Lennox SPA036H4 Скачать руководство пользователя | Manualshive

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Содержание SPA036H4

Страница 1: ...nce Check List 20 RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE The S Class SPA outdoor units use R 410A HFC refrig erant This unit must be installed with a matching indoor coil and line set as outlined in the Lennox Engineering Handbook SPA outdoor units are designed for use in ex pansion valve TXV systems only They are not designed to be used with other refrigerant flow control devices The Lenn...

Страница 2: ...VAPOR INLET LIQUID LINE INLET INLETAIR COMPRESSOR ELECTRICAL INLETS X _ C r DISCHARGEd AIR BB _ 1 2 114 1 4 T_ n __ _ A 1102 I I I 2 3 4 70 F 1_ _ b 1 3 8 35 _ _ 16 1 161 I Yl 154 COIL DRAIN OUTLETS Around perimeter of base SIDE VIEW RUN CAPACITOR DEFROST CONTROL DISCHARGE LINE COMPRESSOR TERMINAL PLUG TXV CHECK VALVE VAPORLINE DISCHARGE TEMPERATURE THERMOSTAT INDEPENDENT MOTOR MOUNT CONTACTOR TWO...

Страница 3: ...port frame is constructed it must not block drain holes in unit base 4 When installed in areas where low ambient tempera tures exist locate unit so winter prevailing winds do not blow directly into outdoor coil 5 Locate unit away from overhanging roof lines which would allow water or ice to drop on or in front of coil or into unit Slab Mounting When installing unit at grade level top of slab shoul...

Страница 4: ...stalled on an outside wall or where it can be effected by sunlight drafts or vibrations 4 Install low voltage wiring from outdoor to indoor unit and from thermostat to indoor unit See figure 7 NOTE 24V Class II circuit connections are made in the low voltage junction box Three Phase Scroll Voltage Phasing Three phase scroll compressors must be phased sequential ly to ensure correct compressor rota...

Страница 5: ...ER TO COMPRESSOR IN UNIT RT21 A FOR ACTUAL TERMINAL ARRANGEMENT RTIS DEFROST _ WARNING AMBIENT COIL ELECTRIC SHOCK HAZARD CAN CAUSE INJURY SENSOR SENSOR OR DEATH UNIT MUST BE GROUNDED IN _ ACCORDANCE WITH NATIONAL AND LOCAL CODES e _DENOTES OPTIONAL COMPONENTS LINE VOLTAGE FIELD INSTALLED CLASS II VOLTAGE FIELD INSTALLED Z_ REMOVE JUMPER FOR TWO STAGE COOL Z_ RTI4 SENSOR OUTDOOR TEMP OPTIONAL Z_ 2...

Страница 6: ...th the structure wall ceiling or floor causes some objectionable noise when vibration is translated into sound As a result more energy or vibration can be expected Closer attention to line set isolation must be observed Following are some points to consider when placing and installing a high efficiency outdoor unit 1 Placement Be aware some localities are adopting sound ordinances based on how noi...

Страница 7: ...re 10 Refrigerant Line Sets Installing Vertical Runs new construction shown NO TE Similar installation practices should be used if line set is to be installed on exterior of outside wall OUTSIDE WALL IMPORTANT Refrigerant lines must not contact wall VAPOR LINE LI UID LINE VAPOR LINE WRAPPED WITH ARMAFLEX LIQUID _ _ _ LINE o IMPORTANT Refrigerant ines must not contact structure PVC PIPE FIBERGLASS ...

Страница 8: ...maroon washers from service valves and shield light maroon stickers in order to protect them during brazing Braze the line set to the service valve 4 Quench the joint with water or a wet cloth to prevent heat damage to the valve core and opening port IMPORTANT SPA units are used in check expansion valve systems only See the Lennox Engineering Handbook for approved TXV match ups and application inf...

Страница 9: ...outdoor unit is equipped with manual shut off valves AND you plan to use NEW R 22 refrigerant to flush the system Start the ex isting R 22 system in the cooling mode and close the liquid line valve Pump all of the existing R 22 refriger ant back into the outdoor unit It may be necessary to bypass the low pressure switches to ensure complete refrigerant evacuation When the low side system pressures...

Страница 10: ...es 10 Install the provided check expansion valve approved for use with R 410A refrigerant in the liquid line at the indoor coil A IMPORTANT Liquid Line Service Valve SERVICE PORT SERVICE PORT CAP Insert hex STEM CAP To indoor coil Valve Closed To outdoor coil SERVICE PORT SERVICE PORT CAP VALVE CORE wrench here STEM CAP To indoor coil Service port Is open to line set when valve is closed front sea...

Страница 11: ...oor unit must be checked for leaks WARNING WARNING Using an Electronic Leak Detector 1 Connect a cylinder of R 410A to the center port of the manifold gauge set 2 With both manifold valves closed open the valve on the R 410A cylinder vapor only 3 Open the high pressure side of the manifold to allow the R 410A into the line set and indoor unit Weigh in a trace amount of R 410A A trace amount is a m...

Страница 12: ...it Reconnect the manifold gauge to the vacuum pump turn the pump on and continue to evacuate the line set and indoor unit until the absolute pressure does not rise above 500 microns 29 9 inches of mercury within a 20 minute period after shutting off the vacuum pump and closing the manifold gauge valves When the absolute pressure requirement above has been met disconnect the manifold hose from the ...

Страница 13: ... compressor is charged with sufficient polyol ester oil for line set lengths up to 50 ft The outdoor unit should be charged during warm weather However applications arise in which charging must occur in the colder months The method of charging is determined by the outdoor am bient temperature Measure the liquid line temperature and the outdoor ambient temperature as outlined below 1 Connect manifo...

Страница 14: ...roon colored Refrigerant should be added through the vapor line valve in the liquid state NOTE Some R 410A cylinders are equipped with a dip tube that allows you to draw liquid refrigerant from the bottom of the cylinder without turning the cylinder upside down The cylinder will be marked if it is equipped with a dip tube Table 4 R 410A Temp F Pressure Psig Chart F Psig F Psig F Psig F Psig 32 100...

Страница 15: ... 115 49 0 488 148 468 147 492 149 These are most popular match up pressures Indoor match up indoor air quality and indoor load cause pressures to vary Temperature of the air entering the outside coil Table 8 Normal Operating Pressures Heating Operation Liquid 10 and Vapor 5 psig SPA036 SPA048 SPA060 F C Liquid I Vapor Liquid Ivapor Liquid Ivapor First Stage Low Capacity 40 4 4 296 95 315 _4 319 _1...

Страница 16: ... A hole cut into the bottom shelf of the control box provides access to the second stage control adjustment screw from the compressor compart ment See figure 20 Adjusting Low Ambient Thermostat Adjustment screw can be reached by inserting a screwdriver through the slot in underside of control box Turn screw clockwise to increase cut in and cut out setpoints Figure 20 Table 9 Low Ambient Thermostat...

Страница 17: ...lf calibrating principles to calibrate itself when the system starts and after every time the system de frosts The control board has the following components defrost relays anti short cycle timed off control pressure switch safety control 5 trip bckout circuit manufacturing test mode ambient and coil temperature sensors field se lectable termination temperature pins and a field low volt age connec...

Страница 18: ...elay Mode The defrost board has a field selectable function to reduce occasional sounds that may occur while the unit is cycling in and out of the defrost mode When a jumper is installed on the DELAY pins the compressor will be cycled off for 30 seconds going in and out of the defrost mode Units are shipped with jumper installed on DELAY pins NQTE The 30 second off cycle is not functional when jum...

Страница 19: ... a defrost cycle based on either frost detection or time Frost Detection If the compressor runs longer than 34 minutes and the actual difference between the clear coil and frosted coil temper atures exceeds the maximum difference allowed by the control a defrost cycle will be initiated IMPORTANT The demand defrost control board will aflow a greater accumulation of frost and will initiate fewer def...

Страница 20: ...ure Vapor Pressure Vapor Pressure 1st Stage 2nd Stage Refrigerant Lines Leak Checked _ Properly Insulated Service Valves Fully Opened _ Caps Tight SEQUENCE OF OPERATION Heating Correct _ Cooling Correct S P Drop Over Indoor Dry Vapor Pressure Date State State Service Technician 2nd Stage Supply Voltage Unit Off Outdoor Coil Entering Air Temp Refrigerant Charge Checked Refrigerant Charge Checked Ou...

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