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Powrmatic NVx Series User, Installation And Servicing Instructions Download Page 35

ITEM USAGE 

PART #

MFC 

10-50 145035208

MFC 

60-90, 90S 

145035204

MFC 

120/140 141378715

  
Ignition Electrode 

10-75 

142423002

Ignition Electrode 

90S, 90-140 

142423004

Rectification Electrode 

All 

142423003

Burner 

10-75 142400240

Burner 

90S, 90-140 

142400241

Fan & Limit Thermostat 

All 143000306

Control Box 

All 

145030844

Hi/Lo Governor Head 

10-140 -/HL 

142466402

Modulating Governor Head 

10-140 -/MOD 

142466403

Modulating Driver 

10-140 -/MOD 

142400303

Exhaust Fan 

10-50 

140210496 

As an assembly c/w mounting brackets 

10-50  NVX1050EXH

Exhaust Fan 

60/75 

140201505 

As an assembly c/w mounting brackets 

60/75  NVX6075EXH

Exhaust Fan 

90S, 90-140 

140201506

As an assembly c/w mounting brackets 

90S, 90-140  NVX90140EXH

Pressure Switch 

All 

146522174

 
Contactor 120-140, All -/C 

143000600

Contactor 

60-90, 90S, All -/C 

143000601

Main air fan – Axial: NVx F 

10 

140232001

           

15 140232002/Z/15

         

20 140232003/Z/15

          

25/30 140232004/Z/15

          

35/40 140232005/Z/15

 

50/90 140232006/Z/15

 

60/75/120/140 140232007/Z/15

 

90S 140232011

Main air fan – Axial: NVx V 

10/15 140232002/Z/15

         

20 140232010/Z/15

          

30/40 

140232009/Z

 

50/90 140232018

 

60/75/120/140 140232017

 

90S N/A

Only original specified parts may be fitted as service replacements and all items are available from 

the Powrmatic Ltd Spares Department.  Please refer to Powrmatic Ltd for any parts not shown in the 

listing.  Powrmatic Ltd must also be consulted  before parts  other  than  those  specified or 

recommended  in  the  servicing instructions are replaced.

 

NVX Range  Users, Instructions & Service Instructions Issue 5.5 August 2015                                                                                  Page 35

Summary of Contents for NVx Series

Page 1: ...nstallation and Servicing Instructions Brahma Control MKIII LIB GM44 GB IE H E AT I N G V E NT I L AT I O N A I R C O N D IT I O N I N G WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT Reset from Loc...

Page 2: ...g company 4 The heater has been used in accordance with the manufactures instructions 5 The correct specification fuel has been used 6 No unauthorised repairs of modifications have been made 7 Powrmat...

Page 3: ...contact our Technical Support Team by calling 01460 53535 Users Installation and Servicing Instructions CONTENTS Title Section Contents Page User Instructions 4 Pre Installation 1 1 Introduction 5 1 2...

Page 4: ...controls e g Time clock room thermostat etc call for heat The internal exhaust fan will run and when sufficient combustion airflow is proved by the air pressure switch the ignition spark will be gener...

Page 5: ...or industrial premises All variants with the exception of NVx EA units are for internal use only NVx heaters feature a closed combustion circuit and have an internal exhaust fan mounted downstream of...

Page 6: ...from drop rods via purpose designed M10 suspension fixing points on the heater ii attached to our optional wall support brackets or iii positioned on a level non combus tible base In all cases it is i...

Page 7: ...ocal gas undertaking The inlet gas pressure under running conditions must not be less than 17 5mb 1 2 4 2 Meters An existing meter should be checked preferably by the gas undertaking to ensure that th...

Page 8: ...Installation 1 3 In the space Low Level Grille Free Area Low Level Grille Free Area High Level Grille Free Area Low Level Grille Free Area Low Level Grille Free Area High Level Grille Free Area High L...

Page 9: ...be provided If the air heater s is installed in a plant room the return air intake s and the warm air outlet s from the heater s must be fully ducted into and out of the plant room to avoid interferen...

Page 10: ...Page 10 NVX Range Users Instructions Service Instructions Issue 5 5 August 2015 1 3 Size Data NVx F Axial Fan Crossflow Units...

Page 11: ...00 700 760 100 233 5 492 142 317 450 232 5 925 206 114 297 1000 700 760 100 233 5 492 142 317 450 232 5 905 206 114 297 1000 700 912 100 233 5 644 142 317 450 232 5 925 206 114 374 1325 700 760 130 23...

Page 12: ...0 540 80 248 308 120 304 260 176 925 216 114 194 1000 700 760 100 233 5 492 142 283 260 197 925 206 114 297 1000 700 760 100 233 5 492 142 283 260 197 905 206 114 297 1000 700 912 100 233 5 644 142 28...

Page 13: ...4 1000 700 760 100 233 5 492 142 317 450 232 5 1430 206 114 297 1000 700 760 100 233 5 492 142 317 450 232 5 1430 206 114 297 1000 700 912 100 233 5 644 142 317 450 232 5 1430 206 114 374 1325 700 760...

Page 14: ...0 700 760 100 233 5 492 142 317 450 232 5 835 206 114 297 1000 700 760 100 233 5 492 142 317 450 232 5 835 206 114 297 1000 700 912 100 233 5 644 142 317 450 232 5 835 206 114 374 1325 700 760 130 235...

Page 15: ...al Fan Bi Directional Units Model A B C D E F G H J K L M N P mm mm mm mm mm mm mm mm mm mm mm mm mm mm 2325 700 700 130 235 5 356 220 347 850 278 1120 246 88 260 2325 700 831 130 235 5 487 220 347 85...

Page 16: ...e heater Top of heater Rear of heater Dependant on flue system used For Multi air heater Installations the following minimum distances between units must be observed Between units side to side Between...

Page 17: ...umstances must these points be used as the final means of suspension 2 1 2 Suspending the heater Threaded drop rods must have lock nuts fitted that are tightened down onto the 10mm fixings in the heat...

Page 18: ...n sealant around the face of the flange of the combustion air socket on the same side as the socket Passing the socket through the panel from the inside position the flange up against the panel Secure...

Page 19: ...centric adaptor to the terminal section and then extend down to the heater using straight lengths Fit adjustable lengths as the final connection pieces to facilitate flue disconnection for servicing E...

Page 20: ...ustable length Single to twin adaptor Flue socket Combustion air duct Maximum 6m Minimum 980mm Combustion air socket Note A terminal guard may be required Type C12 installation Type C32 installation P...

Page 21: ...ly sized See the wiring diagram accompanying these instructions Models supplied with a centrifugal fan silencer duct section require wiring to be completed between the heater and fan Refer to supplied...

Page 22: ...ss before leaving the factory After establishing the main burners test round the gas inlet connection using a leak detection fluid 1 Switch on the electrical supply at the isolator 2 If the limit indi...

Page 23: ...nal CO2 values are given for guid ance in the Table at the bottom of the previous page 5 Turn off the main burner and disconnect the pressure gauge and replace the sealing screw Turn on the main burne...

Page 24: ...as meter dial pointer ensuring that no other appliances supplied through the meter are in operation 3 Repeat 2 above with external controls set to maintain low fire 4 If it is necessary to adjust eith...

Page 25: ...ignal of 0 10V DC is 0 3V DC When P2 is set at 40 the drop out voltage with an input control signal of 0 10V DC is 4 0V DC 4 Potentiometer P3 Default setting 100 Controls the maximum hold in voltage I...

Page 26: ...Controls 1 Close the gas service tap and ensure that the gas valve is heard to close within 1 second and that the lockout light is illuminated Note that the heater may attempt five re ig nitions befo...

Page 27: ...2 7 4 Heat Exchanger Whilst the main burner assembly is removed from the unit check that the primary sections that the burners fire into are clean 2 7 5 Main Fan Assembly 2 7 5 1 NVx F CCF Models 1 In...

Page 28: ...at settings Fan Off Fan On Limit NVx 10 140 86 F 30o C 122 F 50o C 212 F 100 C 1 Squeeze the casing sides inward and pull casing forward 2 Remove the electrical connections from the thermostat 3 Remov...

Page 29: ...e 2 Electrical Loading 1ph NVx90 NVx120 5 00 2 30 7 80 3 80 NVx140 7 80 3 80 F Models CCF Models MODEL PLATE AMPS A START AMPS A RUN AMPS A FUSE RATING A NVx10 2 NVx15 0 18 0 34 0 16 910 2 8 4 2 2 10...

Page 30: ...00 183 F CCF HIGH FIRE LOW FIRE AIR VOLUME MAXIMUM DUCT RESISTANCE FAN MOTOR WEIGHT NVx60 65 60 60 0 32 80 27 88 1 5608 N A 0 680 135 5 250 1 40 213 NVx75 NVx90 NVx120 81 30 75 0 95 3 90 0 130 1 120 0...

Page 31: ...8 59 2 8 4 50 NVx90S 10 2 83 950 8 0 10 35 2 8 6 06 NVx90 6 3 5 1500 9 4 10 07 3 5 6 19 NVx120 8 3 5 1500 9 1 13 77 4 1 9 30 NVx140 10 3 5 1500 8 4 15 74 4 0 10 46 Minimum Inlet Pressure 37mbar Inlet...

Page 32: ...t reset when cold check for for 230V between terminals 9 11 on the limit interface board Check connections faulty limit stat Gas Electrical supplies present Unit at Lockout Lockout lamp on low level c...

Page 33: ...more ignition attempts then lock out Exhaust fan continues to run APS has lost C to N O continuity slightly reduce APS set point Check for 230V between terminals 13 N of the terminal strip Absent Rep...

Page 34: ...120 140 141378715 Ignition Electrode 10 75 142423002 Ignition Electrode 90S 90 140 142423004 Rectification Electrode All 142423003 Burner 10 75 142400240 Burner 90S 90 140 142400241 Fan Limit Thermost...

Page 35: ...04 Z 15 35 40 140232005 Z 15 50 90 140232006 Z 15 60 75 120 140 140232007 Z 15 90S 140232011 Main air fan Axial NVx V 10 15 140232002 Z 15 20 140232010 Z 15 30 40 140232009 Z 50 90 140232018 60 75 120...

Page 36: ...press However as part of our policy of continued product improvement we reserve the right to alter specification without prior notice Page 36 NVX Range Users Instructions Service Instructions Issue 5...

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