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Lennox Merit 13ACX-018-230, Руководство по установке

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Lennox Merit 13ACX-018-230 Скачать руководство пользователя страница 15

Page 15

13ACX SERIES

13ACX Start-Up and Performance Checklist

Customer 

Address

Indoor Unit Model

Serial

Outdoor Unit Model

Serial

Notes:

START UP CHECKS

Refrigerant Type:

Rated Load Amps: 

Actual Amps

Rated Volts

Actual Volts

Condenser Fan Full Load Amps

Actual Amps:

COOLING MODE

Suction Pressure:

 

Liquid Pressure:

Supply Air

 Temperature:

Ambient 

Temperature:

Return Air: 

Temperature:

System Refrigerant Charge (Refer to manufacturer's information on unit or installation instructions for required
subcooling and approach temperatures.)

Subcooling:

A

—

B

=

SUBCOOLING

 Saturated Condensing Temperature (A)

minus

 Liquid Line Temperature (B)

Approach:

A

—

B

=

APPROACH

Liquid Line Temperature (A)

minus 

Outdoor Air Temperature (B)

Indoor Coil Temperature Drop (18 to 22°F)

A

—

B

= COIL TEMP DROP

Return Air Temperature (A)

minus

 Supply Air Temperature (B)

Содержание Merit 13ACX-018-230

Страница 1: ... Units AIR CONDITIONER 506945 01 5 2013 Supersedes 7 2012 WARNING Improper installation adjustment alteration service or maintenance can cause personal injury loss of life or damage to property Installation and service must be performed by a licensed professional installer or equivalent or a service agency CAUTION Before attempting to perform any service or maintenance turn the electrical power to...

Страница 2: ...ICE Roof Damage This system contains both refrigerant and oil Some rubber roofing material may absorb oil causing the rubber to degrade Failure to follow this notice could result in damage to roof surface IMPORTANT This model is designed for use in check expansion valve systems only An indoor expansion valve ap proved for use with HFC 410A refrigerant must be or dered separately and installed prio...

Страница 3: ...THE LIQUID LINE TO THE VAPOR LINE FLOOR JOIST OR ROOF RAFTER REFRIGERANT LINE SET INSTALLING HORIZONTAL RUNS NOTE Similar installation practices should be used if line set is to be installed on exterior of outside wall PVC PIPE FIBERGLASS INSULATION CAULK OUTSIDE WALL VAPOR LINE WRAPPED WITH ARMAFLEX LIQUID LINE OUTSIDE WALL LIQUID LINE VAPOR LINE WOOD BLOCK BETWEEN STUDS STRAP WOOD BLOCK STRAP SL...

Страница 4: ...t that the refrigerant system be kept closed as much as possible DO NOT remove line set caps or service valve stub caps until you are ready to make connections IMPORTANT Some scroll compressors have an internal vacuum protector that will unload scrolls when suction pres sure goes below 20 psig A hissing sound will be heard when the compressor is running unloaded Protector will reset when low press...

Страница 5: ... Teflon rings H Use a field provided fitting to temporarily reconnect the liquid line to the indoor unit s liquid line orifice housing LOW HIGH EXISTING INDOOR UNIT GAUGE MANIFOLD CYLINDER CONTAINING CLEAN HCFC 22 TO BE USED FOR FLUSHING Positioned to deliver liquid refrigerant LIQUID LINE SERVICE VALVE INLET DISCHARGE TANK RETURN CLOSED OPENED RECOVERY CYLINDER RECOVERY MACHINE NEW OUTDOOR UNIT V...

Страница 6: ...nts and debur the ends The pipe must remain round Do not crimp end of the line Remove service cap and core from both the suction vapor and liquid line service ports 1 2 ANGLE TYPE SERVICE VALVE SERVICE PORT CORE SERVICE PORT CAP SERVICE PORT CORE SERVICE PORT CAP CUT AND DEBUR LINE SET SIZE MATCHES SERVICE VALVE CONNECTION COPPER TUBE STUB SERVICE VALVE CONNECTION REFRIGERANT LINE DO NOT CRIMP SER...

Страница 7: ...ed cloths WHEN BRAZING LINE SET TO SERVICE VALVES POINT FLAME AWAY FROM SERVICE VALVE PREPARATION FOR NEXT STEP 7 WRAP SERVICE VALVES To help protect service valve seals during brazing wrap water saturated cloths around service valve bodies and copper tube stubs Use additionalwater saturated cloths underneath the valve body to protect the base paint 4 FLOW NITROGEN Flow regulated nitrogen at 1 to ...

Страница 8: ...6 7 8 9 10 11 12 1 2 Turn SENSING BULB INSTALLATION EQUALIZER LINE INSTALLATION 1 2 3 4 5 6 7 8 9 10 11 12 1 8 Turn A Remove and discard either the flare seal cap or flare nut with copper flare seal bonnet from the equalizer line port on the vapor line as illustrated in the figure below B Remove the field provided fitting that temporarily reconnected the liquid line to the indoor unit s distributo...

Страница 9: ... indoor unit E After a few minutes open one of the service valve ports and verify that the refrigerant added to the system earlier is measurable with a leak detector F After leak testing disconnect gauges from service ports After the line set has been connected to the indoor and outdoor units check the line set connections and indoor unit for leaks Use the following procedure to test for leaks A C...

Страница 10: ...utting off the vacuum pump and closing the manifold gauge valves F When the absolute pressure requirement above has been met disconnect the manifold hose from the vacuum pump and connect it to a cylinder of HFC 410A positioned to deliver liquid refrigerant Open the manifold gauge valve 1 to 2 psig in order to release the vacuum in the line set and indoor unit G Perform the following A Connect low ...

Страница 11: ... damage as a result of slugging CAUTION ELECTROSTATIC DISCHARGE ESD Precautions and Procedures Electrostatic discharge can affect electronic components Take care during unit installation and service to protect the unit s electroniccontrols Precautionswill help to avoid control exposure to electrostatic dischargebyputtingthe unit the control and the technician at the same electrostatic potential To...

Страница 12: ...binding 2 Inspect all factory and field installed wiring for loose connections 3 After evacuation is complete open the liquid line and suction line service valve stems to release the refrigerant charge contained in outdoor unit into the system 4 Replace the stem caps and tighten to the value listed in table 3 5 Check voltage supply at the disconnect switch The voltage must be within the range list...

Страница 13: ...nsion 3 16 for liquid line valve sizes and 5 16 for vapor line valve sizes to back the stem out counterclockwise as far as it will go Operating Ball Type Service Valve 1 Remove stem cap with an appropriately sized wrench 2 Use an appropriately sized wrenched to open To open valve rotate stem counterclockwise 90 To close rotate stem clockwise 90 1 2 3 4 5 6 7 8 9 10 11 12 1 12 TURN To Access Servic...

Страница 14: ...nged exposure of the unit to treated water i e sprinkler systems soak ers waste water etc will corrode the surface of steel and aluminum parts diminish performance and af fect longevity of the unit Routine Maintenance In order to ensure peak performance your system must be properly maintained Clogged filters and blocked airflow prevent your unit from operating at its most efficient level NOTE The ...

Страница 15: ...ure Supply Air Temperature Ambient Temperature Return Air Temperature System Refrigerant Charge Refer to manufacturer s information on unit or installation instructions for required subcooling and approach temperatures Subcooling A B SUBCOOLING Saturated Condensing Temperature A minus Liquid Line Temperature B Approach A B APPROACH Liquid Line Temperature A minus Outdoor Air Temperature B Indoor C...

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