allows the thermostats tocommunicate to the 421 in order to provide indoor feedback to ne tune the supply water temperature.


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422 337S3

S1

A1P1

P2

V1

M1


S2


422 Boiler and Mix 1tN4 buses internallyconnect to 337 tN4buses.


thermostats on Mix 1 tN4 bus


tNt tNt tNt



tNt tNt tNt

P3

A

A B

B

V2


A1 = DHW AquastatM1 = Actuating Motor 741P1 = DHW PumpP2 = Primary Pump

P3 = Mix System PumpS1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071S3 = Outdoor Sensor 070V1 = Mixing Valve 720 to 724V2 = Pressure Differential Bypass Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating.Priority for the indirect domestic hot water tank is optional. The 422 operates a 4-way mixing valve to provide outdoorreset to the mix temperature heating system and boiler protection from ue gas condensation. Three tekmarNet 4Thermostats operate three boiler temperature zone valves through group B on a Dual Zone Manager 337. AtekmarNet 4 boiler bus interconnects the thermostats to the 337 and the 422. Three tekmarNet 4 Thermostats operatethree mix water temperature zone valves through group A on a Dual Zone Manager 337. A tekmarNet 4 mix 1 bus

interconnects the thermostats to the 337 and the 422. The tekmarNet 4 bus allows the thermostats to provide indoorfeedback to ne tune the supply water temperature.


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2005 A 001 - 05/05 14 of 40

Application A 422-2 335 + 336 + 422

422 335 - 336S3

S1

A1

P1


P3

V1

M1

S2


422 Mix 1 tN4bus internallyconnects to335 tN4 bus.

Boiler tN4 bus

P2



tNt tNt

tNt tNt



tNt tNt

tNt tNt

tNt

tNt



Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating. Prior-ity for the indirect domestic hot water tank is optional. The 422 also operates a 4-way mixing valve to provide outdoor resetto the mix temperature heating system and boiler protection from ue gas condensation. Four tekmarNet 4 Thermostatsoperate four boiler temperature zone pumps through a Zone Manager 336. A tekmarNet 4 boiler bus interconnects thethermostats to the 336 and the 422. Six tekmarNet 4 Thermostats operate six mix water temperature zone valves througha Zone Manager 335. A tekmarNet 4 mix 1 bus interconnects the thermostats to the 335 and the 422. The tekmarNet 4

bus allows the thermostats to provide indoor feedback to ne tune the supply water temperature.


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V2


Application A 422-2 335 + 336 + 422


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Application A 422-3 2 x 336 + 422

422 336 - 336S3

S1

P2

P1

V1


thermostats on Mix 1 tN4 bus thermostats on Boiler tN4 bus



P3 S2

for wiring seeW422 brochure


Boiler tN4 bus


tNt tNt

tNt tNt


tNt tNt

tNt tNt

A1

A1 = DHW AquastatP1 = Primary PumpP2 = DHW PumpP3 = Variable Speed Injection Pump

S1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071S3 = Outdoor Sensor 070V1 = Balancing or Globe Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating.Priority for the indirect domestic hot water tank is optional. The 422 also operates a variable speed injection pump toprovide outdoor reset to the mix temperature heating system and boiler protection from ue gas condensation. FourtekmarNet 4 Thermostats operate four boiler temperature zone pumps through a Zone Manager 336. A tekmarNet 4boiler bus interconnects the thermostats to the 336 and the 422. Four tekmarNet 4 Thermostats operate four mix watertemperature zone pumps through a Zone Manager 336. A tekmarNet 4 mix 1 bus interconnects the thermostats to the

336 and the 422. The tekmarNet 4 bus allows the thermostats to provide indoor feedback to ne tune the supply watertemperature.


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422 336 440 336S4

S1

A1P1








Mix 2 tN4 bus

V1

P2

V3

M1

S2

V4

M2

S3


tNt tNt

tNt tNt

Thermostats on Mix 2 tN4 bus

see tN4 thermostatApplication brochure

tNt tNt

tNt tNt

V2

Application A 422-4 2 x 336 + 422 + 440

A1 = DHW AquastatM1, M2 = Actuating Motor 741P1 = DHW PumpP2 = Primary Pump

S1 = Boiler Supply Sensor 071S2 = Mix 1 Supply Sensor 071S3 = Mix 2 Supply Sensor 071S4 = Outdoor Sensor 070V1, V2 = Globe ValveV3, V4 = Mixing Valve 720 to 724

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide loadreset to the two mix water systems and overrides the reset temperature to provide indirect domestic hot water tankheating. Priority for the indirect domestic hot water tank is optional. The 422 also operates a 4-way mixing valve toprovide outdoor reset to the mix 1 heating system and boiler protection from ue gas condensation. A Mixing ExpansionModule 440 operates a second 4-way mixing valve for the mix 2 heating system. Four tekmarNet 4 Thermostatsoperate four mix 1 temperature zone pumps through a Zone Manager 336. A tekmarNet 4 mix 1 bus interconnects thethermostats to the 336 and the 422. Four tekmarNet 4 Thermostats operate four mix 2 water temperature zone pumps

through a Zone Manager 336. A tekmarNet 4 mix 2 bus interconnects the thermostats to the 336 and the 422. ThetekmarNet 4 bus allows the thermostats to provide indoor feedback to ne tune the supply water temperature.


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2005 A 001 - 05/05 18 of 40

Application A 422-5 325 + 335 + 336 + 422

422 335 325 336S3

S1

A1

P1


S2



Boiler tN4 bus

Mix 1 tN4 bus

P2



tNt tNt

tNt tNt

tNt

tNt



tNt tNt

tNt tNt

tNt

tNt



tNt tNt

tNt tNt

V1

M1

P3



Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating.Priority for the indirect domestic hot water tank is optional. The 422 also operates a 3-way mixing valve to provide out-door reset to the mix temperature heating system and boiler protection from ue gas condensation. Four tekmarNet 4Thermostats operate four boiler temperature zone pumps through a Zone Manager 336. A tekmarNet 4 boiler businterconnects the thermostats to the 336 and the 422. Twelve tekmarNet 4 Thermostats operate twelve mix watertemperature zone valves through a Zone Manager 335 and a Zone Expansion Module 325. A tekmarNet 4 mix 1 bus

interconnects the thermostats to the 335, the 325, and the 422. The tekmarNet 4 bus allows the thermostats to provideindoor feedback to ne tune the supply water temperature.


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V2


Application A 422-5 325 + 335 + 336 + 422


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Application A 422-6 335 + 336 + 422

422 336 - 335S3

S1

A1

P2

P1



Boiler tN4 bus



tNt tNt

tNt tNt



tNt tNt

tNt tNt

tNt

tNt


S1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071S3 = Outdoor Sensor 070V1 = Balancing or Globe ValveV2 = Pressure Differential Bypass Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating.Priority for the indirect domestic hot water tank is optional. The 422 also operates a variable speed injection pump toprovide outdoor reset to the mix temperature heating system and boiler protection from ue gas condensation. SixtekmarNet 4 Thermostats operate six boiler temperature zone valves through a Zone Manager 335. A tekmarNet 4boiler bus interconnects the thermostats to the 335 and the 422. Four tekmarNet 4 Thermostats operate four mix watertemperature zone pumps through a Zone Manager 336. A tekmarNet 4 mix 1 bus interconnects the thermostats to the

336 and the 422. The tekmarNet 4 bus allows the thermostats to provide indoor feedback to ne tune the supply watertemperature.


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V1


P3 S2


V2

Application A 422-6 335 + 336 + 422


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422 337S3

S1

A1P1

P2


422 Boiler and Mix 1tN4 buses internallyconnects to 337 tN4buses.

Boiler tN4 bus

Mix 1 tN4 bus




tNt tNt tNt



tNt tNt tNt

BA

A B

Application A 422-7 325 + 335 + 337 + 422


P3 = Mix System PumpS1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071S3 = Outdoor Sensor 070V1 = Mixing Valve 710 to 714V2, V3 = Pressure Differential Bypass Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide outdoorreset to the heating system and overrides the reset temperature to provide indirect domestic hot water tank heating. Pri-ority for the indirect domestic hot water tank is optional. The 422 also operates a 3-way mixing valve to provide outdoorreset to the mix temperature heating system and boiler protection from ue gas condensation. Nine tekmarNet 4 Ther-mostats operate nine boiler temperature zone valves through group B on a Dual Zone Manager 337 and through aZone Expansion Module 325. A tekmarNet 4 boiler bus interconnects the thermostats to the 337, the 325, and the 422.

(Continued on next page)


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325 335

P3 S2

for wiring see W337 brochurefor wiring see W422 brochure for wiring see W335 brochure

V3



tNt tNt

tNt tNt

tNt

tNt



tNt tNt

tNt tNt

tNt

tNt

V1

M1

V2

Three tekmarNet 4 Thermostats operate three mix water temperature zone valves through group A on a Dual ZoneManager 337 and through a Zone Manager 335. A tekmarNet 4 mix 1 bus interconnects the thermostats to the 337,the 335, and the 422. The tekmarNet 4 bus allows the thermostats to provide indoor feedback to ne tune the supplywater temperature.

Application A 422-7 325 + 335 + 337 + 422


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Application A 422-8 326 + 3 x 336 + 422 + 440

422 336S4

S1

A1

P1





Mix 1 tN4 bus

Mix 2 tN4 bus

326 336





V2

V1

P2 S2

S3


V3

P3

V4

P4

tNt

tNt tNt

tNt tNt

tNt tNt

tNt tNt

tNt tNt

A1 = DHW AquastatP1 = DHW PumpP2 = Primary PumpP3, P4 = Variable Speed Injection Pump

S1 = Boiler Supply Sensor 071S2 = Mix 1 Supply Sensor 071S3 = Mix 2 Supply Sensor 071S4 = Outdoor Sensor 070V1, ..., V4 = Balancing or Globe Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide loadreset to the two mix water systems and overrides the reset temperature to provide indirect domestic hot water tankheating. Priority for the indirect domestic hot water tank is optional. The 422 also operates a variable speed injectionpump to provide outdoor reset to the mix 1 heating system and boiler protection from ue gas condensation. A Mix-ing Expansion Module 440 operates a second variable speed injection pump for the mix 2 heating system. SeventekmarNet 4 Thermostats operate seven mix 1 temperature zone pumps through a Zone Manager 336 and a ZoneExpansion Module 326. A tekmarNet 4 mix 1 bus interconnects the thermostats to the 336, the 326, and the 422.



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440 336








tNt tNt

tNt tNt

Eight tekmarNet 4 Thermostats operate eight mix 2 water temperature zone pumps through two Zone Manager 336s.A tekmarNet 4 mix 2 bus interconnects the thermostats to the 336s and the 422. The tekmarNet 4 bus allows the ther-mostats to provide indoor feedback to ne tune the supply water temperature.

Application A 422-8 326 + 3 x 336 + 422 + 440


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Application A 422-9 335 + 336 + 422 + 440

422 336 440 335S4

S1

A1

P1




Mix 2 tN4 bus

V2

V1

P2 S2

V4

M1

S3


V5


P4

V3

P3



tNt tNt

tNt tNt

tNt

tNt

Thermostats on Mix 1 tN4 bus

see tN4 thermostatApplication brochure

tNt tNt

tNt tNt


P3 = Variable Speed Injection PumpP4 = Mix 2 System PumpS1 = Boiler Supply Sensor 071S2 = Mix 1 Supply Sensor 071S3 = Mix 2 Supply Sensor 071S4 = Outdoor Sensor 070V1, ..., V3 = Balancing or Globe ValveV4 = Mixing Valve 720 to 724V5 = Pressure Differential Bypass Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide loadreset to the two mix water systems and overrides the reset temperature to provide indirect domestic hot water tankheating. Priority for the indirect domestic hot water tank is optional. The 422 also operates a variable speed injectionpump to provide outdoor reset to the mix 1 heating system and boiler protection from ue gas condensation. A MixingExpansion Module 440 operates a 4-way mixing valve for the mix 2 heating system. Four tekmarNet 4 Thermostatsoperate four mix 1 temperature zone pumps through a Zone Manager 336. A tekmarNet 4 mix 1 bus interconnects thethermostats to the 336, and the 422. Six tekmarNet 4 Thermostats operate six mix 2 water temperature zone valves

through a Zone Manager 335. A tekmarNet 4 mix 2 bus interconnects the thermostats to the 335 and the 422. ThetekmarNet 4 bus allows the thermostats to provide indoor feedback to ne tune the supply water temperature.


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422 336S3

S1

A1

P2

P1

V1


P3 S2





tNt tNt

tNt tNt


S1 = Boiler Supply Sensor 071S2 = Mix Supply Sensor 071S3 = Outdoor Sensor 070V1 = Balancing or Globe Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off boiler and a variable speed injectionpump to provide outdoor reset to the heating system. The variable speed injection pump allows the 422 to provideboiler protection from ue gas condensation. The 422 is able to heat an indirect domestic hot water tank. Priority forthe indirect domestic hot water tank is optional. Four tekmarNet4 Thermostats operate four zone pumps through theZone Manager 336. A tekmarNet4 bus allows the thermostats to communicate to the 422 in order to provide indoorfeedback to ne tune the supply water temperature.


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Application A 422-11 325 + 335 + 2 x 336 + 422 + 440

422 336S4

S1

P1

A1

V3

V4

V1


P4 P5

P3 S2

S3



Mix 1 tN4 bus

Mix 2 tN4 bus

P2

325 336



tNt tNt

tNt tNt

tNt

tNt



tNt tNt

tNt tNt



tNt tNt

tNt tNt

V2

A1 = DHW AquastatP1 = DHW PumpP2 = Primary PumpP3, P4 = Variable Speed Injection Pump

P5 = Mix 2 System PumpS1 = Boiler Supply Sensor 071S2 = Mix 1 Supply Sensor 071S3 = Mix 2 Supply Sensor 071S3 = Outdoor Sensor 070V1, ..., V4 = Balancing or Globe ValveV5 = Pressure Differential Bypass Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide loadreset to the two mix water systems and overrides the reset temperature to provide indirect domestic hot water tankheating. Priority for the indirect domestic hot water tank is optional. The 422 also operates a variable speed injectionpump to provide outdoor reset to the mix 1 heating system and boiler protection from ue gas condensation. A Mix-ing Expansion Module 440 operates a variable speed injection pump for the mix 2 heating system. Eight tekmarNet 4Thermostats operate eight mix 1 temperature zone pumps through a two Zone Manager 336s. A tekmarNet 4 mix 1bus interconnects the thermostats to the 336s, and the 422.



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440 335



V5



tNt tNt

tNt tNt

tNt

tNt

Twelve tekmarNet 4 Thermostats operate twelve mix 2 water temperature zone valves through a Zone Manager 335and a Zone Expansion Module 325. A tekmarNet 4 mix 2 bus interconnects the thermostats to the 335, the 325,and the 422. The tekmarNet 4 bus allows the thermostats to provide indoor feedback to ne tune the supply watertemperature.

Application A 422-11 325 + 335 + 2 x 336 + 422 + 440


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Application A 422-12 325 + 3 x 335 + 422 + 440

422 335S4

S1

P1

P2

A1

V2

V1


P4

P3 S2

S3



Mix 1 tN4 bus

Mix 2 tN4 bus

325 335



tNt tNt

tNt tNt

tNt

tNt



tNt tNt

tNt tNt

tNt

tNt



tNt tNt

tNt tNt

tNt

tNt

V3

M1

V4

M2

A1 = DHW AquastatM1, M2 = Actuating Motor 741P1 = DHW PumpP2 = Primary Pump

P3 = Mix 1 System PumpP4 = Mix 2 System PumpS1 = Boiler Supply Sensor 071S2 = Mix 1 Supply Sensor 071S3 = Mix 2 Supply Sensor 071S4 = Outdoor Sensor 070V1, V2 = Balancing or Globe ValveV3, V4 = Mixing Valve 710 to 714V5, V6 = Pressure Differential Bypass Valve

Legend:

System Description: The Universal Reset Module 422 operates a single on-off or modulating boiler to provide loadreset to the two mix water systems and overrides the reset temperature to provide indirect domestic hot water tankheating. Priority for the indirect domestic hot water tank is optional. The 422 also operates a 3-way mixing valve toprovide outdoor reset to the mix 1 heating system and boiler protection from ue gas condensation. A Mixing ExpansionModule 440 operates a 3-way mixing valve for the mix 2 heating system. Twelve tekmarNet 4 Thermostats operatetwelve mix 1 temperature zone valves through a Zone Manager 335 and a Zone Expansion Module 325.



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440 335





V6


V5


tNt tNt

tNt tNt

tNt

tNt

A tekmarNet 4 mix 1 bus interconnects the thermostats to the 335, the 325, and the 422. Twelve tekmarNet 4Thermostats operate twelve mix 2 water temperature zone valves through two Zone Manager 335s. A tekmarNet 4 mix2 bus interconnects the thermostats to the 335s and the 422. The tekmarNet 4 bus allows the thermostats to provideindoor feedback to ne tune the supply water temperature.

Application A 422-12 325 + 3 x 335 + 422 + 440


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OptionalZone

Manager

Operated by tN4System Control

Z1

542

S1

Application A 542-1

S1 = Slab Sensor 079Z1 = Zone Valve

Legend:

System Description: The tekmarNet 4 Thermostat 541 or 542 operates a single heating zone. In hydronic heatingsystems, the 541 or 542 can connect to a Zone Manager, which provides power and a tekmarNet 4 bus connection.In non-hydronic applications, the 541 or 542 can be directly connected to the heating equipment. The 541 providesa single auxiliary sensor input, while the 542 provides two auxiliary sensor inputs. The auxiliary sensors allows theconnection of an optional oor sensor, indoor sensor or outdoor sensor.


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OptionalZone

Manager

543


S1

Z1Z2

Application A 543-1

S1 = Slab Sensor 079Z1 = Zone ValveZ2 = Zone Pump

Legend:

System Description: The tekmarNet 4 Thermostat 543 operates two heating stages for a single zone. The two heatingstages can both be hydronic, or can be mixture of hydronic and non-hydronic. In hydronic heating systems, the rstheat stage and the tekmarNet 4 bus can connect to a Zone Manager, while the second heat stage can connect to thesame or different Zone Manager. In non-hydronic heating systems, the rst heat stage or second heat stage contactcan directly connect to the heating equipment. The 543 provides two auxiliary sensor inputs to allow the connection ofan optional oor sensor, indoor sensor or outdoor sensor.


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OptionalZone

Manager

544

S1C1F1

S2


Z1

Application A 544-1

C1 = Cooling SystemF1 = FanS1 = Duct Sensor 083S2 = Slab Sensor 079

Z1 = Zone Valve

Legend:

System Description: The tekmarNet 4 Thermostat 544 operates a single heating zone, a single cooling system,and a single fan. In hydronic heating systems, the 544 can connect to a Zone Manager, which provides power and atekmarNet 4 bus connection. In non-hydronic applications, the 544 can be directly connected to the heating equipment.The 544 can connect directly to the cooling and the fan equipment. The 544 provides two auxiliary sensor inputs toallow the connection of an optional oor sensor, indoor sensor or outdoor sensor.


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OptionalZone

Manager

545

S1C1F1


S2

Z1Z2

Application A 545-1

C1 = Cooling SystemF1 = FanS1 = Duct Sensor 083S2 = Slab Sensor 079

Z1 = Zone ValveZ2 = Zone Pump

Legend:

System Description: The tekmarNet 4 Thermostat 545 operates two hydronic heating stages, a single cooling system,and a single fan. The rst heat stage and tekmarNet 4 bus can connect to a Zone Manager. The second heat stagecan connect to the same or different Zone Manager. The 545 directly connects to the cooling and fan equipment. The545 can be assigned as a cooling group master and operate the cooling system on behalf of a group of tekmarNet 4Thermostats assigned as members of the cooling group. The 545 provides two auxiliary sensor inputs to allow theconnection of an optional oor sensor, indoor sensor, outdoor sensor, coil sensor, or duct sensor. The optional ductsensor can be used to provide freeze protection of the cooling coil.


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OptionalZone

Manager

S2


Z1

F1 C1 H2 S1

545

Application A 545-2

C1 = Cooling SystemF1 = FanH2 = Forced Air Heating SystemS1 = Duct Sensor 083

S2 = Slab Sensor 079Z1 = Zone Valve

Legend:

System Description: The tekmarNet 4 Thermostat 545 operates two heating stages, a single cooling system, anda single fan. The rst heat stage is hydronic and can connect to a Zone Manager together with the tekmarNet 4 bus.The second heat stage connects to a forced air heating system. The 545 directly connects to the cooling and fanequipment. The 545 can be assigned as a cooling group master and operate the cooling system on behalf of a group oftekmarNet 4 Thermostats assigned as members of the cooling group. The 545 provides two auxiliary sensor inputs toallow the connection of an optional oor sensor, indoor sensor, outdoor sensor, coil sensor, or duct sensor. The optionalduct sensor can be used to provide freeze protection of the heating and cooling coil.


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OptionalZone

Manager


S1

Z1

S2

F2

F1 C1 S3H2

5 46

Application A 546-1

C1 = Two-Stage Cooling SystemF1 = FanF2 = HRV / ERV FanH2 = Forced Air Heating System

S1 = Outdoor Sensor 070S2 = Slab Sensor 079S3 = Duct Sensor 083Z1 = Zone Valve

Legend:

System Description: The tekmarNet 4 Thermostat 546 operates two heating stages, a two stage cooling system, a fan, and aheat recovery ventilation unit. The rst stage is hydronic heating, and can connect to a Zone Manager with the tekmarNet 4 bus.The second stage is forced air heating and connects directly with the forced air heating system. The 546 directly connects to thecooling and fan equipment. The 546 can be assigned as a cooling group master and operate the cooling system on behalf of agroup of tekmarNet 4 Thermostats assigned as members of the cooling group. The 546 operates the main fan when the secondstage heat or cooling systems are operating. The 546 operates a heat recovery ventilation unit fan and operates the main fanat the same time due to the primary-secondary ducting. The 546 provides three auxiliary sensor inputs to allow the connection

of an optional oor sensor, indoor sensor, outdoor sensor, coil sensor, or duct sensor. The optional duct sensor can be used toprovide freeze protection of the heating and cooling coil.


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546

OptionalZone

Manager


not for secondstage heating

F2

F1 C1

S3

S1

S2

Z1Z2

Application A 546-2

C1 = Two-Stage Cooling SystemF1 = FanF2 = HRV / ERV FanS1 = Outdoor Sensor 070

S2 = Slab Sensor 079S3 = Coil Sensor 071Z1 = Zone ValveZ2 = Zone Pump

Legend:

System Description: The tekmarNet 4 Thermostat 546 operates two heating stages, a two stage cooling system, a fan,and a heat recovery ventilation unit. The rst stage is hydronic heating, and can connect to a Zone Manager together with thetekmarNet 4 bus. The second stage is a hydronic fan coil unit and can connect to a different Zone Manager. The 546 directlyconnects to the cooling and fan equipment. The 546 can be assigned as a cooling group master and operate the coolingsystem on behalf of a group of tekmarNet 4 Thermostats assigned as members of the cooling group. The 546 operates themain fan at the same time the second stage heat or cooling systems are operating. The 546 operates a heat recovery ven-tilation unit that is ducted separately from the heating and cooling system and is dedicated for ventilation. The 546 provides

three auxiliary sensor inputs to allow the connection of an optional oor sensor, indoor sensor, outdoor sensor, coil sensor,or duct sensor. The optional duct sensor can be used to provide freeze protection of the heating and cooling coil.


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OptionalZone

Manager


S1

S2

Z1Z2

F1 C1 S3

546

Application A 546-3

C1 = Two-Stage CoolingF1 = Two-Stage FanS1 = Outdoor Sensor 070S2 = Slab Sensor 079

S3 = Duct Sensor 083Z1 = Zone ValveZ2 = Zone Pump

Legend:

System Description: The tekmarNet 4 Thermostat 546 operates two heating stages, a two stage cooling system, and atwo stage fan. The rst stage is hydronic heating, and can connect to a Zone Manager together with the tekmarNet 4 bus.The second stage is hydronic heating and can connect to the same or different Zone Manager. The 546 directly connectsto the cooling and fan equipment. The 546 can be assigned as a cooling group master and operate the cooling system onbehalf of a group of tekmarNet 4 Thermostats assigned as members of the cooling group. The 546 operates the main fan atthe same time the cooling system is operating. The fan operates at low speed for the rst stage of cooling and at high speedfor the second stage of cooling. Ventilation is provided by operating the fan at low speed after the cooling has shut off. The

546 provides three auxiliary sensor inputs to allow the connection of an optional oor sensor, indoor sensor, outdoor sensor,coil sensor, or duct sensor. The optional duct sensor can be used to provide freeze protection of the cooling coil.


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Documents

App of 4 Way Valve