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Operation & Maintenance Manual

VUD, VUF, VDF & HCD Series

Unit Ventilator

© 2006 TEMSPEC INCORPORATED

IMPORTANT:

Read and save this manual for future reference.

This manual is to be left with the equipment owner

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Содержание HCD 1200

Страница 1: ...Operation Maintenance Manual VUD VUF VDF HCD Series Unit Ventilator 2006 TEMSPEC INCORPORATED IMPORTANT Read and save this manual for future reference This manual is to be left with the equipment owner ...

Страница 2: ...5 Model VUF 1200 6 Model VUF 1500 7 Model VDF 1200 8 Model HCD 1200 9 Model HCD 1600 10 OPERATION Sequence Of Operation 11 Hot Water Circuit 12 Refrigeration Circuit 13 Electrical Circuit 14 Dampers 14 Filtration 14 MAINTENANCE Servicing the Unit 15 Maintenance Schedule 15 Changing the Filters 16 Cleaning the Evaporator Coil 16 Motors 16 TROUBLESHOOTING Basic Troubleshooting Guidelines 17 REPLACEM...

Страница 3: ...room Because the unit can be ducted an even distribution of air can be achieved throughout the room The unit ventilator is constructed with heavy gauge metal and sound absorbing insulation for optimal sound attenuation By applying sound engineering principles and thorough testing we ensure the highest quality of performance in our unit ventilators ABOUT THE UNIT VENTILATOR NOMENCLATURE FOR NON COM...

Страница 4: ...ECTION Split System DX 6 S A Supply Air 21 5 R A 8 21 5 O A 5 4 3 2 1 7 O A 9 HW S A 8 Return air damper 9 2 pipe or 4 pipe hot water coil can be in the reheat position 10 Ceiling tile 11 Top extension optional 12 Coil access panel 13 Hinged filter access panel 14 Heavy duty return air grille FRONT ELEVATION 14 R A R A Return Air 28 Duct By Others 10 11 12 13 4 S A 93 H NOTE The component arrangem...

Страница 5: ... SECTION Split System DX 6 S A Supply Air 23 R A 8 23 O A 5 4 3 2 1 7 O A 9 HW S A 8 Return air damper 9 2 pipe or 4 pipe hot water coil can be in the reheat position 10 Ceiling tile 11 Top extension optional 12 Coil access panel 13 Hinged filter access panel 14 Heavy duty return air grille FRONT ELEVATION 14 R A R A Return Air 33 Duct By Others 10 11 12 13 4 S A 93 H NOTE The component arrangemen...

Страница 6: ...t System DX O A 23 O A R A SIDE SECTION Hot Water Chilled Water 23 4 1 2 3 9 7 6 CW HW S A R A Return Air 8 Return air damper 9 2 pipe or 4 pipe hot water coil can be in the reheat position 10 Ceiling tile 11 Top extension optional 12 Coil access panel 13 Hinged filter access panel 14 Heavy duty return air grille FRONT ELEVATION R A 14 44 13 12 11 10 Duct By Others 93 H NOTE The component arrangem...

Страница 7: ...r 7 Filters SIDE SECTION Split System DX 21 5 R A 21 5 3 5 6 O A 4 1 2 O A 7 8 S A 9 HW CW R A Return Air 8 Return air damper 9 2 pipe or 4 pipe hot water coil can be in the reheat position 10 Double deflection supply air grille 11 Coil access panel 12 Hinged filter access panel 13 Heavy duty return air grille FRONT ELEVATION 13 R A 28 10 11 12 3 S A S A 93 S A NOTE The component arrangement shown...

Страница 8: ...ECTION Split System DX O A 23 O A R A SIDE SECTION Hot Water Chilled Water 23 4 2 1 3 5 8 7 6 S A 9 HW CW R A Return Air 8 Return air damper 9 2 pipe or 4 pipe hot water coil can be in the reheat position 10 Double deflection grilles 11 Coil access panel 12 Hinged filter access panel 13 Heavy duty return air grille FRONT ELEVATION 13 44 12 11 10 S A 93 S A NOTE The component arrangement shown abov...

Страница 9: ...ng return mixed air damper actuator 6 Filters 7 Slab type DX cooling coil S A Supply Air 21 5 8 7 21 5 4 3 2 O A 1 6 5 R A 9 O A 8 Drain pan 9 2 pipe or 4 pipe hot water coil can be in the reheat position 10 Heavy duty return air grille 11 Hinged filter access panel 12 Coil access panel FRONT ELEVATION 8 R A Return Air S A 28 S A 11 12 10 R A 93 NOTE The component arrangement shown above may vary ...

Страница 10: ...A 5 R A 4 2 10 x 12 Supply Air Opening ISOMETRIC VIEW shown with left side access panel 8 Hot water coil for spilt system DX or heating only units Optional steam and electric heater also available 9 Supply air fan 10 Mounting brackets 4 per unit 11 Left or Right side hinged filter access panel Bottom hinged access panel also available 12 Left or Right side hinged coil access panel Bottom hinged ac...

Страница 11: ...A 5 R A 4 2 12 x 10 Supply Air Opening ISOMETRIC VIEW shown with left side access panel 8 Hot water coil for spilt system DX or heating only units Optional steam and electric heater also available 9 Supply air fan 10 Mounting brackets 4 per unit 11 Left or Right side hinged filter access panel Bottom hinged access panel also available 12 Left or Right side hinged coil access panel Bottom hinged ac...

Страница 12: ...off The outdoor air and the return air dampers modulate to maintain the room at the economizer set point If the mixed air falls to a programmed temperature usually 52 F the outdoor air damper will modulate towards closed until the mixed air temperature rises again typically to 55 F in this free cooling mode the ability of the unit ventilator to provide sufficient cooling is limited only by the out...

Страница 13: ...ntrol Valve MIXED AIR Strainer MV Isolation Valve Isolation Valve Balancing Valve Return Supply WATER COIL Hot Water Chilled Water with 3 way Control MIXED AIR C Strainer NO NC 3 way Control Valve Manual Air Vent MV Isolation Valve Balancing Valve Isolation Valve Return Supply WATER COIL Warning City water is very corrosive to brass components Provide water treatment as soon as the system is charg...

Страница 14: ...refrigeration circuit EVAPORATOR COIL MIXED AIR Metering Device Anti Ice Control Distributor Pressure Test Port Sight Glass Moisture Indicator High Limit Cut Out Low Limit Cut Out CONDENSER COIL TEMSPEC UNIT VENTILATOR REMOTE CONDENSING UNIT Crankcase Heater OUTDOOR AIR Compressor Refrigeration Circuit ...

Страница 15: ...hematic for the damper actuator model type Internal powered exhaust is an optional feature that is provided with our vertical series unit ventilators This feature comes with a fan and damper module that is mounted into the return air section of the unit Control should be setup by the temperature controls contractor to operate as an on off device as the outdoor air damper opens and closes Typically...

Страница 16: ...ing the remote disconnect switch to the off position Drain Pan Instruction Please check the drain pan for proper drainage as part of commissioning Check to make sure the drain pain overflow switch didn t come loose or shift during shipping as part of commissioning The unit should be checked to ensure the drain pan is level free of debris and the drain line properly connected to the riser stub out ...

Страница 17: ...ator coil purchase a suitable evaporator coil cleaning solution such as those offered by NU CALGON www nucalgon com Follow the manufacturers instructions for use Note Chlorine based or anti fungal pucks or socks are acceptable when placed in the evaporator drain pan Be sure to vacuum the drain pan during the cleaning process If the filters are regularly changed the heating coils do not require cle...

Страница 18: ... properly Check to see if motor is burned out Compressor shot cycles Ensure that there are no obstructions which would cause the unit to cut out on high head pressure Check refrigerant level If the level is to low the unit will cut out on low pressure The Refrigerant type and the amount is posted on the metallized CSA label located on the fan housing NOTE Temspec does not recommend the use of a Un...

Страница 19: ...t parts be required within the warranty period they will be supplied at no charge freight prepaid to the jobsite The cost of labor or incidental expenses incurred in the repair or replacement of parts does not form part of this warranty The warranty period commences from the date of shipment except when otherwise agreed at the point of sale see specific warranty terms and conditions for details Co...

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