background image

S

SA

AF

FE

ET

TY

Y W

WA

AR

RN

NIIN

NG

G

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.

June 2022

1

18

8--E

EB

B4

41

1D

D1

1--1

1A

A--E

EN

N

Single Packaged Gas/Electric 15 SEER2 Convertible,
2 - 5 Ton, 60 - 115 KBTU, R-410A

4YCZ5024E1060A
4YCZ5036E1070A
4YCZ5036E1090A
4YCZ5048E1090A
4YCZ5048E1115A
4YCZ5060E1115A

N

No

otte

e:: “Graphics in this document are for representation

only. Actual model may differ in appearance.”

N

No

otte

e:: “Unit specific Service Facts available online.”

Installation and Operations Manual

Summary of Contents for 4YCZ5024E1060A

Page 1: ...rious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment June 2022 1 18 8 E EB B4 41 1D D1 1 1 1A A E EN N Single Packaged Gas Electric 15 SEER2 Convertible 2 5 Ton 60 115 KBTU R 410A 4YCZ5024E1060A 4YCZ5036E1070A 4YCZ5036E1090A 4YCZ5048E1090A 4YCZ5048E1115A 4YCZ5060E1115A N No ot te e Graphics in th...

Page 2: ... eq qu ui ip pm me en nt t d da am ma ag ge e o or r p pe er rs so on na al l i in nj ju ur ry y R Re ec co on nn ne ec ct t a al ll l g gr ro ou un nd di in ng g d de ev vi ic ce es s A Al ll l p pa ar rt ts s o of f t th hi is s p pr ro od du uc ct t t th ha at t a ar re e c ca ap pa ab bl le e o of f c co on nd du uc ct ti in ng g e el le ec ct tr ri ic ca al l c cu ur rr re en nt t a ar re e g...

Page 3: ...nstallation 17 Attaching Downflow Ductwork to Roof Curb 17 Attaching Downflow Ductwork to Roof Frame 17 Attaching Horizontal Ductwork to Unit 18 Condensate Drain Piping 18 Gas Piping Installation 18 Air Filter Installation 21 Electrical Wiring 21 Unit Startup 24 Pre Start Quick Checklist 24 Starting the Unit in Cooling Mode 24 Heating Cycle 24 Starting the Unit in the Gas Heating Mode 25 Sequence ...

Page 4: ...001A mountings N No ot te e The packaged units have been evaluated in accordance with the Code of Federal Regulations Chapter XX Part 3280 or the equivalent SUITABLE FOR MOBILE HOME USE Inspect Shipment 1 Check for damage after the unit is unloaded Report promptly to the carrier any damage found to the unit Do not drop the unit I Im mp po or rt ta an nt t To prevent damage to the sides and top of ...

Page 5: ...STAGE SCROLL VOLTS PH HZ 208 230 1 60 R L Amps L R Amps LOCATED ON UNIT NAMEPLATE OUTDOOR COIL TYPE SPINE FIN Rows F P I 2 24 Face Area sq ft 13 32 15 49 23 57 23 57 Tube Size in 3 8 Refrigerant Control EXPANSION VALVE INDOOR COIL TYPE MCHE PLATE FIN Rows F P I 2 16 4 15 Face Area sq ft 2 7 3 54 5 0 Tube Size in 1 3 8 Refrigeration Control EXPANSION VALVE Drain Conn Size in 3 4 FEMALE NPT OUTDOOR ...

Page 6: ...rn air stream Square footages listed are based on 300 f p m face velocity If permanent filters are used size per manufacturer s recommendation with a clean resistance of 0 05 W C c Sound Power values are not adjusted for AHRI 270 95 tonal corrections d All models are certified to UL 1995 Ratings shown are for elevations up to 2000 ft For higher elevations reduce ratings at a rate of 4 per 1000 ft ...

Page 7: ...ooling cannot be achieved within those charge bounds contact your Field Service Representative 5 When system is correctly charged you can refer to System Pressure Curves to verify typical performance C CH HA AR RG GI IN NG G B BE EL LO OW W 5 55 5 F F Evacuate system and weigh in nameplate charge or use factory charge Correct subcooling may be verified when the temperature is above 55 F R 410A REF...

Page 8: ... A BB CC CENTER OF GRAVITY TABLE NEXT PAGE CENTER OF GRAVITY TABLE NEXT PAGE 305 12 305 12 914 36 914 36 DIMENSIONS mm Inches HEIGHT OF UNIT TABLE NEXT PAGE 25 1 25 1 152 6 152 6 305 12 305 12 2 3 TON Units 4 5 TON Units RECOMMENDED SERVICE CLEARANCE mm Inches CLEARANCE TO COMBUSTIBLE MATERIAL mm Inches 0 0 DD Depth EE Width FF 498 90 19 5 8 575 06 22 5 8 1095 00 43 1 18 1169 92 46 1 16 1531 87 60...

Page 9: ...12 3 31 W1 W2 W3 W4 BB CC 4YCZ5024 60 3 133 38 1 84 26 8 59 42 6 94 199 6 440 167 8 370 406 0 16 0 533 4 21 0 4YCZ5036 070 61 0 134 38 0 84 31 0 69 49 0 107 218 0 481 175 0 385 399 0 15 7 546 0 21 5 4YCZ5036 090 61 0 134 37 0 81 31 0 69 51 0 113 226 0 498 182 0 402 389 0 15 3 559 0 22 0 4YCZ5048 090 75 7 167 50 8 112 45 8 101 68 5 151 299 2 659 240 9 531 444 5 17 5 698 5 27 5 4YCZ5048 115 81 6 180...

Page 10: ...es may result in condenser coil starvation or the recirculation of warm condenser air Actual clearances which appear to be inadequate should be reviewed with a local engineer 3 See the unit s nameplate for the absolute minimum clearance between the unit and any combustible surfaces D Do ow wn n A Ai ir rf fl lo ow w U Un ni it ts s 1 Location of the unit must allow service clearance around it to e...

Page 11: ...ra an nc ce es s 1 The recommended clearances for single unit installations are illustrated in Determine Unit Clearances p 8 2 Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recirculation of warm condenser air Actual clearances which appear to be inadequate should be reviewed with a local engineer 3 See the unit s nameplate for the ab...

Page 12: ...neer I Im mp po or rt ta an nt t A minimum clearance of 0 0 to combustible material shall be maintained on air outlet duct 4 Attach the supply and return air ducts to the unit as explained in the Ductwork Installation section 5 Flexible duct connectors must be of a flame retardant material Insulate any ductwork outside of the structure with at least two 2 inches of insulation and weatherproof Ther...

Page 13: ...t a ap pp pr ro ox xi im ma at te el ly y 2 24 4 i in nc ch he es s t to o v ve er ri if fy y p pr ro op pe er r c ce en nt te er r o of f g gr ra av vi it ty y l li if ft t p po oi in nt t T To o a av vo oi id d d dr ro op pp pi in ng g o of f u un ni it t r re ep po os si it ti io on n l li if ft ti in ng g p po oi in nt t i if f u un ni it t i is s n no ot t l le ev ve el l I Im mp po or rt ta ...

Page 14: ...XMK001A to add additional hold down strength to the mounting N No ot te e The ductwork is installed as part of the curb installation Do not attach ductwork to the unit and lower the unit with ductwork onto the curb Table 3 Vibration Isolators Snow Feet Locations Note These views represent the base as viewed looking up from underneath the unit Important Unit requires vibration isolator support in t...

Page 15: ...ired Flashing must conform to local building codes 2 Prepare the hole in the roof in advance of installing the unit 3 Secure the horizontal or down airflow ducts to the roof Refer to the previous Convert from Horizontal Airflow to Down Airflow section if conversion is needed 4 All fabricated outdoor ducts should be as short as possible 5 Place the unit on the rails 6 The unit must be mounted level...

Page 16: ...epicted in the drawing The manufacturer is not responsible for the unauthorized use of this drawing and expressly disclaims any liability for damages resulting from such unauthorized use Table 6 Typical Rooftop Horizontal Airflow Application with Frame Supply Air Return Air Roof Flashing Channel Iron Center Support Center Support required on all frame applications Angle Iron Frame U Un ni it t I I...

Page 17: ... with three 3 inch canvas connectors to minimize noise and vibration transmission Elbows with turning vanes or splitters are recommended to minimize air noise and resistance The first elbow in the ductwork leaving the unit should be no closer than two 2 feet from the unit to minimize noise and resistance To prevent leaking do not attach the ductwork to the bottom of the unit base Refer to the bott...

Page 18: ...y d da am ma ag ge e U Us se e a a c co om mm me er rc ci ia al ll ly y a av va ai il la ab bl le e s so oa ap p s so ol lu ut ti io on n m ma ad de e s sp pe ec ci if fi ic ca al ll ly y f fo or r t th he e d de et te ec ct ti io on n o of f l le ea ak ks s t to o c ch he ec ck k a al ll l c co on nn ne ec ct ti io on ns s I Im mp po or rt ta an nt t Before making the gas pipe connection give ser...

Page 19: ... the unit gas piping See Table 10 p 19 N No ot te e The shut off gas cock must be installed outside of the unit and should meet the specifications of all applicable national and local codes Table 10 Gas Pipe DEALER INSTALLED GROUND UNION 1 8 N P T PLUGGED ACCESS FOR TEST GAUGE CONNECTION FROM GAS SUPPLY FIELD SUPPLIED MAIN GAS VALVE MUST BE INSTALLED BY DEALER OUTSIDE OF UNIT UNIT TO MAIN CONTROL ...

Page 20: ...ment Regulator Vent Inlet Pres sure Boss Gas Valve ON OFF Toggle Switch High Fire Coil Terminal H 1st Stage LO Manifold Pressure Adjustment Common Terminal C Coaxial Coil Terminal M REF VIEW Table 11 Gas Flow in cfh Sec Flow Sec Flow Sec Flow Sec Flow 8 900 29 248 50 144 82 88 9 800 30 240 51 141 84 86 10 720 31 232 52 138 86 84 11 655 32 225 53 136 88 82 12 600 33 218 54 133 90 80 13 555 34 212 5...

Page 21: ...i is s W Wa ar rn ni in ng g c co ou ul ld d r re es su ul lt t i in n p pr ro op pe er rt ty y d da am ma ag ge e s se ev ve er re e p pe er rs so on na al l i in nj ju ur ry y o or r d de ea at th h B Bo od di il ly y i in nj ju ur ry y c ca an n r re es su ul lt t f fr ro om m h hi ig gh h v vo ol lt ta ag ge e e el le ec ct tr ri ic ca al l c co om mp po on ne en nt ts s f fa as st t m mo ov v...

Page 22: ... CT TR RI IC CA AL LL LY Y G GR RO OU UN ND DE ED D I IN N A AC CC CO OR RD DA AN NC CE E W WI IT TH H L LO OC CA AL L C CO OD DE ES S O OR R T TH HE E N NA AT TI IO ON NA AL L E EL LE EC CT TR RI IC C C CO OD DE E N No ot te e Unit must be grounded for ignitor to operate properly Gas pipe to unit is not an adequate ground Ground the unit internally as provided See Field Wiring Diagram for locatio...

Page 23: ...po or rt ta an nt t Upon completion of wiring check all electrical connections including factory wiring within the unit Make sure all connections are tight Replace and secure all electrical box covers and access panels before leaving the unit or turning on the power to the unit Figure 7 Field Wiring Diagram CONSTANT CIRCULATION N No ot te e For economizer wiring instructions see the Installer s Gu...

Page 24: ...P Pr re es ss su ur re e C Ch he ec ck ks s After the unit has operated in the cooling mode for a short period of time install pressure gauges on the gauge ports of the discharge and suction line valves behind the Compressor access panel Check the suction and discharge pressures and compare them to the normal operating pressures provided in the unit s SERVICE FACTS N No ot te e Do not use the PRES...

Page 25: ...r simply feels uncomfortably humid it is recommended that the fan only be used in the A AU UT TO O mode The fan switch ON position provides continuous operation while the AUTO position provides operation during the heating or cooling cycles Heating Cycle T Th he er rm mo os st ta at t c ca al ll l f fo or r h he ea at t 2 2 s st ta ag ge e t th he er rm mo os st ta at t C Ca al ll l f fo or r 1 1s...

Page 26: ...from ON to OFF for approximately three seconds then back ON Cooling Cycle T Th he er rm mo os st ta at t c ca al ll l f fo or r c co oo ol li in ng g 2 2 s st ta ag ge e t th he er rm mo os st ta at t C Ca al ll l f fo or r 1 1s st t s st ta ag ge e c co oo ol li in ng g o on nl ly y With the room thermostat set to the C CO OO OL L position and the fan switch in the A AU UT TO O position a call fo...

Page 27: ...that they are physically sound and sealed to the unit casing unit mounting support for structural integrity the unit for obvious unit deterioration H He ea at ti in ng g S Se ea as so on n Complete the following unit inspections and service routines described at the beginning of each heating season Visually inspect the unit to ensure that the airflow required for combustion and condenser coil is n...

Page 28: ...mance Table Blower speed changes are made on the ECM Fan Control mounted in the control box The ECM Fan Control controls the variable speed motor There is a bank of 8 dip switches See Figure 8 p 28 located on the board The dip switches work in pairs to match the cooling heat airflow CFM TON Fan off delay options and electric heat airflow adjustment The unit ships with dip switches defaulted as sho...

Page 29: ...DOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 63 AND 59 DEG F INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 63 AND 59 DEG F DISCHARGE PRESSURE PSIG SUCTION PRESSURE PSIG OUTDOOR TEMPERATURE Degree F 2ND STAGE 2ND STAGE 1ST STAGE 1ST STAGE 1 1 3 3 4 5 2 2 3 3 5 COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F TO CHECK COOLING PERFORMANCE SELECT THE PROPER INDOOR ...

Page 30: ...67 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION 3 AT INTERSECTION 4 LIQUID PRESSURE 830 CFM IS 288 PSIG 4 LIQUID PRESSURE 1175 CFM IS 312 PSIG 5 SUCTION PRESSURE 830 CFM IS 149 PSIG 5 SUCTION PRESSURE 1175 CFM IS 144 PSIG ACTUAL LIQUID PRESSURE SHOULD BE 10 PSI OF CHART SUCTION PRESSURE SHOULD BE 3 PSIG OF CHART DWG NO 4YCZ5036E 120 130 140 150 160 170 180 190 40 50 60 70 80 90 100 110 120 120 130 1...

Page 31: ...CFM ALLOW PRESSURES TO STABILIZE MEASURE INDOOR WET BULB TEMPERATURE OUTDOOR TEMPERATURE LIQUID AND SUCTION PRESSURES ON THE PLOTS LOCATE OUTDOOR TEMPERATURE 1 LOCATE INDOOR WET BULB 2 FIND INTERSECTION OF OD TEMP ID W B 3 READ LIQUID 4 OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE FIRST STAGE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION 4 LIQUID PRESSURE 800 CFM IS 336 PSIG 5 SUCTI...

Page 32: ... ALLOW PRESSURES TO STABILIZE MEASURE INDOOR WET BULB TEMPERATURE OUTDOOR TEMPERATURE LIQUID AND SUCTION PRESSURES ON THE PLOTS LOCATE OUTDOOR TEMPERATURE 1 LOCATE INDOOR WET BULB 2 FIND INTERSECTION OF OD TEMP ID W B 3 READ LIQUID 4 OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE FIRST STAGE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION 4 SUCTION PRESSURE 800 CFM IS 339 PSIG 5 DISCHAR...

Page 33: ...n Setting Low 825 830 837 841 843 842 844 840 844 839 842 836 839 836 836 828 High 1179 1185 1196 1201 1204 1203 1206 1201 1205 1196 1203 1197 1199 1194 1194 1184 4YCZ5048 1 090 115 Horizontal Airflow Cooling Down Airflow Motor Speed 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 350CFM Ton Setting Low 954 948 973 977 977 977 973 970 966 969 957 975 950 979 944 962 High 1363 1354 1390 1396 1396 1396 13...

Page 34: ... Stage Low Stage High Stage Low Stage High Stage Low Stage High Stage Low Stage High Stage 7 OFF 8 OFF A 600 850 725 1000 825 1100 1075 1375 1050 1500 1375 1800 7 ON 8 OFF B 625 900 775 1075 875 1175 1100 1450 1100 1575 1450 1900 7 OFF 8 ON C 650 925 850 1150 1150 1500 1150 1625 7 ON 8 ON D 700 975 925 1250 1200 1575 1200 1700 Refrigerant Circuit Cooling Refrigeration Cycle U Un ni it t S St ta ar...

Page 35: ... TXV Stuck Open Low Superheat High Superheat Restricted I D Airflow Ref Circuit Restrictions REFRIGERANT CIRCUIT Liquid Pressure too High P S P S S Liquid Pressure too Low S P S S S Suction Pressure too High S P P S S Suction Pressure too Low S S P S Liquid Refrigerant Floodback TXV System S S P I D Coil Frosting P S P S Compressor Runs Inadequate or No Cooling S P P S S S S P S ELECTRICAL Compres...

Page 36: ...ctices 18 EB41D1 1A EN 10 Jun 2022 Supersedes New 2022 Important Product Information Packaged Unit Serial Number_____________________________________________________ Packaged Unit Model Number_____________________________________________________ Date of Installation_______________________________________________________________ Dealer________________________________________________________________...

Reviews: