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Limited  Warranty 

The  liability  of  tekmar  under  this  warranty  is 

limited. The Purchaser, by taking receipt of any tekmar product 

(“Product”), acknowledges the terms of the Limited Warranty in 

effect at the time of such Product sale and acknowledges that it 

has read and understands same.

The tekmar Limited Warranty to the Purchaser on the Products sold 

hereunder  is  a  manufacturer’s  pass-through  warranty  which  the 

Purchaser  is  authorized  to  pass  through  to  its  customers.  Under 

the  Limited  Warranty,  each  tekmar  Product  is  warranted  against 

defects  in  workmanship  and  materials  if  the  Product  is  installed 

and used in compliance with tekmar’s instructions, ordinary wear 

and tear excepted. The pass-through warranty period is for a period 

of twenty-four (24) months from the production date if the Product 

is not installed during that period, or twelve (12) months from the 

documented date of installation if installed within twenty-four (24) 

months from the production date.

The liability of tekmar under the Limited Warranty shall be limited to, at 

tekmar’s sole discretion: the cost of parts and labor provided by tekmar 

to  repair  defects  in  materials  and / or  workmanship  of  the  defective 

product;  or  to  the  exchange  of  the  defective  product  for  a  warranty 

replacement product; or to the granting of credit limited to the original 

cost of the defective product, and such repair, exchange or credit shall 

be  the  sole  remedy  available  from  tekmar,  and,  without  limiting  the 

foregoing  in  any  way,  tekmar  is  not  responsible,  in  contract,  tort  or 

strict product liability, for any other losses, costs, expenses, inconve-

niences, or damages, whether direct, indirect, special, secondary, inci-

dental or consequential, arising from ownership or use of the product, 

or from defects in workmanship or materials, including any liability for 

fundamental breach of contract.

The  pass-through  Limited  Warranty  applies  only  to  those  defective 

Products returned to tekmar during the warranty period. This Limited 

Warranty does not cover the cost of the parts or labor to remove or 

transport the defective Product, or to reinstall the repaired or replace-

ment Product, all such costs and expenses being subject to Purchas-

er’s agreement and warranty with its customers.

Any  representations  or  warranties  about  the  Products  made  by  Pur-

chaser  to  its  customers  which  are  different  from  or  in  excess  of  the 

tekmar  Limited  Warranty  are  the  Purchaser’s  sole  responsibility  and 

obligation.  Purchaser  shall  indemnify  and  hold  tekmar  harmless  from 

and against any and all claims, liabilities and damages of any kind or 

nature which arise out of or are related to any such representations or 

warranties by Purchaser to its customers.

The pass-through Limited Warranty does not apply if the returned Prod-

uct  has  been  damaged  by  negligence  by  persons  other  than  tekmar, 

accident, fire, Act of God, abuse or misuse; or has been damaged by 

modifications, alterations or attachments made subsequent to purchase 

which have not been authorized by tekmar; or if the Product was not 

installed  in  compliance  with  tekmar’s  instructions  and / or  the  local 

codes and ordinances; or if due to defective installation of the Product; 

or if the Product was not used in compliance with tekmar’s instructions.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS 

OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO 

CONTRACTUALLY  EXCLUDE,  INCLUDING,  WITHOUT  LIMITATION, 

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 

A PARTICULAR PURPOSE, DURABILITY OR DESCRIPTION OF THE 

PRODUCT, ITS NON-INFRINGEMENT OF ANY RELEVANT PATENTS 

OR  TRADEMARKS,  AND  ITS  COMPLIANCE  WITH  OR  NON-VIOLA-

TION OF ANY APPLICABLE ENVIRONMENTAL, HEALTH OR SAFETY 

LEGISLATION;  THE  TERM  OF  ANY  OTHER  WARRANTY  NOT 

HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT 

SHALL NOT EXTEND BEYOND TWENTY-FOUR (24) MONTHS FROM 

THE PRODUCTION DATE, TO THE EXTENT THAT SUCH LIMITATION 

IS ALLOWED BY THE GOVERNING LAW. 

Product Warranty Return Procedure

 All Products that are believed 

to have defects in workmanship or materials must be returned, together 

with a written description of the defect, to the tekmar Representative 

assigned  to  the  territory  in  which  such  Product  is  located.  If  tekmar 

receives an inquiry from someone other than a tekmar Representative, 

including an inquiry from Purchaser (if not a tekmar Representative) or 

Purchaser’s customers, regarding a potential warranty claim, tekmar’s 

sole obligation shall be to provide the address and other contact infor-

mation regarding the appropriate Representative.

Warranty

302P_D - 09/19

 

 

© 2019 tekmar

Tel: 1-800-438-3903 • Fax: (250) 984-0815

 tekmarControls.com

All specifications are subject to change without notice

Need help? Go to our website or contact us.

tekmarControls.com | tekmar.customerservice@wattswater.com | 1-800-438-3903  

Summary of Contents for Switching Relay 303P Series

Page 1: ...ting to a zoned hydronic heating system RoomResponseTM signal Compatible with all low voltage thermostats Unlimited zone expansion Zone priority Priority override Pump exercising Post purge Away signal shared between tekmar thermostats Features LED for each zone priority end switch and RoomResponseTM Four ground screws Top bottom and back conduit knockouts Fuses protect transformers and pumps Two ...

Page 2: ... if not avoided could result in minor or moderate injury This symbol identifies practices actions or failure to act which could result in property damage or damage to the equipment Read manual and all product labels BEFORE using the equipment Do not use unless you know the safe and proper operation of this equipment Keep this manual available for easy access by all users Replacement manuals are av...

Page 3: ...screwdriver Needle nose pliers Wire stripper 18 AWG LVT solid wire low voltage connections 14 AWG solid wire line voltage connections Four 1 8 1 wood screws 1 Switching Relay 302P 2 Spare fuses located in cover Installation Manual 302P_D Keep the control dry Avoid potential leakage onto the control Maintain relative humidity less than 90 in a non condensing environment Avoid exposure to extreme te...

Page 4: ...cable Away C R Rh W R W 70 FUSE 2 FUSE 7 FUSE 8 FUSE 3 FUSE 4 FUSE 5 FUSE 6 70 80 90 60 50 100 MOD MAX MASTER MEMBER OFF OFF OFF 4 20 mA T STAT 1 PRIORITY 0N EXERCISING ON POST PURGE ON MOD BOILER 0 10V RESERVED FUSE 1 120 VAC POWER MOD X X tN4 POWER ROOM RESPONSE T1 T2 T3 T4 T5 T6 A DHW C R W BOILER T STAT 1 T STAT 2 T STAT 3 PRIORITY PUMP 1 PUMP 2 PUMP 3 PUMP 4 PUMP 5 PUMP 6 L N L N L N L N L N ...

Page 5: ...ot required Away C R Rh W 70 FUSE 2 FUSE 7 FUSE 8 FUSE 3 FUSE 4 FUSE 5 FUSE 6 70 80 90 60 50 100 MOD MAX MASTER MEMBER OFF OFF OFF 4 20 mA T STAT 1 PRIORITY 0N EXERCISING ON POST PURGE ON MOD BOILER 0 10V RESERVED FUSE 1 120 VAC POWER MOD X X tN4 POWER ROOM RESPONSE T1 T2 T3 T4 T5 T6 A DHW C R W BOILER T STAT 1 T STAT 2 T STAT 3 PRIORITY PUMP 1 PUMP 2 PUMP 3 PUMP 4 PUMP 5 PUMP 6 L N L N L N L N L ...

Page 6: ...10V RESERVED FUSE 1 120 VAC POWER MOD X X tN4 POWER ROOM RESPONSE T1 T2 T3 T4 T5 T6 A DHW C R W BOILER T STAT 1 T STAT 2 T STAT 3 PRIORITY PUMP 1 PUMP 2 PUMP 3 PUMP 4 PUMP 5 PUMP 6 L N L N L N L N L N L N L N tN4 A C R W tN4 A C R W T STAT 4 tN4 A C R W T STAT 5 tN4 A C R W T STAT 6 EXPANSION tN4 A C R W tN4 A B C D E FUSE 2 FUSE 7 FUSE 8 FUSE 3 FUSE 4 FUSE 5 FUSE 6 70 80 90 60 50 100 MOD MAX MAST...

Page 7: ... Switching Relay set to Master When using multiple Switching Relays and or Zone Valve Controls set one control to Master and set all other controls to Member The boiler end switch XX only closes when the DIP switch is set to Master and does not close when set to Member T Stat 1 Priority DIP Switch When T Stat 1 is calling for heat by closing the R and W terminals 115 V ac is applied to the zone 1 ...

Page 8: ...e Master Mod Max Max Voltage Max mA 50 5 12 60 6 13 6 70 7 15 2 80 8 16 8 90 9 18 4 100 10 20 FUSE 6 70 80 90 60 50 100 MOD MAX Mod Max dial set to 100 in the illustration Boiler Make Model Required Adapter Supplied by boiler manufacturer 0 10 V dc 4 20 mA DIP Switch Mod Max Dial for Boiler Design Temperature 120 F 140 F 160 F 180 F Aerco AM series Not required 0 10 V 50 65 80 100 Bosch Greenstar ...

Page 9: ... Change Energy Management setting Central Heat Modulation Source to 4 20 mA Change Energy Management setting Central Heat 4 20 mA Setup 4 mA Water Temperature to 80 F 26 5 C 9 10 22 23 5 6 16 17 2 U 1 X X T T 1 2 9 10 No changes to the boiler are required On the V10 controller Set Load 1 to External Control Change Max Control 9 5 Vdc to 190 F 88 C Change Min Control 2 1 Vdc to 32 F 0 C IBC V10 Con...

Page 10: ...etpoint source to 4 20mA Enter boiler password Set Parameter Setpoint source to 4 20mA Lochinvar Knight Lochinvar FTXL NTI Trinity LX Riverside HeatStation NTI Trinity Fire Tube 302P 302P 302P 302P 302P Sensor I O 24Vac I O X X W R 1 2 37 38 X X W R 21 22 35 36 X X CH1 R 3 5 11 12 X X CH1 R 3 5 4 5 8 EMS 9 Laars Mascot FT Peerless Pinnacle Terminal Strip Peerless Pinnacle Control Board Peerless PF...

Page 11: ...P 302P 302P 1 4 1 2 5 6 Connect to the Viessmann Extension Module EA1 Plug 0 10V Switching Relay 302P Two Zones with Priority Literature Submittal 302P_C Installation Manual 302P_D Job Record 302P_J Packaged weight 5 0 lb 2250 g Dimensions 8 3 16 H x 10 11 16 W x 2 3 8 D 208 x 271 x 60 mm Enclosure Cover ABS plastic Base galvanized steel NEMA type 1 Approvals CSA C US RoHS Ambient conditions Indoo...

Page 12: ... made by Pur chaser to its customers which are different from or in excess of the tekmar Limited Warranty are the Purchaser s sole responsibility and obligation Purchaser shall indemnify and hold tekmar harmless from and against any and all claims liabilities and damages of any kind or nature which arise out of or are related to any such representations or warranties by Purchaser to its customers ...

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