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4. Use the tekmar control to enable the Primary and Sec-

ondary pumps P2 and P3 relays, and allow remaining

air to circulate through to vents. See previous page for

menu use details.

5. Allow pumps to run until air has been vented. Do not

turn off water supply.

6. Turn off pumps and ensure system is filled to 15 psi.
7. Close valve D2 and turn off water supply. Disconnect

supply hose.

8. Manually enable pumps P2 and P3 again, and adjust

valves V10 and V9 to achieve desired flow.

9. Ensure caps are placed tightly on drain valves and

return the valves to open positions.

10. Return M1 valve actuator to position 0 and the mode

selection switch to AUTO.

11. Close valve D1 and turn off water supply. Disconnect

supply hose.

12. Ensure caps are placed tightly on drain valves and

return the valves to open positions.

Fill Primary (boiler) Side

1. Close V9
2. Open V10, V5, V6, V7, V8
3. Attach fill hose to D2 and begin filling

a. Water will push air slugs into main air vent A2
b. Fill until air stops venting from A2 and pressurize to

15 psi

Adjusting System Pressure

Snow melting systems are typically subjected to

temperatures well below freezing. As the anti-freeze

solution decreases in temperature, its volume will also

decrease. This will result in lower system pressure

during the winter months when the system is not

operating.

The minimum required operating pressure for the

ProMelt panel is 5 PSI.

If the pressure falls below

5 PSI, additional anti-freeze solution will need to be

pumped into the system to maintain the minimum

pressure in the coldest conditions. When adding anti-

freeze solution in cold conditions, do not exceed

10 PSI!

System Commissioning and Maintenance

V10

Due to the large temperature swing in the system fluid

(110 degrees F. or more from cold start to full output),

typical operating pressure will range between 5 PSI

(required minimum) to 25 PSI (recommended maximum).

In excessive pressure conditions, the pressure relief

safety valve will begin to open at 30 PSI. If this condition

occurs, contact Watts Radiant technical support for

assistance.

Содержание ProMelt 150

Страница 1: ...Installation Operation and Maintenance Manual ProMelt Hydronic Panels Pre Configured Snow Melt Solutions ...

Страница 2: ...s and other accessories are also available from www watts com radiant Replacement manuals for the snow melting controls and sensors are available from tekmarControls com This pictorial alerts you to electricity electrocution and shock hazards This symbol identifies hazards which if not avoided could result in minor or moderate injury This symbol identifies hazards which if not avoided could result...

Страница 3: ...nd in the corresponding tekmar control manual WARNING CAUTION NOTICE N OT FOR P O TA B L E U S E lb WARNING CAUTION NOTICE N OT FOR P O TA B L E U S E lb WARNING CAUTION NOTICE N OT FOR P O TA B L E U S E lb N OT FOR P O TA B L E U S E WARNING CAUTION NOTICE N OT FOR P O TA B L E U S E lb Care should be taken when lifting a ProMelt panel Each panel can weigh in excess of 100 pounds and can be unev...

Страница 4: ...s been discolored If the indicator has turned red the ProMelt panel has experienced excessive shock and should be reported to the freight carrier Any type of damage can result in improper opera tion both mechanically and electrically Do not attempt to fix damaged areas without obtaining written instructions from Watts Radiant on how the corrections are to be performed Receiving Product Description...

Страница 5: ...iler From Boiler To Zone From Zone A C D D B E G F To Boiler From Boiler To Zone From Zone A A J C C B B D E F F H G I I ProMelt Panels Load MBH Pipe Size Max GPM Circulator Type Ph Volt Amps HP 150 1 9 0013 1 120 2 1 6 250 1 1 4 15 Panel Model Snow Melt Area Max BTUs ft2 Pipe Size Total Length 150 700 ft2 150 1 50ft 250 1200 ft2 150 1 1 4 50ft 399 2000 ft2 150 1 1 2 50ft 399 MBH ProMelt Panels A ...

Страница 6: ... Cleat Brackets Circulators Each Cleat is designed to be used with a single ProMelt panel system and provides an anchor point to at least two studs three studs for HX panels Check packaging for Cleat when removing panel from packing material When selecting a ProMelt panel make sure the included circulator is capable of handling the system flow and head pressure requirements ...

Страница 7: ...fted and secured in place 1 Locate where the top of the panel needs to be This will correspond to the top of the Cleat Bracket 2 Mount the Cleat Bracket using two 1 2 x 3 1 2 min long lag bolts with the smaller 150 and 250 MBH Pro Melt panels and four with the larger 399 MBH panels Ensure the bracket is level on the wall and crosses at least two studs three for HX Pre drill each bolt location with...

Страница 8: ...ront of the ProMelt panel With assistance lift the ProMelt panel so the top edge sits on the Cleat Bracket Make sure the mounting holes on the brackets align with the holes on the ProMelt panel Secure the back panel to the cleat with the use of a 1 2 bolt and washer 5 Confirm the panel is level and fully engaged NOTICE P O TA B L E U S E lb ...

Страница 9: ... will be necessary to install in sections The panel system will come fully assembled in the shipping crate Expansion tanks will be shipped loose in the crate First disconnect the heat exchanger before attempting to lift the assembly Failure to do so may cause the pan els to warp deforming the connecting copper Lift and mount the primary side followed by the second ary Center both panels on the Cle...

Страница 10: ...rs and socket please refer to installation manuals included with the sensor packaging NOTICE ALL CONDUIT AND RELATED ACCESSORIES MUST BE INSTALLED PRIOR TO SENSOR INSTALL Use five conductor 18 AWG LVT cable for the 090 or 095 sensor and two conductor 18 AWG LVT cable for the 070 air sensor Either cable can be run up to 500 feet without impacting performance Contact the factory if a longer distance...

Страница 11: ...month before the winter season This process will help ensure circulators and other components continue to function as intended This section covers general commissioning steps and procedures Refer to the specific tekmar control manual included with the ProMelt panel for complete details on system set up and operation parameters Follow all boiler manufacturer recommendations for set up wiring and op...

Страница 12: ...int of a liquid by measur ing the angle through which light is bent the angle of refraction as it passes through the liquid This angle is a direct correlation to its freeze point and should be checked before and after the glycol is added to the system Check a sample mixture of one cup glycol and one cup water Test this solution with the refractome ter to see what the system freeze protection will ...

Страница 13: ...V3 V1 A1 V2 V4 D1 D2 V3 All configurations must include manifold vent purge assemblies Failure to do so may result in complications purging NOTICE 10 Slowly open purge valve at manifold until water air begin flowing Remain at this position until flow is water only 11 Close manifold purge valve and D2 and replace cap s Air remains in return line from manifold 12 Open V4 13 Close D2 and disconnect f...

Страница 14: ...lect Hand Duration Enter the desired run time 1 Home Screen Select Settings 2 Select Override 3 Select Manual Override 4 Select Hand type and then Back 5 Select System Pump 6 Select On then Back 7 Arrow down to Select Hand Duration to modify run times 16 Allow pumps to run until air has been vented 17 Turn off pumps and fill system to 15 psi This may need to be done several times as air will vent ...

Страница 15: ... vented Do not turn off water supply 9 Turn off pumps and fill system to 15 psi System Commissioning and Maintenance Fill Secondary zone Side 1 Open valves V1 V2 V3 V4 2 Set mix valve actuator M1 to MANUAL and slowly turn to position 5 3 Open black cap on top of air vent A1 two full turns 4 Attach fill hose to D1 and begin filling Water will push air slugs into main air vent A1 through return line...

Страница 16: ...n air vent A2 b Fill until air stops venting from A2 and pressurize to 15 psi Adjusting System Pressure Snow melting systems are typically subjected to temperatures well below freezing As the anti freeze solution decreases in temperature its volume will also decrease This will result in lower system pressure during the winter months when the system is not operating The minimum required operating p...

Страница 17: ... c Check system pressure is at least 12psi d Check the snow melt sensor connection at the relay box verifying all operational functions are set properly see manufacturer s instructions e Verify there is flow Is the system air locked Is the circulator running Is 120V power present at circulator s tekmar control is not operating correctly a Verify circuit breaker is not tripped and 120VAC power is p...

Страница 18: ...20 19 WiFi Snow Melting Control 670 Boiler Mixing Electric Date Code H2055A 1 kΩ max 1 kΩ max Opn 3 Var 2 Mix V mA 1 Pwr 4 Mix Cls 5 Blu 8 Yel 9 Brn 10 Slab Man 11 Melt C 12 Blk 7 Com Red 6 Boiler 1 ModBoiler 21 Stage 1 Boiler 1 Stage 2 Heat Relay System Pump 22 23 24 25 Do Not Apply Power Mix 15 Sup Com 16 Boil 17 Out 18 Com 14 tN4 13 28 27 26 Power 29 L 30 N Snow Sensor 095 Field Wired Appendix ...

Страница 19: ... Ice Sensor 2 Do Not Apply Power 41 42 43 Pwr Floating Action Mixing Cls Opn Boiler 39 40 Pump Pump 29 30 Pump Primary System 31 32 44 45 Power In N L BACnet MSTP Modbus MSTP 16 17 18 Gnd B A RS 485 20V 3 dc 5V dc Out 0 10V 4 20mA In Out Flow Sensor Pressure Sensor In Vdc 6 Gnd 7 mA 4 5 Com 8 Boil Sup Out 9 Boil Ret 10 Com Com 11 Sys Sup 12 Sys Ret 13 14 15 1 Analog Mixing 2 Temperature Sensors Di...

Страница 20: ...LITY AND FITNESS FOR A PARTICULAR PURPOSE 8 The remedy described above in this warranty shall constitute the sole and exclusive remedy for breach of warranty and apart from that remedy Watts shall not be responsible under any legal theory for any incidental special or consequential damages including without limitation lost profits or the cost of repairing or replacing other property which is damag...

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