Instruction/ maintenance manual of the product 550A Bryant
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NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since the last issue. SAFETY CONSIDERATIONS Improper installation, adjustment, alteration,.
can be no deviation. Consult the Application Guideline and Service Manual — Air Conditioners and Heat Pumps Using Pu- ron ® Refrigerant to obtain required unit changes for specific applications and for R-22 retrofit. I. CHECK EQUIPMENT AND JOB SITE A.
INSTALLING TXV IN PLACE OF PISTON 1. Pump system down to 2 psig and recover refrigerant. 2. Remove hex nut from piston body. Use backup wrench on fan coils. 3. Remove and discard factory-installed piston. Be sure teflon seal is in place. 4. Reinstall hex nut.
VII. MAKE PIPING CONNECTIONS WARNING: Relieve pressure and recover all refrigerant before system repair or final unit disposal to avoid personal injury or death. Use all service ports and open all flow-control devices, including solenoid valves. CAUTION: Do not leave system open to atmosphere any longer than minimum required for installation.
2. Braze filter drier between connector tube and liquid tube to indoor coil. Flow arrow must point towards indoor coil. C. REFRIGERANT TUBING Connect vapor tube to fitting on outdoor unit vapor service valves. Connect liquid tube to filter drier. (See Fig.
NOTE: Install branch circuit disconnect of adequate size per NEC to handle unit starting current. Locate disconnect within sight from and readily accessible from unit, per Section 440-14 of NEC. A. ROUTE GROUND AND POWER WIRES Remove access panel to gain access to unit wiring.
To calculate additional charge requried for a 25-ft line set: 25 ft - 15 ft = 10 ft X 0.6 oz/f t=6o zo f additional charge. B. COOLING ONLY PROCEDURE UNITS WITH COOLING MODE PURON ® TXV Units installed with cooling mode TXV require charging by the subcooling method.
TABLE 3 — REQUIRED LIQUID-LINE TEMPERATURE ( ° F) LIQUID PRESSURE AT SERVICE VALVE (PSIG) REQUIRED SUBCOOLING TEMPERATURE ( ° F) 8 1 01 21 41 61 8 189 58 56 54 52 50 48 195 60 58 56 54 52 50 202 6.
TABLE 5 — REQUIRED SUCTION-LINE TEMPERATURE SUPERHEAT TEMP ( ° F) SUCTION PRESSURE AT SERVICE PORT (PSIG) 107.8 112.2 116.8 121.2 126.0 130.8 138.8 140.
PURON ®— 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 ® . • Puron ® refrigerant cylinders are rose colored.
24 VAC HOT 24 VAC COM R C G W/W1 Y/Y2 R C C BRYANT NON-PROGRAMMABLE THERMOSTAT MODEL AC SINGLE-STAGE FURNACE AIR CONDITIONER SEE NOTE 2 Y G W HEAT STAGE 1 COOL STAGE 1 INDOOR FAN A97359 24 VAC HOT R G.
24 VAC HOT R C W/W1 Y/Y2 G R DH W2 W1 Y/Y2 BRYANT NON-PROGRAMMABLE THERMOSTAT MODEL AC FK4C FAN COIL AIR CONDITIONER C INDOOR FAN HEAT STAGE 1 COOL STAGE 1 24 VAC COM Y1 C SEE NOTE 2 G O J2 JUMPER J1 .
An important point after buying a device Bryant 550A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bryant 550A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bryant 550A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 550A you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 550A will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 550A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bryant 550A.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 550A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 550A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
