Wiring Diagrams (Including Accessories) (50/60 Hz)

Transcription

1 UNIT 38AKS ELECTRICAL CHARACTERISTICS (V-Ph-Hz) 208/ Typical Field Wiring Electronic Programmable Thermostat, Liquid Line Solenoid Valves, and Power Fig. 5 Time Delay Relay Wiring Fig. 6 Hot Gas Bypass Wiring Fig. 7 Motormaster Head Pressure Control Wiring Fig. 10,11,12 NOTE: Italics denote 60 Hz export units (not for sale in USA). Wiring Diagrams (Including Accessories) (50/60 Hz) WIRING DIAGRAM INDEX SCHEMATIC DIAGRAM FIG. 38AKS Air-Cooled Condensing Units 50/60 Hz COMPONENT ARRANGEMENT FIG. LABEL DIAGRAM NO AK AK SAFETY CONSIDERATIONS " # " " $ " $ <6<*%8* '5*= 54>48: OPERATION +38%4;%? 7 () Control Module (CM) % & ' # ( ) % *+, -./ 012, % *+ % 3' ( 4 3' ( *+ % *+ % *+ %, % *+ 53' 53' *+ % *+ % 53' *+ %, 63' *+ Bypass Relay (BPR) & ' # ( ) % 738 ( 63' % 738 & Time-Delay Relay (TDR) (Standard on 230, ) % 9 % 9 :3 ; :3 ## *8 *9 4 9 *94 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 PC 111 Catalog No Printed in U.S.A. Form 38AKS-1W Pg Replaces: New Tab 3a

2 Sequence of Operation 9 -(019 9 % (A/ 92.( B/ # (A2 * 4 9 ( ( % % ' 63' ( 63' (, *+ & 4 *+ % C 738 % % % *+ &, : D<;<846 E # 9, % /A< /A< 4 /A<@ (/B0(@/ )// )A/ :,2, )A/ : )A/ LEGEND (Fig. 1-5) AFS ATS BPR C CB CH CM CMR COMP CR EQUIP FC FCPS FM FU GND HPS IFC LLSV LPS NEC Airflow Switch Air Temperature Switch Bypass Relay Contactor, Compressor Circuit Breaker Crankcase Heater Control Module Control Module Relay Compressor Control Relay Equipment Fan Contactor Fan Cycling Pressure Switch Fan Motor Fuse Ground High-Pressure Switch Indoor Fan Contactor Liquid Line Solenoid Valve Low-Pressure Switch National Electrical Code OPS TB TC TDR TRAN Oil Pressure Switch Terminal Block Thermostat, Cooling Time-Delay Relay Transformer Terminal Block Connection Marked Terminal Unmarked Terminal Marked Splice Unmarked Splice Factory Wiring Field Control Wiring Field Power Wiring Indicates common potential. (Does not represent wiring.) (

3 Fig. 1 Wiring Schematic 38AKS 208/ , ,

4 Fig. 2 Component Arrangement 38AKS 208/ , , NOTES FOR FIG. 1 AND 2 1. Connect TRAN2 to terminal H3 for 230V, H4 for 460V, and H2 for 575V units. If 208/230V units are run with a 208V power supply connect to terminal H2. 2. Connect TRAN1 to ORN lead for 230V, lead for 460V, and WHT lead for 575V units. 3. Compressor & fan motors thermally protected. Three-phase motors protected against primary single phasing conditions. 4. Replacement of original wires must be with Type 90 C wire or its equivalent. 5. Line # indicates location of contacts, #,# signifies single-pole double-throw contacts, # signifies a normally closed contact, # signifies a normally open contact. 6. Factory wiring is in accordance with National Electrical Code (NEC). Field modifications or additions must be in compliance with all applicable codes. 7. Wiring for field power supply must be rated 60 C. Use copper, copper-clad aluminum or aluminum conductors. 8. Terminals G/6, Y2/3 & C/7 of TB3 are for class 2 (24V) field external interlock connections. Class 1 field interlock contacts must have minimum rating of 180 VA, 220V, 50/60 Hz pilot duty. Class 2 field interlock contacts must have minimum rating of 70 VA, 24V, 50/60 Hz pilot duty. 9. Thermostat for standard units: HH01AD042, HH07AT172 & HH07AT174. Subbase: HH93AZ042, HH93AZ176 & HH93AZ180. Thermostat for BDP units: P Subbase: P & P Control module internal illustrated to indicate components orientational sequence. All items illustrated are theoretically represented as internal to component. 11. The factory-supplied LLSV drop control is shipped with the 38AKS unit but field installed at the indoor unit. )

5 Fig. 3 Wiring Schematic 38AKS , , , ,

6 Fig. 4 Component Arrangement 38AKS , , , NOTES FOR FIG. 3 AND 4 1. Connect to TRAN1 240V terminal for 400 and 230V units, 200V terminal for 346V units or ORN lead for 380V units. 2. Compressor & fan motors thermally protected. Three phase motors protected against primary single phasing conditions. 3. Replacement of original wires must be with Type 90 C wire or its equivalent. 4. Line # indicates location of contacts, #,# signifies single-pole double-throw contacts, # signifies a normally closed contact, # signifies a normally open contact. 5. Factory wiring is in accordance with National Electrical Code (NEC). Field modifications or additions must be in compliance with all applicable codes. 6. Wiring for field power supply must be rated 60 C. Use copper, copper-clad aluminum or aluminum conductors. 7. Terminals G/6, Y2/3 & C/7 of TB3 are for class 2 (24V) field external interlock connections. Class 1 field interlock contacts must have minimum rating of 180 VA, 220V, 50/60 Hz pilot duty. Class 2 field interlock contacts must have minimum rating of 70 VA, 24V, 50/60 Hz pilot duty. 8. Thermostat: HH01AD042, HH07AT172 & HH07AT174. Subbase: HH93AZ042, HH93AZ176 & HH93AZ Control module internal illustrated to indicate components orientational sequence. All items illustrated are theoretically represented as internal to component. 10. The factory-supplied LLSV drop control is shipped with the 38AKS unit but field installed at the indoor unit. 11. On units with 380V, interchange fan motor connections 1 & 3 to ensure counter clockwise fan rotation. A

7 NOTES: 1. Factory wiring in accordance with the NEC. Any field modifications or additions must be in compliance with all applicable codes. 2. All field interlock contacts must have minimum rating of 180 va pilot duty plus capacity required for field-installed equipment. All field interlock contacts in the 24-v control circuit must have minimum rating of 70 va pilot duty plus capacity required for fieldinstalled equipment. 3. For internal unit wiring, refer to Fig. 1-4 or unit wiring label diagram. Power for TB1 and TB2 follows: UNIT POWER (V-Ph-Hz) TB1 POWER (V-Ph-Hz) TB2 POWER (V-Ph-Hz) 208/ The following components are not located in the 38AKS unit control box: LLSV1, LLSV2, field control thermostat, AFS, alarm shut-off switch, and alarm or light. Fig. 5 Typical Field Wiring Electronic Arrangement Thermostat, Liquid-Line Solenoid Valves, and Power 2

8 Field-Installed Accessories # 8 & 348% ;:;D '%48% E 5;A2>4//9 ;%<? 4 F A/ 5 )A/ F A/ 5 )// F,/ 5 (/B0(@/ F A/ 5 5;A2>4//9 F,/ 5 E 3 & %89 $ A7(/ & 8 D84 *9 *9 *94 5;A2>4//9 *9 *9 *94 C ' # A 5% D4' A/ 5,/ 5 (@/ ' # 9? 9 * 3 ; 5;A9==@() () (/ 9(, & ( 99, " 4 %7( ( 5D8 ) " 5D8 A " 8 () " * %7@ G( 69 5D8 " * %7@ * 6( 5D %4;%? ;% ' 0 :# & 6 4+7<;% 5<4: 38<''$8< #4; *;%86 4 (/B0(@/@A/ 5 )A/@A/ 5,2,@A/ 5 E,/:H./(B/9 )A/@A/ # +,2, * 3 ; 5%/945B,) GRA JUMPER TDR C1 C1 C2 REMOVE GRA WIRE C1 C1A C2 WHT WHT WHT WHT Fig. 6 Time Delay Relay Wiring TB2 HGR HOT GAS BYPASS SOLENOID TB FIELD CONTROL THERMOSTAT TC1 TC2 ON 115-V CIRCUIT AUTO CB1 115V 24-V CIRCUIT LEGEND CB Circuit Breaker HGR Hot Gas Relay LLSV Liquid Line Solenoid Valve TB Terminal Board TC Thermostat, Cooling CB2 24V R Y1 Y2 W1 W2 G C X LLSV2 HGR TB3 Fig. 7 Hot Gas Bypass Control Wiring Schematics B

9 ; A/ 5,/ 5 ',/ 5 + * 4 < 9 : & % C % ( 8 #+9 9 # B : #+9 C & #+9 ) 8 #+9 # ' 9A, 3 #+9 A #+9 2 B + ' # 3 ' #. % ' #. Fig. 8 Fan Motor Locations. * (( #*9 ' # 9/ 8 %) C & * 9/ %9 %, C & ' # 9/ (/B0(@/F # 99 )A/,2,F 99 8 %B C & * 9( 8 #+9 (@ #*7 (@ #*7 & % (@ #*7 % C 9@ + + & $ ) $ ) 9/ % 9) * (9 #*9 + $ ' # 9/ C & $ ' # 9/ 8 C & 7 NOTES: 1. Transformer shield is field-supplied (575v transformer part no. HT01AH854 is field-supplied). 2. Exact mounting locations on divider panel for capacitor, Motormaster controller, and transformer are at discretion of installer. There are no wires or obstructions on reverse side of divider panel to interfere with mounting screws. Fig. 9 Mounting Motormaster Control Capacitor, and 460-V or 575-V Transformer 9, # )A/,2,,2, 5%/945B,)? + ' #. : * (( #*9 ' # 99 * (9 #*9 ' # ' # 99 ' #..

10 SENSOR RED MOTORMASTER CONTROLLER FU1 FCI P1 OR PURPLE FM T8 OR RED T4 OR T5 OR BLACK T1 OR E GRN- FC RED BRN 2 FM FC ORN PNK 3 1 GRN- LEGEND FC Fan Contactor FM Fan Motor FU Fuse VIO GRA Fig. 10 Motormaster Controller Wiring; 38AKS 208/230-Volt Units FM3 (38AKS044 ONLY) GRN- SENSOR RED MOTORMASTER CONTROLLER FCI ,575V 230V P1 OR PURPLE T8 OR RED T4 OR FM1 T5 OR BLACK T1 OR E GRN- FC RED BRN 2 FM FC ORN PNK 3 1 GRN- LEGEND FC Fan Contactor FM Fan Motor VIO GRA Fig. 11 Motormaster Controller Wiring; 38AKS 460 and 575-Volt Units 2 3 FM3 (38AKS044 ONLY) GRN- 9/

11 9A 8 < ' # 9( 92 8 ' % 5 9B $ ))/ ' # 9@ ' # 9) 9. * & & (/ 3 (9 8 & Fig. 12 Location of Propeller on Motor Shaft from Outside of Orifice Ring Fig. 13 Sensor Installation HEADER END 38AKS028 HEADER END 38AKS034 HEADER END 38AKS044 Fig. 14 Motormaster Controller Sensor Locations on Condenser Coil Header Ends, 38AKS Units 99

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13 CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE MOUNTING TEMPLATE FOR MOTORMASTER CONTROL 9@

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16 Copyright 2000 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 PC 111 Catalog No Printed in U.S.A. Form 38AKS-1W Pg Replaces: New Tab 3a