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PURON

(R--410A) REFRIGERANT QUICK REFERENCE GUIDE

Puron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing equipment and replacement

components are designed to operate with Puron refrigerant

Puron refrigerant cylinders are rose colored.

Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.

Puron refrigerant systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose

when charging into suction line with compressor operating

Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low--side retard.

Use hoses with 700 psig service pressure rating.

Leak detectors should be designed to detect HFC refrigerant.

Puron refrigerant, as with other HFCs, is only compatible with POE oils.

Vacuum pumps will not remove moisture from oil.

Do not use liquid--line filter driers with rated working pressures less than 600 psig.

Do not leave Puron suction line filter driers in line longer than 72 hours.

Do not install a suction--line filter drier in liquid line.

POE oils absorb moisture rapidly. Do not expose oil to atmosphere.

POE oils may cause damage to certain plastics and roofing materials.

Wrap all filter driers and service valves with wet cloth when brazing.

A factory approved liquid--line filter drier is required on every unit.

Do NOT use an R--22 TXV.

If indoor unit is equipped with an R--22 TXV or piston metering device, it must be changed to a hard shutoff Puron TXV.

Never open system to atmosphere while it is under a vacuum.

When system must be opened for service, recover refrigerant, evacuate then break vacuum with dry nitrogen and replace filter driers.

Evacuate to 500 microns prior to recharging.

Do not vent Puron refrigerant into the atmosphere.

Do not use capillary tube coils.

Observe all

warnings

cautions

, and

bold

text.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231

Edition Date: 09/15

Replaces: II114CNA--- 02

Catalog No. II114CNA---CNC---03

Summary of Contents for 105A

Page 1: ...CTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Before installing modifying or servicing system main electrical disconnect switch must be in the OFF position There may be more than 1 disconnect switch Lock out and tag switch with a suitable warning label EXPLOSION HAZARD Failure to follow this warning could result in death serious personal injury and or...

Page 2: ...rigerant piping and service Allow 24 in 609 6 mm clearance to service end of unit and 48 in 1219 2 mm above unit For proper airflow a 6 in 152 4 mm clearance on 1 side of unit and 12 in 304 8 mm on all remaining sides must be maintained Maintain a distance of 24 in 609 6 mm between units or 18 in 457 2 mm if no overhang within 12 ft 3 66 m Position so water snow or ice from roof or eaves cannot fa...

Page 3: ...g Set lengths between 50 and 200 ft 15 2 and 61 0 m horizontal or 20 ft 6 1 m vertical differential 250 ft 76 2 m Total Equivalent Length refer to the Residential Piping and Longline Guide line Air Conditioners and Heat Pumps using Puron refrigerant 3 For alternate liquid line options on 18 42 size units see Product Data or Residential Piping and Application Guideline Install Liquid Line Filter Dr...

Page 4: ...d line temperature is higher than indicated or reclaim refrigerant if temperature is lower Allow a tolerance of 3_F 1 7_C Units with Indoor Piston Units installed with indoor pistons require charging by the superheat method The following procedure is valid when indoor airflow is within 21 percent of its rated CFM 1 Operate unit a minimum of 15 minutes before checking charge 2 Measure suction press...

Page 5: ... 32 88 31 86 30 84 29 82 28 317 94 34 92 33 90 32 88 31 86 30 84 29 326 96 36 94 34 92 33 90 32 88 31 86 30 335 98 37 96 36 94 34 92 33 90 32 88 31 345 100 38 98 37 96 36 94 34 92 33 90 32 364 104 40 102 39 100 38 98 37 96 36 94 34 374 106 41 104 40 102 39 100 38 98 37 96 36 384 108 42 106 41 104 40 102 39 100 38 98 37 395 110 43 108 42 106 41 104 40 102 39 100 38 406 112 44 110 43 108 42 106 41 1...

Page 6: ...ing may occur Charge must be weighed in Note Superheat _F is at low side service port Allow a tolerance of 3_F 1 7_C Note Indoor dry bulb between 70_F and 80_F 21_C and 27_C Table 4 Required Suction Line Temperature SUPERHEAT TEMP _F SUCTION PRESSURE AT SERVICE PORT PSIG 107 8 112 2 116 8 121 2 126 130 8 138 8 140 8 145 8 0 35 37 39 41 43 45 47 49 51 2 37 39 41 43 45 47 49 51 53 4 39 41 43 45 47 4...

Page 7: ...ds Use furnace transformer fan coil transformer or accessory transformer for control power 24v 40va minimum NOTE Use of available 24v accessories may exceed the minimum 40va power requirement Determine total transformer loading and increase the transformer capacity or split the load with an accessory transformer as required Final Wiring Check IMPORTANT Check factory wiring and field wire connectio...

Page 8: ...arge will be needed for longer line sets charge unit to nameplate subcooling Unit Size 15 ft 4 57 m Line Set Charge lb kg 113A 114CNA 114CNC 105A 18 4 10 1 86 4 77 2 16 4 5 2 04 4 87 2 21 24 4 22 1 91 4 20 1 91 4 20 1 91 4 60 2 09 30 4 90 2 22 5 67 2 57 5 67 2 57 5 67 2 57 36 5 00 2 27 5 42 2 46 5 42 2 46 6 40 2 90 42 6 07 2 75 7 90 3 58 7 90 3 58 7 46 3 38 48 7 00 3 18 8 31 3 77 8 31 3 77 8 31 3 ...

Page 9: ...trol Yes No No For tubing line sets between 50 and 200 ft 15 24 and 60 96 m and or 20 ft 6 10 m vertical differential refer to Residential Piping and Longline Guideline Additional requirement for Low Ambient Controller full modulation feature MotorMasterr Control 24 VAC HOT 24 VAC COM R C G W W1 Y Y2 R C C A C THERMOSTAT Typical FAN COIL AIR CONDITIONER G W2 HEAT STAGE 1 COOL STAGE 1 INDOOR FAN 24...

Page 10: ...uction line filter driers in line longer than 72 hours S Do not install a suction line filter drier in liquid line S POE oils absorb moisture rapidly Do not expose oil to atmosphere S POE oils may cause damage to certain plastics and roofing materials S Wrap all filter driers and service valves with wet cloth when brazing S A factory approved liquid line filter drier is required on every unit S Do...

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