INSTALLATION MANUAL SINGLE PACKAGED GAS/ELECTRIC AIR COOLED AIR CONDITIONERS 3 THROUGH 5 NOMINAL TON CONTENTS DYA: 036 042 048 060 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .
341426-BIM-A-0108 TABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 APPROVALS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41426-BIM-A-0108 GENERAL APPROVALS Model DYA units are cooling/heating air conditioners designed for outdoor installation. Only gas piping, electric power and duct connections are required at the point of installation. Design certified by CGA and AGA listed as follows: 1. For use as a forced air furnace with cooling unit. 2. For outdoor installation only. The gas-fired heaters have spark to pilot ignition. The tubular heat exchangers are aluminized steel. 3.
341426-BIM-A-0108 INSTALLATION LIMITATIONS Excessive exposure of this furnace to contaminated combustion air may result in equipment damage or personal injury. Typical contaminants include: permanent wave solution, chlorinated wastes and cleaners, chlorine based swimming pool chemicals, water softening chemicals, carbon tetrachloride, halogen type refrigerants, cleaning solvents (e.g.
341426-BIM-A-0108 Duct work should be designed and sized according to the methods of the Air Conditioning Contractors of America (ACCA), as set forth in their Manual D. TABLE 2: UNIT WEIGHTS AND CENTER OF GRAVITY CORNER WEIGHTS (LOCATION, LBS.) UNIT SIZE SHIPPING WEIGHT (LBS.) OPERATING WEIGHT (LBS.) “A” “B” “C” “D” 036 400 395 100 96 98 101 042 410 405 104 100 101 105 048 475 470 119 115 116 120 060 480 475 120 116 117 122 A closed return duct system shall be used.
341426-BIM-A-0108 THERMOSTAT The wiring entering the cabinet must be provided with mechanical strain relief. The room thermostat should be located on an inside wall approximately 56" above the floor where it will not be subject to drafts, sun exposure or heat from electrical fixtures or appliances. Follow manufacturer's instructions enclosed with the thermostat for general installation procedure. Four color coded insulated wires (minimum #18 AWG) should be used to connect thermostat to unit.
341426-BIM-A-0108 TABLE 3: NATURAL GAS APPLICATION DATA AVAILABLE ON MODELS INPUT CAPACITY (MBH)1 TEMP. RISE °F AT FULL OUTPUT CAPACITY (MBH) GAS RATE2 FT.3/HR. NUMBER OF BURNERS INPUT3 MIN. MAX. 3 & 3-1/2 TON 45 36 42 2 25 55 3 & 3-1/2 TON 70 56 65 3 25 55 4 & 5 TON 80 64 74 3 25 55 3 & 3-1/2 TON 90 72 84 4 30 60 4 & 5 TON 108 87 100 4 30 60 4 & 5 TON 135 108 126 5 35 65 1. Heating capacity valid for elevations up to 2000 feet above sea level.
341426-BIM-A-0108 GAS PIPING TABLE 5: NATURAL GAS PIPE SIZING CHART1 Proper sizing of gas piping depends on the cubic feet per hour of gas flow required, specific gravity of the gas and the length of run. National Fuel Gas Code Z223.1 or CAN/CGA B149.1 or .2 should be followed in all cases unless superseded by local codes or gas company requirements. Refer to Tables 5 and 6.
341426-BIM-A-0108 FLUE VENT HOOD If flexible stainless steel tubing is allowed by the authority having jurisdiction, wrought iron or steel pipe must be installed at the gas valve and extend a minimum of two (2) inches outside of the unit casing. The flue vent hood with screen is not shipped attached. This hood must be installed to assure proper unit operation.
341426-BIM-A-0108 TABLE 7: PHYSICAL DATA DYA MODEL EVAPORATOR BLOWER 036 CENTRIFUGAL BLOWER (Dia. x W. in.) FAN MOTOR HP (3 Speed) ROWS DEEP EVAPORATOR COIL CONDENSER FAN 048 12 x 11 060 11 x 10 11 x 10 12 x 11 3/4 3/4 1 1 2 3 3 3 FINS PER INCH 15 13 13 13 FACE AREA (Sq. Ft.) 3.5 3.5 4.5 4.5 PROPELLER DIA. (in.) 22 22 22 22 FAN MOTOR HP 1/4 1/4 1/4 1/4 3,000 NOM.
341426-BIM-A-0108 V E N T AI R O U T L E T H O O D B L O W E R S E R V I C E A C C E S S C O M PA R T M E N T G AS S U P PL Y 1 - 1 / 4 " D I A . P A N E L H O L E ( 1 / 2 " N P T I C O N N E C T I O N ) C O N D E N S E R C O I L U N I T C O N D E N S A T E C O N N E C T I O N 3 / 4 " N P T I ( T R A P R E C O M M E N D E D ) A 2 - 3/ 8 H I G H V O L T A G E C O N N . 1 - 3 / 8 " D I A . K N O C K O U T H I G H V O L T A G E C O N N . 7 / 8 " D I A .
341426-BIM-A-0108 H IG H V O L T A G E C O N N . 1 -3 /3 2 " D IA . K N O C K O U T 8 -7 /8 1 1 -7 /8 1 9 -1 /4 F R O N T G A S S U P P L Y 1 -5 /8 " D IA . K N O C K O U T (1 /2 " N P T I C O N N E C T IO N ) L O W V O L T A G E C O N N . 1 /8 " D IA .
341426-BIM-A-0108 SEQUENCE OF OPERATION begins pressure switch proving before an inter-purge and reignition attempt. The unit is controlled by a conventional heating/cooling thermostat common to this class of equipment. PILOT FLAME STABILIZATION PERIOD HEATING The control board begins a call for heat when W1 is energized (connected to R). The control ignores W2 until pilot ignition has been established. The control checks to see if the pressure switch is open.
341426-BIM-A-0108 The control recognizes a call for 2nd stage heat when W2 is energized (connected to "R"). The control energizes the high gas output and induced draft motor on high speed. Rollout switch lockout shall not reset automatically. If the call for 2nd stage heat goes away and the 1st stage call remains, the control de energizes the high gas valve, drops inducer speed to low, and returns to low heat operation.
341426-BIM-A-0108 2. 3. 4. Pressure Switch (PS) - If the draft motor should fail, the pressure switch prevents the ignition controls and gas valves from being energized. Flame Sensor - The flame sensor and controls are located per Proper Flame Adjustment, Figure 12. If an ignition control fails to detect a signal from the flame sensor indicating the pilot flame is properly ignited, then the main gas valve will not open. Rollout Switch (RS) - This switch is located in the burner vestibule.
341426-BIM-A-0108 2. Turn off all electric power to the appliance if service is to be performed. 3. Remove the control access panel. 4. Turn the gas valve switch to the OFF position. DO NOT FORCE. 5. Replace the control access panel. POST-START CHECK LIST (GAS) After the entire control circuit has been energized and the heating section is operating, make the following checks: 1. Line Pressure Tap ½ NPT Check for gas leaks in the unit piping as well as the supply piping. (Inlet) 2.
341426-BIM-A-0108 The temperature rise (or temperature difference between the return air and the heated air from the furnace) must lie within the range shown on the rating plate and the data in Tables 3 and 4. 3 8" min. After the temperature rise has been determined, the CFM can be calculated as follows: After about 20 minutes of operation, determine the furnace temperature rise.
341426-BIM-A-0108 TABLE 12: GASE RATE - CUBIC FEET PER HOUR1 1. 18 SECONDS FOR ONE REV. 1/2 CU. FT. 1 CU. FT.
341426-BIM-A-0108 DYA Coil Delta P vs Airflow DYA042 DYA048 - 060 0.9 0.8 DYA036 0.7 ID Coil Delta P 0.6 DYA036 0.5 DYA042 DYA048-060 0.4 0.3 0.2 0.1 0 400 600 800 1000 1200 1400 1600 1800 2000 2200 Airflow (CFM) FIGURE 13 - DYA COIL DELTA P VS. AIRFLOW TABLE 13: SUPERHEAT CHARGING TABLE FOR DYA036 OUTDOOR TEMP. °F SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM INDOOR WB TEMP. (°F) 55 57 59 61 63 65 67 69 71 73 75 65 27.1 28.4 29.7 31.1 32.4 33.7 35.
341426-BIM-A-0108 TABLE 14: SUPERHEAT CHARGING TABLE FOR DYA042 OUTDOOR TEMP. °F SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM INDOOR WB TEMP. (°F) 55 57 59 61 63 65 67 69 71 73 75 65 18.0 19.7 21.4 23.0 24.7 26.3 28.0 29.1 30.2 31.3 32.4 70 13.4 15.3 17.3 19.3 21.2 23.2 25.2 26.6 28.1 29.6 31.1 75 8.7 10.9 13.2 15.5 17.8 20.0 22.3 24.2 26.1 28.0 29.9 80 - 6.6 9.1 11.7 14.3 16.9 19.5 21.7 24.0 26.3 28.6 85 - - 5.1 7.9 10.8 13.7 16.
341426-BIM-A-0108 FIGURE 14 - TYPICAL WIRING DIAGRAM DYA 036, 042, 048, 060 (208/230-3-60 POWER SUPPLY) Johnson Controls Unitary Products 21
341426-BIM-A-0108 FIGURE 15 - TYPICAL WIRING DIAGRAM DYA 036, 042, 048, 060 (460-3-60 POWER SUPPLY) 22 Johnson Controls Unitary Products
BLU (MED) BLU / WHT (BR-LI) RED (LOW) ID FAN MOTOR BLK / WHT BLK / WHT (BR-LI) BLU (MED) BLU / WHT RED (LOW) ID FAN MOTOR MED SPEED BLK (HI) LOW SPEED BLK (HI) HI SPEED BLK (HI) (BR-LI) BLK / WHT BLU (MED) BLU / WHT RED (LOW) ID FAN MOTOR 341426-BIM-A-0108 FIGURE 16: WIRING DIAGRAM DETAIL A (460-3-60 POWER SUPPLY)1 1. See Figure 15. TYPICAL WIRING DIAGRAM NOTES 801/BL and 805/BL are connected to M1 coil. If only ASCT is present wire 202/Y is connected to ASCT-3.
LEGEND ALS ASCT BR CB CCH COMPR DM FCB GND FS HP IDFAN LP LS LR M1 ODFAN PS RC1 / RC2 RS TB4 T1 T2 AUXILARY LIMIT SWITCH ANTI-SHORT CYCLE TIMER (OPTIONAL) BLOWER RELAY CIRCUIT BREAKER CRANK CASE HEATER (OPTIONAL) COMPRESSOR DRAFT MOTOR FAN CONTROL BOARD GROUND FREEZE STAT SWITCH (OPTIONAL) HIGH PRESSURE SWITCH OPENS @ 380 PSIG INDOOR FAN MOTOR LOW PRESSURE SWITCH OPENS @ 7 PSIG LIMIT SWITCH LOCK OUT RELAY (OPTIONAL) CONTACTOR, COMPR.