Unitary products group EF-10 Скачать руководство пользователя | Manualshive

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035-18550-001-A-0902

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Unitary Products Group

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Содержание EF-10

Страница 1: ...OVALS 4 INSPECTION 4 INSTALLATION 5 MAINTENANCE 21 See the following page for a complete Table of Contents NOTES CAUTIONS AND WARNINGS Installer should pay particular attention to the words NOTE CAUTI...

Страница 2: ...RT UP 17 CRANKCASE HEATER 17 PRE START CHECK 17 INITIAL START UP 18 PHASING 18 OPERATION 18 GENERAL 18 SYSTEM SEQUENCE OF OPERATION 18 COOLING OPERATION 18 HEATING OPERATION 19 DEFROST CYCLE 20 OPERAT...

Страница 3: ...Split System E Heat Pump Split System F Product Identifier F R 22 Standard Efficiency 2 Pipe 10 Nominal Cooling Capacity MBH 07 7 1 2 Ton 10 10 Ton C Heat Type C Cooling Only 00 Nominal Heating Capac...

Страница 4: ...tion proce dure is not handled properly REFERENCE This instruction covers the installation of the outdoor unit For information on the matching indoor see PN 035 18877 001 All accessories come with a s...

Страница 5: ...ans Quantity 2 Diameter In No Blades 24 3 Nominal CFM 7830 Fan Motors2 HP 3 4 RPM 1100 Coil Face Area Sq Ft 36 11 Rows Deep x Rows High 2 x 40 Finned Length In 130 Tube Copper OD inches 3 8 Fins Alumi...

Страница 6: ...concrete slab with footers that extend below the frost line is recommended The slab should not be tied to the building foundation because noise and vibration will telegraph into the building A unit c...

Страница 7: ...m either side Remove the nesting brackets from the four corners on top of the unit All screws that are removed to take these brackets off must be replaced on the unit Do not use straps under the unit...

Страница 8: ...Piping and Access Panels 30 Left Side 24 Right Side 24 Rear 24 Bottom2 2 Adequate snow clearance must be provided during winter oper ation 0 Do not permit overhanging structures or shrubs to obstruct...

Страница 9: ...to Figure 5 for typical field wiring PHASING Scroll compressors operate in one direction only if a three phase scroll compressor is experiencing Low amperage draw Similar discharge and suction pressu...

Страница 10: ...MPACITY AMPS MAXIMUM FUSE SIZE2 AMPS MINIMUM DISCONNECT SIZE3 AMPS EF 10 2 208 230 3 60 1 42 0 239 0 2 3 4 3 0 58 5 100 100 4 460 3 60 1 19 2 125 0 2 3 4 1 6 27 2 45 45 1 The 208 230 V compressors and...

Страница 11: ...or a field installed liquid line should never exceed 40 psi because the liquid refriger ant could flash before it reaches the expansion valve This flashing will not only cause erratic valve operation...

Страница 12: ...h the cooling and heating cycles SERVICE VALVES These outdoor units have both vapor and liquid line service valves Both valves are shipped from the factory front seated and closed with the valve stem...

Страница 13: ...lve stem should be turned to its maximum clockwise posi tion 2 Drill a small hole through the disc before unbrazing it to permit a flow of dry nitrogen through the con nection while it is being unbraz...

Страница 14: ...connection on the indoor unit while maintaining a minimum flow of dry nitrogen through the liquid line the indoor coil and the hole in the vapor disc 7 Unbraze the disc on the vapor connection of the...

Страница 15: ...e 1 4 turn to open its access port for reading pressure Start the compressor after 8 hours of crankcase heat turn the stem of the vapor line service valve clockwise 1 4 turn to open its service port a...

Страница 16: ...glass is clear Add approximately 1 extra pound of refrigerant to assure a liquid refrigerant seal at the expansion valve under all operating condi tions Block the flow of the condenser air if necessar...

Страница 17: ...rials etc 3 Have the outdoor fans been rotated manually to check for free rotation 4 Are all wiring connections tight 5 Does the available power supply agree with the nameplate data on the unit 6 Have...

Страница 18: ...age draw Similar discharge and suction pressures Increased noise level then the compressor is operating in reverse To correct this condition switch any two 2 line voltage leads at the contactor Please...

Страница 19: ...ALL THREE RESET METHODS DESCRIBED ABOVE A FIVE MINUTE TIME DELAY WILL TAKE PLACE AFTER THE RESET BEFORE THE UNIT WILL RESTART HEATING OPERATION 1 Reversing valve is de energized and the system will be...

Страница 20: ...ATION BELOW 0 F OUTDOOR TEMPERATURE 1 At 0 F outdoor temperature the low temperature compressor cutoff thermostat 1TH contacts 1 and 3 will open de energizing contactor 1M which shuts down the compres...

Страница 21: ...em performance and efficient operation If the coil is extremely dirty it may be necessary to use an industrial grade detergent and a hose to clean the fin surface LUBRICATION The outdoor fan motors ar...

Страница 22: ...035 18550 001 A 0902 22 Unitary Products Group...

Страница 23: ...035 18550 001 A 0902 Unitary Products Group 23...

Страница 24: ...o change without notice Printed in U S A 035 18550 001 A 0902 Copyright by Unitary Products Group 2002 All rights reserved Supersedes 035 18550 000 A 0402 Unitary 5005 Norman Products York OK Group Dr...

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