Nordair Niche DH2 150 Скачать руководство пользователя страница 1

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DIRECT FIRED

DV/DH DIRECT GAS-FIRED

MAKE-UP AIR UNITS

Installation, Commissioning

& Service Manual

Ambi-Tec/Ambi-Stat

Содержание DH2 150

Страница 1: ...DIRECT FIRED DV DH DIRECT GAS FIRED MAKE UP AIR UNITS Installation Commissioning Service Manual Ambi Tec Ambi Stat...

Страница 2: ...d be required on the access side of the heater and a minimum 500mm clearance required on the non access side and top of the heater For heaters mounted in the roof steel work the units can be supported...

Страница 3: ...Internal wiring The amount of interconnecting wiring will depend on the control system being used this will be indicated on the schematic wiring diagram with the minimum connections Ambitec controlle...

Страница 4: ...Louvre 4 OFF 20mm electrical connection points H BSP gas inlet connection B B C Discharge opening C Discharge 50 50 50 500 50 50 50 500 DH2 75 1 2 BSP Weather proofed hood fitted to external units on...

Страница 5: ...SP 1400 856 DH2 75 1 2 BSP Weather proofed hood fitted to external units only ACCESS SIDE VIEW VIEW ON DISCHARGE OUTLET VIEW ON FRESH AIR INLET A Electrical control panel B N Optional extra discharge...

Страница 6: ...set point say 19 C adjustable the heater discharge air temperature is controlled at a constant 40 C by means of a active duct sensor modulating the gas throughput control valve At 1 C above room set...

Страница 7: ...and main electrical supply Gas installation pipework has been tested for soundness Gas installation has been purged Note and record fan motor data badge details Note and record fan and motor pulley si...

Страница 8: ...le and with a pair of grips on the valve spindle minutely close to the valve in small stages until the 5 C temperature rise is obtained With great care tighten the U clamp onto the valve spindle ensur...

Страница 9: ...on pipework has been tested for soundness Gas installation has been purged Note and record fan motor data badge details Note and record fan and motor pulley sizes belt reference and pulley centres Fan...

Страница 10: ...t increase the burner pressure at high fire then the gas control valve requires resetting Connect a separate manometer to pressure tapping point P5 and P9 measure the pressure The differential gas pre...

Страница 11: ...out condition Remove the air sensing tube from the bottom connection of the air pressure switch The heater will lockout Replace and reset Adjust overheat controller set point down until heater shuts o...

Страница 12: ...LATE DRIVE FREE PROFILE DAMPER SLIDE RAILS GREASE PROFILE DAMPER LIMIT SWITCH OPERATION PROFILE DAMPER DRIVE LINKAGE PROFILE DAMPER DRIVE MOTOR DRIVE BELT CONDITION BURNER GAS PORTS RE DRILL BURNER MI...

Страница 13: ...PLATE DRIVE FREE PROFILE DAMPER SLIDE RAILS GREASE PROFILE DAMPER LIMIT SWITCH OPERATION PROFILE DAMPER DRIVE LINKAGE PROFILE DAMPER DRIVE MOTOR DRIVE BELT CONDITION BURNER GAS PORTS RE DRILL BURNER M...

Страница 14: ...ELT CENTRES ALIGNMENT TENSION PROFILE OPENING VELOCITY BURNER SIZE CURRENT L1 L2 L3 OVERLOAD SIZE GAS LINE SUCTION LOW FIRE HIGH FIRE DIFF GOVERNOR INLET PRESS GOVERNOR OUTLET PRESS PILOT PRESSURE AIR...

Страница 15: ...TS BELT CENTRES ALIGNMENT TENSION PROFILE OPENING VELOCITY BURNER SIZE CURRENT L1 L2 L3 OVERLOAD SIZE GAS LINE SUCTION LOW FIRE HIGH FIRE DIFF GOVERNOR INLET PRESS GOVERNOR OUTLET PRESS PILOT PRESSURE...

Страница 16: ...Layout of electrical equipment DV heater Layout of electrical equipment DH heater...

Страница 17: ...rmer V5 Motorised Ball Valve M1 Modulating Control Valve Motor V6 Burner Isolating Valve P4 Air Pressure Switch V7 Pilot Gas Isolating valve T1 Room Sensor V8 Pilot Governor T2 Duct Sensor V9 V10 Pilo...

Страница 18: ...ssure test point P1 and P3 to pressurise the assembly between the two safety shut off valves Connect pressure gauge to pressure test point P4 10 Open V1 any rise in pressure indicates the downstream s...

Страница 19: ...10 x 50 LG HEX Head Set Screw 5 M5 x 12 HEX Head Set Screw 6 M10 Nut and Washer 7 Support Bracket Gasket N0010 8 M5 x 40 HEX Head Set Screw 9 M5 nut and Washer 10 Stainless Steel Mixing Plate N0006 11...

Страница 20: ...he black section normally takes 1 min 28 seconds for the MMI 810 1 Note References to terminal numbers in this section relate to those in the Satronic burner controller sub base and do not correspond...

Страница 21: ...rminal 5 or terminal C If solenoid coils fitted with rectifier the negative side must be connected to terminal 5 or C Flame sensing probe earthing Reposition or replace flame sensing probe Lockout dur...

Страница 22: ...me failure due to loss of gas supply Investigate the cause of gas supply failure Flame failure due to an unstable flame Check the flame signal during the switching from high to low to hire fire Adjust...

Страница 23: ...d Hazel Grove STOCKPORT Cheshire SK7 4LD Tel 0161 482 7900 Fax 0161 482 7901 Description Part No Spark Probe N1014 Flame Probe IEG 18 6 N1007 Satronic MMI810 N1018 4 Pole Miniature Relays N1244 N1260...

Страница 24: ...programming and this should be carried out by a Nordair Niche Engineer Modulating gas valve control unit Isolate electric supply unbolt motor clamp from valve spindle and remove motor from motor mount...

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Страница 26: ...n Nortek Global HVAC reserves the right to change product speci cation without due notice NORTEK GLOBAL HVAC UK LTD Fens Pool Avenue Brierley Hill West Midlands DY5 1QA United Kingdom Tel 01384 489 25...