Amana PGB58B manuale d’uso

Gas-Electric Package Unit Cooling and Heating Installation Instructions MODELS PGC(24-60)B and PGB58B May 1998 (2) 11073904 Amana Fayetteville, TN 37334 As a professional installer you have an obligation to know the product better than the customer. This in- cludes all safety precautions and related items. Prior to actual installation, thoroughly f[...]

2 I. Unit Specifications MO DEL PGC24 B0452A P GC24B07 02A P GC30B07 02A PGC36 B0702A PGC36 B0902A Cool in g Ca paci ty Btuh 24,00 0 24,00 0 30,000 36,00 0 36,000 SEE R 12.50 12. 50 12. 30 12.00 12.00 Heati ng I nput B tuh 45,00 0 70,000 70,000 70,000 90,000 Output Btuh 35,00 0 55,000 55,000 55,000 70,000 A FUE 80.9 80. 1 80.1 80.1 80. 4 Temperat u[...]

3 Table 1B Gas Pack Specifications 1) United States Installation 2) Specification subject to change without notice. See sales specification sheets for certain BTUH capacities. 3) This PGC series complies with requirements embodied in the American National Standard ANSI-Z21.47 Central Furnaces. 4) Filters are not supplied with units, but filters mus[...]

4 Table 1C Gas Pack Specifications M ODEL PGB58B 0902A PGB58B1152A PGB58B 1352A Cooling Capacity Btuh 59,500 59,500 59,500 SEER 11.10 11.10 11.10 Heating Input Btuh 90,000 115,000 135,000 Output Bt uh 72,000 92,000 108,000 AFUE 81.4 79.9 80.5 T emperatur e Ri se °F 25- 55 25-55 25-55 Num b er o f Bu rn e rs 4 4 4 Compres sor R.L. Amps 28.8 28.8 28[...]

5 1. Installation is to be adjusted to obtain temperature rise within the range specified on the rating plate. 2. The temperature rise is for units installed at 0-2000 feet. At higher altitudes, a properly derated unit will have approximately the same temperature rise and CFM. 3. The chart is applicable for both vertical and horizontal airflow. 4. [...]

6 II. Safety Information Important To The Installer Before installing this unit please read this manual to fa- miliarize yourself with the specific items which must be adhered to such as maximum external static pressure to unit, air temperature rise, minimum or maximum CF M and motor speed connections. Affix these Installation Instructions adjacent[...]

7 Locating The Unit WARNING To avoid possible equipment damage, fire, personal injury, or death, the follow- ing points must be observed when install- ing the unit. All Installations: • For proper flame pattern within the heat exchanger and proper condensate drainage, the unit must be mounted level. • The unit should be as centralized as is pra[...]

8 Figure 1 Required Clearances For All Installations[...]

9 Transportation Damage All units are securely packed in shipping cartons ap- proved by the International Safe Transit Association. The carton should be checked upon arrival for external dam- age. If damage is found, a request for inspection by car- rier agent should be made in writing immediately. The unit should be carefully inspected upon arriva[...]

10 V . Gas Piping IMPORTANT NOTE: This furnace is factory set to oper- ate on natural gas at the altitudes shown on the rating plate. If operation at higher altitudes and/or propane gas operation is required, obtain and install the proper con- version kit(s) before operating this furnace. Failure to do so may result in unsatisfactory operation and/[...]

11 Figure 3 Proper Piping Practice Checking The Gas Piping CAUTION To avoid the possibility of personal in- jury, property damage or fire, the follow- ing instructions must be performed re- garding gas connections and pressure testing: • This unit and its gas connections must be leak tested before placing in opera- tion. Because of the danger of [...]

12 Special pipe dope must be used when assembling pip- ing for this gas as it will quickly dissolve white lead or most standard commercial compounds. Shellac base compounds resistant to the actions of liquefied petro- leum gases such as Gasolac, Static, Clyde or John Crane are satisfactory. Please refer to Figure 4 for typical propane gas instal- l[...]

13 CAUTION To prevent improper and dangerous op- eration due to wiring errors, label all wires prior to disconnection when servicing controls. Verify proper operation after servicing. Vll. Circulating Air and Filters Airflow Conversion Units can easily be converted from horizontal to vertical airflow delivery. Units will ship from the factory ready[...]

14 Figure 8 Typical Electrical Wiring Typical Wiring (Ground Level) Disconnect Swit ch High V ol tag e So urc e High Volt age Ent rance Low Vol ta ge Ent rance Typical Wiring (Rooftop ) Disconnect Swit ch High V ol tag e So urc e High Volt age Ent rance Low Vol ta ge Ent rance Junctio n Box Roofto p Curb[...]

15 Duct systems and register sizes must be properly de- signed for the C.F.M. and external static pressure rating of the unit. Ductwork should be designed in accordance with the recommended methods of Air Conditioning Con- tractors of America Manual D (Residential) or Manual Q (Commercial). All ductwork exposed to the outdoors must include a weathe[...]

16 VIII. Flue V ent Flue Hood And Air Inlet Hood Installation The flue hood and air inlet hood are packaged in a box which is located inside the return air compartment. They must be installed prior to operation of the unit. See Fig- ure 10. To install the flue hood cover: 1. Remove the flue hood from inside the box. 2. Slide the upper lip of the ho[...]

17 Air Ci rcu lat i on B l ower Gas Val v e Ignitor Pressure S wit ch (N.O . Co ntacts) Comb ust i on Bl o wer Therm ostat ON OFF ON OFF ON OFF ON OFF OPEN CLO S E D CLO S E D OPEN S e co n d s 0 34 3 8 11 0 0 9 0 Therm ostat ON Gas Val v e Open s Ignitor O FF Air Bl ower ON Therm ostat OFF Comb us t i on Pro duc t Purg e E nds . Air Bl ower OFF Co[...]

18 X. Heating Sequence of Operations PGB & PGC) Normal Sequence of Operation - Heating See Figure 12 1. Thermostat calls for heat. The combustion blower is immediately energized. 2. The pressure switch contacts transfer. 3. The ignitor is energized and allowed to preheat for 38 seconds. 4. The gas valve is energized delivering gas to the burner[...]

19 WARNING To avoid the risk of fire or explosion, a qualified servicer must investigate the problem which caused the roll-out pro- tection device to open before manually resetting the device. Flam e R oll-Out Protect o r (M an ua l Re s et) Figure 14 Rollout Protection (Shown Without Heat Shield) Secondary Limit Control On the PGC and PGB series, [...]

20 Gas Input And Pressures Gas supply pressure and manifold pressure with the burners operating must be as specified on the rating plate. Checking Gas Pressure Gas inlet pressure should be checked and adjusted in accordance to the type of fuel being consumed. With Power And Gas Off: 1. Connect a water manometer or adequate gauge to the manifold gas[...]

21 With a properly designed system, the proper amount of temperature rise will normally be obtained when the unit is operated at rated input with the recommended blower speed. If the correct amount of temperature rise is not obtained, it may be necessary to change the blower speed. A higher blower speed will lower the temperature rise. A slower blo[...]

22 Figure 18 Fan and Limit Control CAUTION This unit should not be used as a “con- struction heater” during the finishing phases of construction on a new struc- ture. This type of use may result in pre- mature failure of the unit due to extremely low return air temperatures and exposure to very dirty atmospheres. To Turn Off Unit 1. Set the the[...]

23 Important Note: Never close the compressor suction line to test its pumping efficiency. This will seriously dam- age the compressor and void its warranty. • The compressor may run backwards (noisy opera- tion) for 1 or 2 seconds at shutdown. This does not harm the compressor. • These scroll compressors have copper plated steel suction tubes.[...]

24 When installing a new filter or reinstalling an old one, always make certain the air flow arrows on the filter point in the proper direction. If using the unit filter rack, the airflow arrows must point toward the indoor blower. To inspect the filter in the filter rack, proceed as follows: 1. Disconnect power to the unit. 2. Locate the filter ac[...]

25 Flame Sensor (Qualified Servicer Only) Under some conditions, the fuel or combustion air sup- ply can create a nearly invisible coating on the flame sensor. This coating acts as an insulator causing a drop in the flame sensing signal. If this occurs, a qualified servicer should carefully clean the flame sensor with emery cloth or steel wool. Aft[...]

26 Burners WARNING To avoid personal injury or death due to electrical shock, do not remove any internal compartment covers or attempt any adjustment. Contact a qualified ser- vicer at once if an abnormal flame ap- pearance should develop. At least once a year, prior to or during the heating sea- son, make a visual check of the burner flames. NOTE:[...]

27 XV . T ypical Cooling Performance Data O utdoor In door PGC24 PG C30 PGC36 Air Te m p . at Air Te m p. In door Air Te m p . P res su re @ U n i t G auge F i tti ngs Am ps Indo or Air Te m p . P res su re @ U n i t G auge F i tti ngs Am ps Indo or Air Te m p . P res su re @ U n i t G auge F i tti ngs Am ps C o n den ser Inle t (D ry B ulb) at E v[...]

28 Outdoor Indoor PGC42 P GC48 P GC60 a nd P GB58 Air T em p. at Air Tem p. Indoor Air T em p. Pres sure @ Uni t Gau ge Fi tt in gs Amps Indoor Air T em p. P ressure @ U nit Gau ge Fi tt in gs Amps Indoor Air T em p. P ressure @ U nit Gau ge Fi tt in gs Amps Condenser Inlet (D ry Bu lb) at E va p. Inlet (Wet Bulb) Diff er ence Bet ween Coil Inle t [...]

29 XVI. Wiring Diagram PGC24 - 36[...]

30 PGC 42[...]

31 PGC 48[...]

32 PGC 60 YL YEL LOW OR ORANGE VT V IOLET GN GREEN BK BL ACK BR BROW N WH WHITE BU BLUE GY GRAY RD RED COLOR COD E LOW VOLTAGE LOW VOLTAGE FIELD HI VOLT A GE HI VO LT AGE FI ELD * HEAT TA P MODE L NO . PGC60B0902A FACTOR Y WI RE D MOTOR CO NN ECTI O NS 11160801 REV. 0 ** COOL TA P RE AD B EFOR E OPER ATIN G OR SER VIC ING T HIS UNIT . W AR NIN G: D[...]

33 PGB 58 YL YEL L OW OR O RAN GE VT VIO L ET GN GR EEN BK BLAC K BR BR OWN WH WHITE BU BLU E GY G R AY RD RED CO LOR C OD E LOW VO LTAGE LOW VO LTAGE FIEL D HI VOL TAGE HI VOL TAGE FIELD * HE ATI NG B LOW ER SP E ED MO DE L NO . PG B5 8B 09 0 PG B5 8B 11 5 FACTORY WIR ED MOTO R CONNEC TIONS 11 16 10 0 1 R EV . 0 SPEE D LO W MED ** COO L I NG BL O [...]