Instruction/ maintenance manual of the product Q42A1 Bard
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Manual 2100-522B Page 1 of 3 8 Bard Manufacturing Company , Inc. Bryan, Ohio 43506 Since 1914 . . . Moving ahead, just as planned. Manual: 2100-522B Supersedes: 2100-522A File: V ol II T ab 14 Date: 1.
Manual 2100-522B Page 2 of 3 8 CONTENTS Figures Figure 1 Unit Dimensions .......................................... 7 Figure 2 Air Seal Under Unit ...................................... 8 Figure 3 Removal of Unit From Skid ......................... 8 Figure 4 Unit on Appliance Cart for Moving .
Manual 2100-522B Page 3 of 3 8 GETTING OTHER INFORMA TION AND PUBLICA TIONS These publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard.
Manual 2100-522B Page 4 of 3 8 Q-T EC Series General Information Q-T EC MODEL NOMENCLATURE INTERNAL CONTROLS X - Standard • High Pressure Switch • Low Pressure Switch • Compressor Control Module.
Manual 2100-522B Page 5 of 3 8 TABLE 1 FACTORY BUILT-IN ELECTRIC HEAT TABLE s l e d o M A - 1 A 4 2 Q A - 1 A 0 3 QB - 1 A 4 2 QB - 1 A 0 3 QC - 1 A 4 2 QC - 1 A 0 3 Q A - 1 A 6 3 Q A - 1 A 2 4 Q A - .
Manual 2100-522B Page 6 of 3 8 1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes. 3 These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors.
Manual 2100-522B Page 7 of 3 8 FIGURE 1 UNIT DIMENSIONS.
Manual 2100-522B Page 8 of 3 8 SHIPPING DAMAGE Upon receipt of equipment, the carton should be checked for external signs of shipping damage. The skid must remain attached to the unit until the unit is ready for installation.
Manual 2100-522B Page 9 of 3 8 HANDLING UNIT AFTER REMOVAL FROM SKID The unit will have to be turned sideways and removed from the skid to fit through a 36" doorway.
Manual 2100-522B Page 10 of 3 8 FIGURE 6 DUCTED APPLICATION FIGURE 5 INSTALLATION WITH FREE BLOW PLENUM.
Manual 2100-522B Page 11 of 38 DUCT WORK All duct work must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing.
Manual 2100-522B Page 12 of 3 8 FRESH AIR INTAKE This unit is equipped with a fresh air damper assembly. The damper blade is locked in the closed position when the unit is shipped from the factory. To allow the damper to operate remove the two plastic locking pins, one on each end of the blade.
Manual 2100-522B Page 13 of 38 WATE R TRAP FIGURE 11 REAR DRAIN (TOP VIEW) W ALL (MAXIMUM 10" FOR REAR DRAIN) COUPLINGS NOT SHOWN BUT RECOMMENDED FOR EASE OF REMOV ABILITY FOR SERVICE.
Manual 2100-522B Page 14 of 3 8 MIS - 2469 DRAIN BOX WAL L SLEEVE OVERFL OW TUBE CAULK AROUND TUBE FIGURE 12A.
Manual 2100-522B Page 15 of 38 SUPPLIED W ITH DRAIN BOX KIT 3/4 " PLASTIC PIPE NIPPL E HORIZONTAL TO FLOOR) (TIGHTEN THREADS SO TEE IS THREADS) (APPLY TEFL ON TAPE TO REAR DRAIN CONNECTION IN Q/T.
Manual 2100-522B Page 16 of 3 8 REMOVE KNOCK-O UT FOR INDOOR DRAIN HOSE CONNECTOR MIS-2471 FIGURE 12C (If Used).
Manual 2100-522B Page 17 of 38 MIS-2472 DRAIN HOSE FROM INDOOR DRAIN PAN. MOVE HOSE FROM ATTACHMENT IN LOW ER DRAIN PAN AND SLIDE ONTO DRAIN BOX BARB FITTING, SECURING WITH SUPPL IED CLAMP IF O UTDOOR PAN IS BYPASSED.
Manual 2100-522B Page 18 of 3 8 Washer Sleeve Stud MIS -2689 Nut Lower Contr ol Panel Condenser Door (R emoved) Return Grille FIGURE 13A UNIT MOUNTING BOTTOM TRIM PIECE BOTTOM TRIM EXTENSION MOUNTING BRACKET SIDE TRIM (2 PCS.
Manual 2100-522B Page 19 of 38 INST ALLA TION INSTRUCTIONS MOUNTING THE UNIT When installing a Q-T EC unit near an interior wall on the left side, a minimum of 8 inches is required; 12 inches is preferred.
Manual 2100-522B Page 20 of 3 8 The standard Climate Control Option X is a remote thermostat connection terminal block. See Figure 17 for wiring diagram. Compatible thermostats are listed in Table 4. The Climate Control Option A is an electronic, non- programmable manual or auto changeover thermostat.
Manual 2100-522B Page 21 of 38 LOW VOLTAGE CONNECTIONS FOR DDC CONTROL Fan Only Energize G Cooling Mode Energize Y1, G 1st S tage Heating Energize G , W1 2nd S tate Heating Energize G , W2 (if employed) V entila tion Energize G , F GENERAL This unit is equipped with a variable speed ECM motor.
Manual 2100-522B Page 22 of 3 8 FIGURE 16 TABLE 4 WALL THERMOSTATS t a t s o m r e h Ts e r u t a e F t n a n i m o d e r P 0 6 0 - 3 0 4 8 ) 5 4 4 - 0 2 1 1 ( t a e H e g a t s 3 ; l o o C e g a t s .
Manual 2100-522B Page 23 of 38 FIGURE 17 REMOTE THERMOSTAT WIRING DIAGRAM “X” THERMOSTAT OPTION NOTE: On option X or A the CS2000A* (or other field provided means to control ventilation) must be used if any of the motorized ventilation options are installed.
Manual 2100-522B Page 24 of 3 8 FIGURE 18 UNIT MOUNTED THERMOSTAT WIRING DIAGRAM “A” THERMOSTAT OPTION NOTE: On option X or A the CS2000A* (or other field provided means to control ventilation) must be used if any of the motorized ventilation options are installed.
Manual 2100-522B Page 25 of 38 FIGURE 19 UNIT MOUNTED THERMOSTAT WIRING DIAGRAM “D” THERMOSTAT OPTION W1 /E 8403-060 "D" THERMOSTAT OPTION Y2 12 Plu g #2 Brown G Purpl e Orange C Blu e 9.
Manual 2100-522B Page 26 of 3 8 FIGURE 20 UNIT MOUNTED THERMOSTAT WIRING DIAGRAM “H” THERMOSTAT OPTION WITH CO 2 3 2 4 5 1 24VAC Analog Part #8201 -062 W1/E Y2 Orange Red/White Red Bla ck Blue 9 1.
Manual 2100-522B Page 27 of 38 ST ART UP THESE UNITS REQUIRE R-410A REFRIGERANT AND POL YOL ESTER OIL. GENERAL: 1. Use separate service equipment to avoid cross contamination of oil and refrigerants. 2. Use recovery equipment rated for R-410A refrigerant.
Manual 2100-522B Page 28 of 3 8 ST ART UP DESCRIPTION OF STANDARD EQUIPMENT High Pressure Switch Provides refrigerant circuit high pressure protection.
Manual 2100-522B Page 29 of 38 All three phase scroll compressors used in the Q-T EC series are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction.
Manual 2100-522B Page 30 of 3 8 6. Some service requires the need to remove the unit from the wall including replacement of the indoor coil and/or the outdoor coil.
Manual 2100-522B Page 31 of 38 3. Underneath the heat recovery cassette there is a power connector for the lower blower assembly. To disconnect this plug, the tabs on both sides of the plug must be squeezed to release the plug. While squeezing the tabs, pull the plug out of the socket.
Manual 2100-522B Page 32 of 3 8 FIGURE 21 FRESH AIR DAMPER REMOVAL MOUNTING SCREW.
Manual 2100-522B Page 33 of 38 FIGURE 22 QERV REMOVAL MOUNTING SCREWS FRONT FILL LOWER BLOWER ASSEMBL Y POWER CONNECTOR POWER CONNECTORS.
Manual 2100-522B Page 34 of 3 8 OPTIONAL CLIMATE CONTROLS SEQUENCE OF OPERATION The Climate Control Option A is an electronic, non- programmable manual or auto changeover thermostat. The thermostat may be manually set to heat or cool mode. The thermostat will maintain the temperature set on the thermostat in the mode in which it is set.
Manual 2100-522B Page 35 of 38 TROUBLESHOOTING GE ECM ™ MOT ORS CAUTION: Disconnect power from unit before removing or replacing connectors, or servicing motor. To avoid electric shock from the motor’s capacitors, disconnect power and wait at least 5 minutes before opening motor.
Manual 2100-522B Page 36 of 3 8 TROUBLESHOOTING GE ECM ™ MOT ORS CONT’D. Motor Motor OK when R > 100k ohm ECM 2.0 Only remove Hex Head Bolts Connector Orientation Between 4 and 8 o'clock Drip Loop Back of Control Figure 5 W i nding Test Figure 4 Note: Use the shorter bolts and alignment pin supplied when replacing an ECM 2.
Manual 2100-522B Page 37 of 38 FAN BLADE SETTING DIMENSIONS Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions in Table 5 be checked and blade adjusted in or out of the motor shaft accordingly.
Manual 2100-522B Page 38 of 3 8 Low side pressure ± 4 psig High side pressure ± 10 psig T ables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to serial plate instruction s.
An important point after buying a device Bard Q42A1 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bard Q42A1 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 Bard Q42A1 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bard Q42A1 you will learn all the available features of the product, as well as information on its operation. The information that you get Bard Q42A1 will certainly help you make a decision on the purchase.
If you already are a holder of Bard Q42A1, 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 Bard Q42A1.
However, one of the most important roles played by the user manual is to help in solving problems with Bard Q42A1. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bard Q42A1 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
