Installation guide

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to the Expertg[

Installation Instructions

Fig, 1 - 24ABR*

*Shown with dense coil guard option

A05341

NOTE: Read the entire instruction manual before starting the

installation.

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS ....................... 2

INSTALLATION RECOMMENDATIONS ............. 2

INSTALLATION .............................. 3 - 10

Step 1 - Check Equipment & Jobsite ............... 3

Step 2 - Install on Solid Pad ...................... 3

Step 3 - Clearance Requirements .................. 3

Step 4 - Operating Ambient ...................... 3

Step 5 - Install TXV ......................... 3 - 4

Step 6 - Make Piping Connections .............. 4 - 7

Step 7 - Make Electrical Connections ............ 7 - 8

Step 8 - Compressor Crankcase Heater ............. 8

Step 9- Install Electrical Accessories .............. 8

Step 10 - Start-Up ........................... 8 - 9

Step 11 - Check Charge ......................... 10

Step 12 - Final Checks .......................... 10

CARE AND MAINTENANCE ...................... 10

Summary of content (10 pages)

PAGE 1
to the Expertg[ rn Installation Instructions TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS INSTALLATION ....................... INSTALLATION Equipment Check Install on Solid Pad ...................... 3 Step 3 - Clearance Requirements 3 Step 4 - Operating Ambient Step 5 - Install TXV ......................... Step 6 - Make Piping Connections Step 7 - Make Electrical Step 8 - Compressor Step 9- Install NOTE: Read installation.
PAGE 2
SAFETY CONSIDERATIONS Improperinstallation,adjustment, alteration,service, maintenance, orusecancause explosion, fire.electrical shock, or otherconditions whichmaycause death, personal injury,or property damage. Consult aqualified installer, service agency, or yourdistributor or branch forinformation or assistance. The qualified installer oragency mustusefactory-authorized kitsor accessories when modifying thisproduct. Refer totheindividual instructions packaged withthekitsoraccessories when installing.
PAGE 3
INSTALLATION STEP 1 --Check UNPACK Equipment and Job Site The 4 --Operating minimum Ambient outdoor operating 55°F. and the maximum mode is 125°F. UNIT Move to final location. unit.
PAGE 4
_10 STEP O'CLOCK 6 --Make Piping Connections 2 O'CLOCK 7 __ _ SENSING BULB PERSONAL HAZARD INJURY AND ENVIRONMENTAL TRAP SUCTION Failure to follow injury or death. TUBE 8 O'CLOCK could result in personal Relieve pressure and recover all refrigerant before system repair or final unit disposal. Use all service ports and open all flow-control devices, including solenoid valves. 4 O'CLOCK 7/8 IN, OD & SMALLER this warning LARGER THAN 7/8 IN.
PAGE 5
Sweat Connection Use refrigeration grade tubing. Service valves factory and ready for brazing. After wrapping a wet cloth, braze sweat connections using are closed from service valve with industry accepted methods and materials. Consult local code requirements. Refrigerant tubing and indoor coil are now ready for leak testing. UNIT DAMAGE HAZARD This check should include all field and factory joints. Failure to follow this caution may result in equipment damage or improper operation.
PAGE 6
Install Liquid-Line UNIT Failure damage DAMAGE Filter Drier Indoor HAZARD to follow this caution or improper operation. Installation of filter Evacuate drier Refrigerant UNIT DAMAGE may result in liquid in equipment line is required. tube to the indoor 4. Connect 5-in. coil. coil. HAZARD result Never use the system compressor as a vacuum indoor should tubes and coil used if the procedure outlined below break a vacuum with dry nitrogen.
PAGE 7
I EVACUATE I [BREAK VACUUM WITH DRY NITROGEN ELECTRICAL SHOCK Failure to follow injury or death. IEVACUATE I IEVACUATE I TIGHT, FOR (IF IT HOLDS DRY Connect Ground Connect ground safety. Connect SYSTEM could result in personal and Power Wires wire to ground power wiring connection to contactor in control as shown box for in Fig. 8. DISCONNECT_q PER N.E.C.
PAGE 8
STEP 10 --Start-Up UNIT DAMAGE HAZARD UNIT Failure to follow this caution may result in equipment damage or improper operation. Ensure compressor rotation 3-phase scroll compressors sensitive. • A flash LED on phase monitor reverse rotation. • Disconnect n Route Control 24-v • Do not operate to be energized. rotation, through control wiring grommet and the control voltage wire to avoid excessive wires, All wiring must be NEC incoming power leads.
PAGE 9
A/C Typical THERMOSTAT FURNACE 24 MAC HOT E_-- 24 MAC COM [_"-- A/C THERMOSTAT AIR AIR CONDITIONER 24 MAC HOT "--_ 24 VAO OOM -- Typical FAN COIL CONDITIONER E_ " ----E_ HEATSTAGE1 r-_-qi i D OOOLSTAGE1 Fq-- "---E]-,NOOOREAN E}---"--D 10 v l HEAT STAGE 1 COOL STAGE 1 INDOOR FAN Eli-- a_D A02326 LEGEND 24-V FACTORY WIRING 24-V FIELD WIRING FIELD SPLICE CONNECTION © CONTACTOR A97368 Fig.
PAGE 10
STEP 11 --Check Factory charge Table 4--Required Charge and charging method are shown on unit Liquid Pressure at Service Valve information plate. To check charge, follow the procedure below and the subcooling temperature required as shown on charging table on unit.