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Page No 22 Reznor, Guardian GB GR and GS, Installation Manual, EN 2021-08, D301214 Iss D

Installer wiring LPHW heated models, single phase

Figure 22 Wiring diagram LPHW heated

Terminal

Description

Cable

Neutral

1.5mm²

Live

Earth

Table 8 Cable specification LPHW heated

Protection

External circuit breaker with the appropriate
rating should be installed for the protection of the
installation.

Terminal

Description

Cable

7 & 8

Optional external switch

1.5mm²

maximum

9 & 10

Optional door contact

5 & 6

Optional external sensor

1 & 2

Return temperature sensor

3 & 4

Flow temp sensor

230V valve output

PCB fuses

Rating (A)

T1H (slow blow)

Table 8.1 Cable specification LPHW heated

230v 50Hz

MAINS SUPPLY

RJ45 Cable

Programmer

Keypad

External Switch

(BMS)

Door Switch

Factory Connections

Installer Wiring

900726 Guardian Signal Pro Series LPHW - Installer Connections

External Temp

Sensor

Rtn Temp

Sensor

Flow Temp

Sensor

Valve enable

(230V)

2 3 4 5 6 7 8 9 10 11

L N

Summary of Contents for GUARDIAN GB

Page 1: ...carefully before commencing installation commissioning and or servicing Leave it with the end user site agent to be placed in their premises technical file after installation WARNING Improper install...

Page 2: ...ir curtain addressing 23 Keypad buttons 24 Keypad display 24 Operation 24 User operation 25 1 Set operating mode 25 2 All off mode 25 3 All auto mode 25 4 All on mode 25 5 All heat off 25 6 Set door o...

Page 3: ...Spare Parts SP Spare parts 39 General 39 Parts Replacement PR Parts replacement 40 Control panel 40 Heating element 40 Fan deck 40...

Page 4: ...ther to cover the full door opening across wider entrances All models are supplied with a Signal Pro display program panel and 10m length of RJ45 communication cable The panel allows the user to contr...

Page 5: ...distribution conditions and supply voltage are compatible with the unit Additionally with LPHW heated air curtains check that the flow return temperature and pressure of the LPHW system are compatible...

Page 6: ...ay panel control wiring RJ45 pre wired cable required Cable terminal size 1 5mm2 MAX Electric Heated Models Electrical supply L M H 415V 3 phase 50Hz and Neutral Heating capacity standard L M H kW 9 1...

Page 7: ...4kW L C 34 33 33 M C 29 28 29 H C 24 22 24 Weight incl water L M H kg 38 5 58 72 External fuse size D type MCB H A 6 Table 1 Technical data Standard Capacity is the factory default High Capacity is ac...

Page 8: ...0 60 50 50 40 Rating kW 18 93 18 48 14 9 11 3 7 67 Temp Rise C 14 9 14 5 11 7 8 9 6 Volumetric Fluid Flow m h 1 5 1 6 1 3 1 0 7 Mass Fluid Flow kg h 1477 1587 1281 973 661 Fluid Velocity m s 2 62 2 81...

Page 9: ...arance allows for cable entry and prevents combustible surfaces overheating The minimum mounting height floor to grille outlet is 1 8m The recommended maximum mounting height is 3m for standard fan se...

Page 10: ...commended that a minimum clearance of 100mm is allowed around the case The clearance allows for cable entry and prevents combustible surfaces overheating The minimum mounting height floor to grille ou...

Page 11: ...830 1360 1884 4 226 5 1060 1584 2111 6 448 7 1125 1650 2177 8 436 9 300 10 427 487 Figure 4 3 GB Side view Table 4 GB Dimensions Clearance distances It is recommended that a minimum clearance of 100mm...

Page 12: ...y panel is supplied with an industry standard plastic double surface mounted socket box Alternatively the display panel can be flush mounted using a customer supplied metal flush conduit box as shown...

Page 13: ...D301214 Iss D Page No 13 TD Component layout Figure 6 Component layout GS Location Component 1 Control panel 2 Installer terminal block 3 Fan 4 Fan motor 5 Fan deck 6 Resistor 1500 only 7 Heating ele...

Page 14: ...re 8 Honeycomb outlet position near to the door adjustable angle of 0 to 5 Electrical supply Electrically heated units require a connection to 3 phase 415V and neutral power supply only Ambient and LP...

Page 15: ...grove in the case 3 The first cover can then be pushed to the right to release it from the screw slot see figure 10 then pull forward and lift upwards to be removed For additional covers fitted on th...

Page 16: ...re provided in the casing for cable entry Choose the appropriate hole to suit the installation Note the terminal connection block is located to the right of the unit 7 Install the cable into the case...

Page 17: ...o drop rods in the bracket 3 Ensure the unit is level and then tighten the fixing points with a final check to ensure the unit is level 4 Follow the instructions 6 to 10 of the drop rod mounting instr...

Page 18: ...trunking to avoid external interference Maximum cable run in any network must not exceed 100m in total including display panel cable Note All air curtains connected within the network system will ope...

Page 19: ...program as described on page 28 Ambient and LPHW model The Ambient models have no heat elements and the LPHW models have a coil which the capacity cannot be controlled by the internal circuit board t...

Page 20: ...SUPPLY RJ45 Cable Programmer Keypad External Switch BMS Door Switch J1 Factory Connections Installer Wiring 900725 Guardian Signal Pro Series Ambient Installer Connections J2 6 5 4 3 2 1 L N PE Figure...

Page 21: ...nd E3 Figure 21 Wiring diagram electric heated Terminal Description Cable PE Mains earth 10mm N Neutral L1 Phase 1 L2 Phase 2 L3 Phase 3 1a to 6a Capacity jumpers see page 19 Table 7 Cable specificati...

Page 22: ...installation Terminal Description Cable 7 8 Optional external switch 1 5mm maximum 9 10 Optional door contact 5 6 Optional external sensor 1 2 Return temperature sensor 3 4 Flow temp sensor 11 230V v...

Page 23: ...of the first air curtain and then take across to one of the RJ45 sockets in the second air curtain Further RJ45 cables can be used to connect more air curtains to the network up to a maximum of 16 air...

Page 24: ...re 23 C Operation In normal operation the home screen displays the status of the display panel and each connected air curtain in sequence Each screen is displayed for two seconds Display Status Top li...

Page 25: ...then returns to default display 3 All Auto mode A single press of OK quickly starts Auto timed operation for all air curtains and then returns to default display When in Auto mode during an on time pe...

Page 26: ...then OK Hours starts flashing Use PLUS and MINUS to adjust hours 00 to 23 then OK Minutes starts flashing Use PLUS and MINUS to adjust minutes 00 to 59 then OK After this OK the new Time and Day is st...

Page 27: ...menu If address was individual then next address is flashing Use PLUS and MINUS to set address OK to modify the fab speed or MENU to exit back to engineers menu 3 Set door closed temperature Door clos...

Page 28: ...mperatures are scaled down to a minimum at outside temperature limit Note All air curtains use the same outside temperature operation 6 Set temperature limits Set temperature limits is only displayed...

Page 29: ...t language OK starts language flashing Use PLUS and MINUS to select language from available options then OK and back to engineers menu 11 Reset connected air curtain address list OK starts no flashing...

Page 30: ...legacy LPHW system New LPHW system A C H F O F R S F T D Where AC is address of AC with diagnostics being displayed H 1 heat on 0 heat off from AC flag F 0 to 3 fan level from AC flag 0 is off O outsi...

Page 31: ...e limit the fan will continue to run but the heat output will be off When the outside temperature is below 0 C the air outlet temperature will be the set temperature plus the elevate at zero temperatu...

Page 32: ...e fan will continue to run but the heat valve output will be off When the outside temperature is below the full flow return at temperature the target flow and return temperatures set for the air curta...

Page 33: ...ON Modbus Address Switch Setting Modbus Address Switch Setting 16 0 24 8 17 1 25 9 18 2 26 A 19 3 27 B 20 4 28 C 21 5 29 D 22 6 30 E 23 7 31 F Modbus function codes supported Codes Descriptions Range...

Page 34: ...istor not fitted Set_fan1 Read write Switch fan 1 Set_fan 2 Read write Switch fan 2 Set_fan 2 Read write Switch fan 2 Heat Read write Switch heat demand on off A Timer_link_ mask Read write Set to for...

Page 35: ...the dog bone slot This panel can then be lifted out of the tabs at the bottom to fully release see figure 9 on page 14 2 GR units loosen the screws securing the inlet grille and hinge down the grille...

Page 36: ...arrier from the stud side on the 2m models the centre support can be moved to one side to allow the stud side to be released On the GS units peal back the tabs which retain the honeycomb outlet remove...

Page 37: ...t may help to identify the nature of the fault however we do not recommend re setting without a thorough investigation into why the cut out operated Figure 31 Thermal cut out Display panel Any fault w...

Page 38: ...disconnected Air sensor broken Check cable Replace air sensor Air sensor temp too high Fan operating no heat High ambient air temperature Incorrect motor or fan deck rotation Motor failure Check venti...

Page 39: ...037491 n a Honeycomb core 1026068 1026078 1026068 Inlet cover assembly GS 1026849 Inlet cover assembly GR 1026662 1026163 1026829 Inlet cover filter only GS 1026664 Filter securing clip GS 1026910 Inl...

Page 40: ...Heating element 1 Follow steps to remove the covers 2 Remove the fixing bolts holding the honey comb outlet grill assembly and remove this 3 Make a note of the wiring at the control panel for the hea...

Page 41: ...Notes...

Page 42: ...Notes...

Page 43: ...Notes...

Page 44: ...ered trademark of the Nortek Global HVAC limited Because of the continuous product innovation Nortek Global HVAC reserves the right to change product specification without due notice This document rep...

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