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Lennox HSXA19 SERIES, Руководство по установке

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Page 8

Refrigerant Line Sets

 How To Install Vertical Runs

(new construction shown)

PVC Pipe

Fiber Glass

Insulation

Caulk

Outside Wall

Vapor Line

(wrapped with Armaflex)

Liquid Line

IMPORTANT - Refrigerant

lines must not contact

structure.

Outside Wall

Inside Wall

Liquid Line

Vapor Line

IMPORTANT - Refrigerant

lines must not contact wall.

Wood Block

Between Studs

Strap

Sleeve

Wood Block

Strap

Sleeve

Wire Tie

Wire Tie

Wire Tie

NOTE - Similar installation practices should be used if
line set is to be installed on exterior of outside wall.

Figure 7

Содержание HSXA19 SERIES

Страница 1: ...andbook Coils previously charged with HCFC 22 must be flushed INSTALLATION INSTRUCTIONS HSXA19 SERIES UNITS CONDENSING UNITS 504 919M 04 04 Supersedes 03 04 Table of Contents HSXA19 Outdoor Unit 1 Shipping Packing List 1 General Information 1 Unit Dimensions 2 Parts Arrangement 3 Setting The Unit 3 Electrical 4 Refrigerant Piping 7 Refrigerant Metering Device 11 Flushing Existing Line Set Indoor C...

Страница 2: ... 3 4 70 4 102 A 4 102 2 9 16 65 AIR INLET AIR INLET 3 1 8 79 3 1 8 79 3 1 8 79 32 1 8 816 34 1 16 865 18 5 8 473 9 1 8 232 9 1 8 232 Model No A B HSXA19 024 in 30 7 8 32 1 8 HSXA19 036 mm 784 816 HSXA19 038 in 44 7 8 32 1 8 HSXA19 038 mm 1140 816 HSXA19 048 in 34 7 8 13 3 4 HSXA19 048 mm 886 349 HSXA19 060 in 40 7 8 19 3 4 HSXA19 060 mm 1038 502 ...

Страница 3: ...e to one side must be 36 914 mm Clearance to one of the remaining two sides may be 12 304 mm and the final side may be 6 152 mm NOTE A clearance of 24 610 mm must be maintained between two units NOTE 48 1219 mm clearance required on top of unit Maximum soffit overhang is 36 914 mm as noted as noted A Slab Mounting When you install the unit at grade level the top of the slab should be high enough a...

Страница 4: ...st be grounded in accordance with national and local codes Electric Shock Hazard Can cause injury or death 1 Install line voltage power supply to unit from a properly sized disconnect switch 2 Ground unit at unit disconnect switch or to an earth ground NOTE Connect conduit to the unit using a proper conduit fitting NOTE Units are approved for use only with copper conductors 24V Class II circuit co...

Страница 5: ...Page 5 HSXA19 024 036 048 and 060 Wiring Diagram Figure 5 ...

Страница 6: ...Page 6 HSXA19 038 Wiring Diagram Figure 6 ...

Страница 7: ...equipped with an RFCI metering device is being replaced the liquid line must also be replaced prior to the installation of the HSXA19 unit If refrigerant lines are routed through a wall seal and isolate the opening so vibration is not transmitted to the building Installing Refrigerant Line During the installation of any heat pump or a c system it is important to properly isolate the refrigerant li...

Страница 8: ...uid Line IMPORTANT Refrigerant lines must not contact structure Outside Wall Inside Wall Liquid Line Vapor Line IMPORTANT Refrigerant lines must not contact wall Wood Block Between Studs Strap Sleeve Wood Block Strap Sleeve Wire Tie Wire Tie Wire Tie NOTE Similar installation practices should be used if line set is to be installed on exterior of outside wall Figure 7 ...

Страница 9: ...Wire Tie Wire Tie around vapor line only Floor Joist or Roof Rafter Tape or Wire Tie Strap the vapor line to the joist or rafter at 8 ft intervals then strap the liquid line to the vapor line To hang line set from joist or rafter use either metal strapping material or anchored heavy nylon wire ties Floor Joist or Roof Rafter Figure 8 ...

Страница 10: ... Anchored Heavy Nylon Wire Tie Automotive Muffler Type Hanger Wall Stud Wall Stud Liquid Line Vapor Line Wrapped in Armaflex Strap Liquid Line To Vapor Line Metal Sleeve Figure 9 Outside Unit Placement and Installation Install unit away from windows and away from neighbors windows Two 90 elbows installed in line set will reduce line set vibration Figure 10 ...

Страница 11: ...pplication information Check expansion valves equipped with Chatleff fittings are available from Lennox Refer to the Engineering Handbook for applicable expansion valves for use with specific match ups If you install a check expansion valve with an indoor coil that includes a fixed orifice remove the orifice before installing the check expansion valve See figure 11 for installation of the check ex...

Страница 12: ...rt the existing HCFC 22 system in the cooling mode and close the liquid line valve Pump all of the existing HCFC 22 refrigerant 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 reach 0 psig close the va por line valve Disconnect all power to the existing out door unit Refer to gauges afte...

Страница 13: ...e liquid refrigerant has been recovered switch the recovery machine to vapor recovery so that all of the HCFC 22 vapor is recovered Allow the re covery machine to pull a vacuum on the system NOTE A single system flush should remove all of the mineral oil from the existing refrigerant lines and in door coil A second flushing may be done using clean refrigerant if insufficient amounts of mineral oil...

Страница 14: ... Service Valve 1 Remove the stem cap with an adjustable wrench 2 Use a service wrench with a hex head extension to turn the stem clockwise to seat the valve Tighten it firmly NOTE Use a 3 16 hex head extension for liquid line sizes 3 Replace the stem cap Tighten finger tight then tighten an additional 1 6 turn Ball Type Vapor Valve All Units Vapor line service valves function the same way as the o...

Страница 15: ... to check that an adequate amount of refrigerant has been add ed for detection refrigerant requirements will vary with line lengths Check all joints for leaks Purge ni trogen and R410A mixture Correct any leaks and re check IMPORTANT Leak detector must be capable of sensing HFC re frigerant Evacuation Evacuating the system of noncondensables is critical for proper operation of the unit Noncondensa...

Страница 16: ...ing Power must be within range shown on the nameplate Charging This system is charged with R410A refrigerant which oper ates at much higher pressures than HCFC 22 This unit is NOT approved for use with coils which include metering orifices or capillary tubes Processing Procedure Units are factory charged with the amount of R410A refrig erant indicated on the unit rating plate This charge is based ...

Страница 17: ... Block equal sections of air intake panels and move obstructions sideways until the liq uid pressure is in the 325 375 psig 2240 2585 kPa range See figure 15 Blocking Outdoor Coil cardboard or plastic sheet Outdoor coil should be blocked one side at a time with cardboard or plastic sheet until proper testing pressures are reached Figure 15 Four sided unit shown 1 With the manifold gauge hose still...

Страница 18: ...bient temperature to check the liquid line temperature 5 The difference between the ambient and liquid temper atures should match values given in table 5 If the val ues don t agree with the those in table 5 add refriger ant to lower the approach temperature or recover re frigerant from the system to increase the approach temperature Be aware of the R410A refrigerant cylin der It will be light maro...

Страница 19: ... 150 342 147 337 150 332 145 358 147 105 40 6 380 152 395 148 388 154 380 147 407 149 115 46 1 432 155 451 149 443 156 430 150 456 150 Second Stage High Capacity Outdoor Coil Entering Air Temp F C 024 036 038 048 060 Air Temp F C Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor 65 18 3 222 142 233 131 224 133 226 132 251 127 75 23 9 258 144 266 134 259 139 261 135 291 135 85 29 4 3...

Страница 20: ...5 506 5 43 125 0 74 214 0 105 340 5 136 512 9 44 127 3 75 217 4 106 345 3 137 519 3 45 129 7 76 220 9 107 350 1 138 525 8 46 132 2 77 224 4 108 355 0 139 532 4 47 134 6 78 228 0 109 360 0 140 539 0 48 137 1 79 231 6 110 365 0 141 545 6 49 139 6 80 235 3 111 370 0 142 552 3 50 142 2 81 239 0 112 375 1 143 559 1 51 144 8 82 242 7 113 380 2 144 565 9 52 147 4 83 246 5 114 385 4 145 572 8 53 150 1 84 ...

Страница 21: ...e diagnostic indicator detects the most common fault conditions in the air conditioning system When an abnor mal condition is detected the module communicates the specific condition through its ALERT and TRIP lights The module is capable of detecting both mechanical and elec trical system problems See figure 1 for the system opera tion monitor IMPORTANT This monitor does not provide safety protect...

Страница 22: ... to close 4 High pressure switch is open and requires manual reset 5 Open circuit in compressor supply wiring or connections 6 Unusually long compressor protector reset time due to extreme ambient temperature 7 Compressor windings are damaged Yellow Alert Flash Code 6 Open Start Circuit Current only in run circuit 1 Run capacitor has failed 2 Open circuit in compressor start wiring or connections ...

Страница 23: ... to section on refrigerant charging in this instruction Optional Accessories Refer to the Engineering Handbook for optional accesso ries that may apply to this unit The following may or may not apply Loss of Charge Kit High Pressure Switc Kit Compressor Monitor Compressor Crankcase Heater Hail Guards Mounting Bases Timed Off Control Stand off Kit Sound Cover Low Ambient Kit Dave Lennox Signature R...

Страница 24: ...ng mode to cooling mode to maintain predetermined comfort settings Temperature Indicator The temperature indicator displays the actual room temperature Programmable Thermostats Your Lennox system may be controlled by a programmable thermostat These thermostats provide the added feature of programmable time of day setpoints for both heating and cooling Refer to the user s information manual provide...

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