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Manual 2100-707D 

Page 

20 of 39

START UP

General

1.  Use separate service equipment to avoid cross 

contamination of oil and refrigerants.

2.  Use recovery equipment rated for R-410A 

refrigerant.

3.  Use manifold gauges rated for R-410A (800 

psi/250 psi low).

4.  R-410A is a binary blend of HFC-32 and HFC-125.
5.  R-410A is nearly azeotropic—similar to R-22 and 

R-12. Although nearly azeotropic, charge with 
liquid refrigerant.

6.  R-410A operates at 40-70% higher pressure 

than  R-22 and systems designed for R-22 cannot 
withstand this higher pressure.

7.  R-410A has an ozone depletion potential of zero, 

but must be reclaimed due to its global warming 
potential.

8.  R-410A compressors use polyol ester oil.
9.  Polyol ester oil is hygroscopic; it will rapidly absorb 

moisture and strongly hold this moisture in the oil.

10. A liquid line dryer must be used—even a deep 

vacuum will not separate moisture from the oil.

11. Limit atmospheric exposure to 15 minutes.
12. If compressor removal is necessary, always plug 

compressor immediately after removal. Purge with 
small amount of nitrogen when inserting plugs.

Topping Off System Charge

If a leak has occurred in the system, Bard 
Manufacturing recommends reclaiming, evacuating 
(see criteria above) and charging to the nameplate 
charge. If done correctly, topping off the system charge 
can be done without problems.
With R-410A, there are no significant changes in the 
refrigerant composition during multiple leaks and 
recharges. R-410A refrigerant is close to being an 
azeotropic blend (it behaves like a pure compound 
or single component refrigerant). The remaining 
refrigerant charge, in the system, may be used after 
leaks have occurred and then “top-off” the charge by 
utilizing the pressure charts on the inner control panel 
cover as a guideline.

REMEMBER: 

When adding R-410A refrigerant, it must 

come out of the charging cylinder/tank as a liquid to 

avoid any fractionation, and to ensure optimal system 

performance. Refer to instructions for the cylinder that 

is being utilized for proper method of liquid extraction.

Safety Practices

1.  Never mix R-410A with other refrigerants.
2.  Use gloves and safety glasses. Polyol ester oils can 

be irritating to the skin, and liquid refrigerant will 
freeze the skin.

3.  Never use air and R-410A to leak check; the 

mixture may become flammable.

4.  Do not inhale R-410A—the vapor attacks 

the nervous system, creating dizziness, loss 
of coordination and slurred speech. Cardiac 
irregularities, unconsciousness and ultimate death 
can result from breathing this concentration.

5.  Do not burn R-410A. This decomposition produces 

hazardous vapors. Evacuate the area if exposed.

6.  Use only cylinders rated DOT4BA/4BW 400.
7.  Never fill cylinders over 80% of total capacity.
8.  Store cylinders in a cool area, out of direct 

sunlight.

9.  Never heat cylinders above 125°F.
10. Never trap liquid R-410A in manifold sets, gauge 

lines or cylinders. R-410A expands significantly at 
warmer temperatures. Once a cylinder or line is full 
of liquid, any further rise in temperature will cause 
it to burst.

Important Installer Note

For improved start up performance, wash the indoor 
coil with a dishwashing detergent.

High Pressure Switch

All J**A/J**L wall-mounted air conditioner series 
models are supplied with a remote reset for the high 
and low pressure switch. If tripped, the pressure switch 
may be reset by turning the thermostat off then back 
on again. High pressure switch settings: Opens 650 +/– 
15 PSI, Closes 520 +/– 15 PSI.

Three Phase Scroll Compresser Start 

Up Information

Scroll compressors, like several other types of 
compressors, will only compress in one rotational 
direction. Direction of rotation is not an issue with 
single phase compressors since they will always start 
and run in the proper direction.

These units require R-410A refrigerant and 

polyol ester oil.

Summary of Contents for J AB Series

Page 1: ...ioner Models INSTALLATION INSTRUCTIONS J18AB A J24AB A J24AB B J24AB C J30AB A J30AB B J30AB C J36AB A J36AB B J36AB C Manual 2100 707D Supersedes 2100 707C Date 2 3 21 J18LB A J24LB A J24LB B J30LB A...

Page 2: ...on Make Timer 22 Short Cycle Delay on Break 22 Low Pressure Detection 23 High Pressure Detection 23 Test Mode 23 Brownout Protection with Adjustment 23 Pressure Service Ports 23 Service 24 Troublesho...

Page 3: ...ne 212 642 4900 Fax 212 302 1286 ASHRAE American Society of Heating Refrigeration and Air Conditioning Engineers Inc 1791 Tullie Circle N E Atlanta GA 30329 2305 Telephone 404 636 8400 Fax 404 321 547...

Page 4: ...unit These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation Not...

Page 5: ...metallic return air grille is required with installations not requiring a return air duct The spacing between louvers on the grille shall not be larger than 5 8 Any grille that meets with 5 8 louver c...

Page 6: ...hinder unit installation and servicing including outdoor electrical conduits junction boxes wall drains vent hoods windows doors overhangs and posts Condensate Water Drainage Review all codes and requ...

Page 7: ...ructure through ventilation options including fresh air dampers ventilators economizers and energy recovery ventilators Be sure to install the return grille with the louvers pointed downward towards t...

Page 8: ...ark bolt hole locations and bottom mounting bracket location Install bottom mounting bracket with field supplied fasteners to wall if it is to be used optional Bracket must be level and installed in t...

Page 9: ...unit and J A right side compressor and controls for right unit See Specifications Sheet S3582 TABLE 1 Clearance Required for Service Access and Adequate Condenser Airflow Model Left Side Right Side D...

Page 10: ...lectrical Entrances Side Wall Supply Air Opening Shipping Location Brackets Return Air Opening Built In Mounting Top Rain Flashing Bottom Installation Bracket Back View 44 O E R S S S S S T N B P M L...

Page 11: ...and Hole Location View Right Side View TOP FLASHING AT TIME OF INSTALLATION OPENING MIS 3157 A ENTIRE LENGTH OF TOP TOP NOTES OF CAULKING ALONG PANEL FOAM AIR SEAL WALL STRUCTURE WALL HEATER ACCESS RA...

Page 12: ...NOTES 1 4 CLEARANCE ON ALL HEATER ACCESS TOP FLASHING AT TIME OF INSTALLATION THE SIDE MOUNTING FLANGES AND UNDER SILICONE CAULKING BE PLACED BEHIND IS ON OPPOSITE LEFT SIDE OPENING CONTROLS AND HEAT...

Page 13: ...SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1 4 CLEARANCE TO COMBUSTIBLE SURFACES Fire hazard Maintain minimum 1 4 clearance between the supply air duct and combustible materials in...

Page 14: ...CTORY SUPPLIED RAIN FLASHING SUPPLY AIR MIS 548 A SIDE VIEW I A C K E 1 000 B 1 000 SUPPLY DUCT OVER FRAME INTERIOR FINISHED WALL ALL AROUND DUCT FRAMING MATERIAL EXTERIOR FINISH WALL OPENING FOR ACTU...

Page 15: ...best unit performance and efficiency Review duct grille or return duct work Avoid using restrictive duct work to Unit Mount Return Grille Fixed Blade Wall wall Outside Wall Ducted Installations Adjus...

Page 16: ...or airflow amount and extending the run time to help extract more humidity during cooling operation In heating mode the reduced airflow provides a warmer supply air temperature creating more comfortab...

Page 17: ...ration cycles the condenser fan on off to maintain desired liquid pressure while modulating LAC operation is factory adjusted and slows the condenser fan speed rpm Outdoor Temperature Switch and Freez...

Page 18: ...6 B 4 5 7 If not equipped with a ventilation option to plug in a jumper plug must be installed 4 2 8 9 TABLE 6 Wall Thermostats Part Number Predominate Features 8403 060 1120 445 3 stage Cool 3 stage...

Page 19: ...ntrol Optional for ECON Only See vent installation manual 6 For vent operation add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wi...

Page 20: ...refrigerant it must come out of the charging cylinder tank as a liquid to avoid any fractionation and to ensure optimal system performance Refer to instructions for the cylinder that is being utilized...

Page 21: ...filters at all times and also not to needlessly close off supply and return air registers This reduces airflow through the system which shortens equipment service life as well as increasing operating...

Page 22: ...ied with a factory installed vent package it will be plugged in but the jumper plug will also be tethered next to the connection for troubleshooting purposes if necessary Compressor Control Module The...

Page 23: ...mers can be set by DIP switches in order to delay signaling a power brownout for a specific length of time after compressor contactor is energized This allows the compressor a time period to start eve...

Page 24: ...3302 PA13362 A B PA13422 A B C PA13482 A B C PA13602 A B C contain the X13 Series Motors TROUBLESHOOTING GE X13 SERIES ECM2 3 MOTORS If the Motor is Running 1 It is normal for the motor to rock back a...

Page 25: ...utput 24VAC Common 24VAC Common 24VAC R Signal through thermostat output 2 If the motor has proper high voltage and ground at the L L1 G N L2 connections then continue with the Model SelecTech Communi...

Page 26: ...unit to the serial plate charge Removal of Fan Shroud 1 Disconnect all power to the unit 2 Remove the screws holding both grilles one on each side of unit and remove grilles 3 Remove nine screws hold...

Page 27: ...de High Side 132 315 136 337 140 361 143 386 146 412 148 439 151 467 153 495 154 525 156 556 157 587 159 626 J24A L 75 62 Low Side High Side 123 302 125 323 127 344 129 367 132 391 134 415 136 441 137...

Page 28: ...138 409 140 436 143 463 145 492 147 522 149 552 151 584 154 623 W24A L 75 62 Low Side High Side 116 296 118 318 120 339 122 362 123 385 125 410 128 434 130 460 132 488 135 515 137 544 139 579 80 67 Lo...

Page 29: ...3 51 25 25 35 60 10 10 8 6 10 10 10 10 J36AB C00 C0Z C06 C09 C15 460 3 1 1 1 1 11 12 17 26 15 15 20 30 14 14 14 12 14 14 14 12 These Minimum Circuit Ampacity values are to be used for sizing the field...

Page 30: ...460 3 1 1 1 9 15 24 15 15 25 14 14 10 14 14 10 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors Refer to the National Electrical code latest version Article 3...

Page 31: ...black wire on the blower speed terminal block to either MED or HI Refer to Table 14 on page 33 for the corresponding airflow of each tap Set the unit duct static based on the highest airflow that the...

Page 32: ...s used when Balanced Climate is called for by energizing the Y1 terminal of the low voltage terminal block with 24VAC Speed tap 2 is overridden if taps 3 4 or 5 are energized Speed Tap 3 Default LO Co...

Page 33: ...770 755 910 885 955 930 0 25 740 730 890 865 935 910 0 30 715 705 870 840 915 885 0 40 670 650 825 805 870 845 0 50 630 585 785 765 825 805 J30AB J30LB 0 00 830 825 1050 1020 1170 1135 1200 1205 0 10...

Page 34: ...igh Low A0Z A05 A08 A10 A15 50 50 50 30 50 50 50 40 40 50 50 50 35 35 B0Z B06 B09 B15 50 40 50 50 50 35 50 40 50 30 C0Z C06 C09 C15 50 50 50 50 50 45 50 50 40 35 TABLE 16 Electric Heat Models 240V 1 2...

Page 35: ...cription CMC 15 Start Kit 230V 1 Phase X X FAD NE2 Fresh Air Damper No Exhaust X ECONS 3 Economizer School X ECONWD 2 Economizer Bldg Equipment Enthalpy or Temperature X FAD NE3 Fresh Air Damper No Ex...

Page 36: ...HW2TAB A08 X EHW2TA A10 X X EHW2TA B06 X EHWH24B C06 X EHW3TA A05 X X EHW3TA A08 X X EHW3TA A10 X EHW3TAB A10 X EHW3TA A15 X EHW3TAB A15 X EHW30A B06 X EHW3TA B06 X EHW3TA B09 X EHW3TAB B09 X EHW3TA B...

Page 37: ...1TAB A08L X EHW2TAB A05L X EHW2TAB A08L X EHW2TA A10L X X EHW2TA B06L X EHW3TA A05L X X EHW3TA A08L X EHW3TA A10L X EHW3TAB A10L X EHW3TA A15L X X EHW3TA B09L X EHW3TAB B09L X EHW3TA B15L X EHW3TAB B1...

Page 38: ...Manual 2100 707D Page 38 of 39 GRAPH 1 J18 B FAD NE2 3 W O Exhaust Ventilation Delivery GRAPH 2 J24 B FAD NE2 3 W O Exhaust Ventilation Delivery...

Page 39: ...Manual 2100 707D Page 39 of 39 GRAPH 3 J30 B FAD NE2 3 W O Exhaust Ventilation Delivery GRAPH 4 J36 B FAD NE2 3 W O Exhaust Ventilation Delivery...

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