Watts Switching Relay 303P Series User Manual Download

Page: 1 / 12

Switching Relay 302P

Installation Manual

Switching Relay 302P

Two Zones with Priority

H3024A

Power

Priority

Zone 1

Zone 2

RoomResponse

The Switching Relay 302P connects up to two thermostats and operates circulators to provide heating to a zoned
hydronic heating system.

• RoomResponse

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

RoomResponse

•  Four ground screws
•  Top, bottom and back conduit knockouts
•  Fuses protect transformers and pumps
•  Two spare fuses included
•  CSA approved

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 ...

Search results

Summary of Contents for Switching Relay 303P Series

Reviews:

Related manuals for Switching Relay 303P Series

Brands by name

Popular brands

Watts Switching Relay 303P Series, Installation Manual

Search results

Summary of Contents for Switching Relay 303P Series

Reviews:

Related manuals for Switching Relay 303P Series

Brands by name

Popular brands