Lennox XC21-024 Скачать руководство пользователя страница 5

Page 5

SL18XC1 SERIES

B. ROUTE HIGH VOLTAGE AND GROUND WIRES

Any excess high voltage field wiring should be trimmed and secured away from any low voltage field wiring. To facilitate a conduit, a
cutout is located in the bottom of the control box. Connect conduit to the control box using a proper conduit fitting.

CONTROL BOX

GROUND LUG*

CONTACTOR

WATERTIGHT

CONDUIT FITTING

WATERTIGHT 

FLEXIBLE CONDUIT

TO SERVICE

DISCONNECT BOX

ACCESS VIEW

ELECTRICAL

INLET (HIGH

VOLTAGE)

WIRING ENTRY

POINTS

ELECTRICAL INLET (CONTROL WIRING —
LOW VOLTAGE). USE BUSHING
PROVIDED IN BAG ASSEMBLY HERE.

* Attach field-provided 
green ground wire to
provided ground lug.

NOTE - Grounding wire
must be a single, contin­
uous wire run from unit
ground lug to earth
ground. 

DO NOT splice

wire.

FIGURE 7

STEP 2 -- ELECTRICAL (Continued) -- Outdoor Control (A175) Jumpers and Terminals

 

55

50

DEGREE

TARGET

45

DEGREE

TARGET

40

DEGREE

TARGET (DEFAULT)

55 50 45 40

55 50 45

40

55 50 45 40

55 50 45

40

DEGREE

TARGET

30

0

30

SECOND DELAY 

SECOND DELAY

0

CUT FOR HUMIDITROL

®

 - ENHANCED

DEHUMIFICATION ACCESSORY (EDA)
APPLICATIONS.

SECOND-STAGE LOCK-IN

TEMPERATURE

J4 - COMPRESSOR

SHIFT DELAY

DS TO R LINK - EDA
APPLICATION

J2 - SECOND-STAGE

LOCK-IN

TEMPERATURE

(DEFAULT)

7-SEGMENT DISPLAY

PUSH BUTTON

NOTE - LINK NOT APPLICABLE TO SINGLE-STAGE
UNIT. CUTTING LINK WILL HAVE NO AFFECT ON
OPERATION OF SINGLE-STAGE UNITS

.

MAX

90

DEGREE

TARGET

70

DEGREE

TARGET

70

DEGREE

TARGET

90

70

50

TARGET

90

70

50

90

70

50

MAX

90 70 50

J1 - DEFROST TERMINATION
TEMPERATURE

J3 - DEFROST AUTO

OFF

ON

JUMPER ON  PINS 1 AND 2

DEFROST AUTO ENABLED

DEFROST AUTO DISABLED (DEFAULT) 

90

70

50

(DEFAULT)

(DEFAULT WHEN JUMPER IS 

REMOVED OR MISSING)

90

MAX

MAX

MAX

MAX

JUMPER ON  PINS 2 AND 3

(HEAT PUMP ONLY)

 

(TWO-STAGE HEAT PUMP ONLY)

(TWO-STAGE UNIT ONLY)

(HEAT PUMP ONLY)

FIGURE 8

Содержание XC21-024

Страница 1: ...RUCTIONS Dave Lennox Signature Collection SL18XC1 System AIR CONDITIONERS 507353 01 7 2018 WARNING Improper installation adjustment alteration service or maintenance can cause property damage personal...

Страница 2: ...subject to damage e g being bent or scratched While handling or stowing the panels consider any weather conditions especially wind that may cause panels to be blown around and damaged CAUTION As with...

Страница 3: ...e and uneven surfaces Concrete slab use two plastic anchors hole drill 1 4 COIL BASE PAN CORNER POST STABILIZING BRACKET 18 GAUGE METAL 2 WIDTH HEIGHT AS REQUIRED 10 X 1 2 LONG SELF DRILLING SHEET MET...

Страница 4: ...erforming any service procedure to neutralize electrostatic charge NOTE For proper voltages select control wires gauge per table below WIRE RUN LENGTH AWG INSULATION TYPE LESS THAN 100 30 METERS 18 TE...

Страница 5: ...ontinued Outdoor Control A175 Jumpers and Terminals 55 50 DEGREE TARGET 45 DEGREE TARGET 40 DEGREE TARGET DEFAULT 55 50 45 40 55 50 45 40 55 50 45 40 55 50 45 40 DEGREE TARGET 30 0 30 SECOND DELAY SEC...

Страница 6: ...o stage electric heat cut factory installed metal link between W1 and W2 Then connect thermostat wire between the air handler control s W2 and the thermostat s W2 terminal 5 Cut on board link clippabl...

Страница 7: ...existing traps Polyol es ter POE oils are used in Lennox units charged with HFC 410A refrigerant Residual mineral oil can act as an insulator preventing proper heat transfer It can also clog the expa...

Страница 8: ...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 DIS...

Страница 9: ...ort nitrogen flow will have an exit point NITROGEN HIGH LOW B A C PIPING PANEL REMOVAL PREPARING LINE SET CAP AND CORE REMOVAL Remove piping panel to access service valves Cut ends of the refrigerant...

Страница 10: ...ter saturated cloths under the valve body to protect the base paint 4FLOW NITROGEN Flow regulated nitrogen at 1 to 2 psig through the refrigeration gauge set into the valve stem port connection on the...

Страница 11: ...SION VALVE KIT MATCH UPS AND APPLICATION INFORMATION 1 REMOVE THE FIELD PROVIDED FITTING THAT TEMPORARILY RECON NECTED THE LIQUID LINE TO THE INDOOR UNIT S DISTRIBUTOR ASSEM BLY 2 INSTALL ONE OF THE P...

Страница 12: ...linder of HFC 410A refrigerant to the center port of the manifold gauge set Open the valve on the HFC 410A cylinder vapor only B Open the high pressure side of the manifold to allow HFC 410A into the...

Страница 13: ...IGH LOW NITROGEN CONNECT GAUGE SET A B C D LINE SET AND INDOOR COIL NOTE Remove cores from service valves if not already done FIGURE 16 EVACUATE LINE SET AND INDOOR COIL The unit is shipped with a fac...

Страница 14: ...rigerant Open the mani fold gauge valve 1 to 2 psig in order to release the vac uum in the line set and indoor unit 9 Perform the following S Close manifold gauge valves S Shut off HFC 410A cylinder S...

Страница 15: ...and clean as neces sary 4 Inspect the condition of refrigerant piping and confirm that pipes are not rubbing copper to copper Also check the condition of the insulation on the refrigerant lines Repair...

Страница 16: ...Up and Performance Checklist Customer Address Indoor Unit Model Serial Outdoor Unit Model Serial Solar Module Mfg and Model Serial Notes START UP CHECKS Refrigerant Type Rated Load Amps Actual Amps Ra...

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