Installation Instructions

PART NUMBER: 001A00 002A00 SMALL PACKAGED PRODUCTS 1---1/2 to 5 TONS (50/60 Hz) MOTORMASTER II HEAD PRESSURE CONTROLLER Installation Instructions NOTE: Read the entire instruction manual before starting the installation. SAFETY CONSIDERATIONS Installation and servicing of this equipment can be hazardous due to mechanical and electrical components. Only trained and qualified personnel should install, repair, or service this equipment. Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on this equipment, observe precautions in the literature, on tags, and on labels attached to or shipped with the unit and other safety precautions that may apply. Follow all safety codes. Installation must be in compliance with local and national building codes. Wear safety glasses, protective clothing, and work gloves. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Recognize safety information. This is the safety -alert symbol. When you seethissymbolon theunitand in instructions ormanuals, be alert to the potential for personal injury. Understand these signal words; DANGER, WARNING, and CAUTION. These words are used with the safety -alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could resultin personalinjury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation. Follow all safety codes. Wear safety glasses and work gloves. Have a fire extinguisher available.! WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could cause personal injury or death. Before performing service or maintenance operations on unit, turn off main power switch to unit and install lockout tag. Ensure electrical service to rooftop unit agrees with voltage and amperage listed on the unit rating plate. INTRODUCTION These instructions cover the installation of the Motormaster II Controller head pressure control device. Refer to the Installation section for directions. Louvered panels are required for this installation; see Item 9 in the Installation section of this document and Tables 1 and 2 for more information. Table 1 Add Louvered Panels to These Units 48ES 574D 48GS 582A PY1P --- B 48GX 583A PY2P --- B 48SD 574A 48SZ 674A 50ES 704D 50GS 701A PA1P --- B 50GX 702A PA2P --- B 50JS 601A PH1P --- B 50JX 602A PH2P --- B 50SD 704A 50SZ 604A Table2 DoNOTAddLouveredPanelstoTheseUnits 48VL 577C 50SX 557A 50HX 657A 50VL 707C 50ZP 564A PA1Z 50ZH 664A PH1Z 50ZHA 664B PH3Z 50ZPA 564B PA3Z 50JZ* 602B* 48GP* 583B* 48CE* 574C 48DT* 677B 48DU* 577B 48JZ* 583B* 48XP* 574B* 48XZ* 674B 50CE* 704C* 50CR* 604C* 50DT* 607B* 50DU* 707B* 50GL* 702B* 50XP* 704B* 50XZ* 604B* *Louvered panels are standard on these units. 1

3. Disconnect outdoor-fan motor (OFM). (See Wiring Schematic, Fig. 8 or 9.) 4. Remove OFM wires from unit control box. 5. Mount Motormaster II Controller on unit. Refer to Fig. 3-6. The controller must be mounted vertically with the leads at the bottom. Using the Mounting Template (Fig. 10) as a guide, drill mounting holes. To ensure electrical ground, insert star washers (supplied with the controller) under the heads of mounting screws. NOTE: Field -supplied conduit must be used between controller and access panel (or wire into unit entrance). 6. Determine sensor location by referring to Fig. 11-38. Route sensor wire through bottom of Motormaster II Controller (Fig. 1) to sensor location specified. Prior to installation, apply conductive grease supplied with accessory to contact surface of sensor.! CAUTION COMPONENT DAMAGE HAZARD Failure to follow this caution may result in component damage. Sensor assembly is delicate. Handle with care. Motormaster II Controller Interior Fig. 1 - Controller Interior INTEGRAL WIRE TIE C00102 7. Attach sensor to top half of header tube as shown in Fig. 2. Installed sensor must be left uninsulated. 8. Power wiring must comply with all local and National Electrical Code (NEC) and International Electric Code (IEC) requirements. Refer to Fig. 8 and 9 for power wiring connections. Coil up all excess wire and secure. (Yellow and blue wires, from controller, must run to unit contactor and connect on the load side.)! CAUTION 3/8" HEADER TUBE CONDUCTIVE GREASE NOTE: INSTALLED MUST BE UNINSULATED. Sensor Connection Details Fig. 2 - Sensor Connection Details DESCRIPTION AND USAGE C00103 The Motormaster II head pressure controller is a cycle control device activated by a temperature sensor mounted on a header tube of the outdoor coil (see Fig. 1). It is designed to cycle the outdoor-fan motors to maintain the saturated condensing temperature within normal operating limits of approximately 130 to 110_F high (54_C to 43_C), 70 to 50_F low (21 to 10_C). The controller maintains working head pressure at low ambient temperatures down to -20_F (-29_C) when properly installed. INSTALLATION 1. Disconnect power to unit. Install lockout tag. 2. Remove unit access panel. UNIT OPERATION AND COMPONENT DAMAGE HAZARD Failure to follow this caution may result in improper unit operation or component damage. All wires must be secured so that they are not in contact with unit tubing. 9. To prevent wind cross-currents form causing abnormally low condensing temperatures, louvered panels are required on some models. See Table 1 and 2 for models requiring/not requiring louvered panels. 10. Reconnect power to the unit. The Motormaster II head pressure controller is equipped with an alternate operating mode. When this mode is selected, the controller shifts the fan cycle sequence to effectively raise the average condensing temperature approximately 20_F higher than the standard operating mode. In this alternate mode, the outdoor fan begins cycling at higher outdoor ambient temperatures. This mode should only be used if the evaporator coil shows signs of frosting at low outdoor ambient temperatures. To select the alternate operating mode, move the jumper wire on the Motormaster II control board from reset T1 to T2. Refer to Fig. 7 for thermistor resistance vs. temperature. 2

MOTORMASTER II WIRE LEADS BULKHEAD COMPRESSOR CONDENSER COIL SLICE PLASTIC SERVICE CAP DN UNIT AND FEED LEADS MOTORMASTER II 50ZP, ZH, 564A/664A, PA1Z/PH1Z UNITS Fig. 3 - Mounting Locations C00108 MOTORMASTER II CONTROLLER 1 3/8 MOTORMASTER II CONTROLLER EVAP COIL ACCESS PANEL CONDUIT 6 FROM BOTTOM OF UNIT CONDUIT HOLE FOR CONDUIT CONNECTION 50SX/ 557A 50HX/ 657A Fig. 4 - Mounting Locations BULKHEAD C00141 MOTORMASTER II MOTORMASTER II WIRE LEADS SLICE PLASTIC SERVICE CAP ON UNIT AND FEED LEADS COMPRESSOR 48/50GS, GX, JS, JX, GP, GL, JZ UNITS 582A/701A, 583A/702A, 601A, 602A, 583B, 702B, 602B,683B PY1P-B/PA1P-B, PY2P-B/PA2P-B, PH1P-B, PH2P-B SMALL CABINET Fig. 5 - Mounting Locations-Small Cabinet C00109 BULKHEAD MOTORMASTER II MOTORMASTER II WIRE LEADS SLICE PLASTIC SERVICE CAP ON UNIT AND FEED LEADS COMPRESSOR 48/50GS, GX, JS, JX, GP, GL, JZ UNITS 582A/701A, 583A/702A, 601A, 602A, 583B, 702B, 602B, 683B PY1P-B/PA1P-B, PY2P-B/PA2P-B, PH1P-B, PH2P-B LARGE CABINET Fig. 6 - Mounting Locations-Large Cabinet 3 C00110

Table 3 Sensor Location Index MODEL NUMBER FIGURE NUMBER 50JX/602A/PH2P---B 024---048 Fig. 11 50JX/602/PH2P---B 060 AND 50JS/601A/PH1P---B 018---030 Fig. 12 50JS/601A/PH1P---B 036---060 Fig. 13 48GS/582A/PY1P---B/50GS/701A/PA1P---B 018---036 AND 48GX/583A/PY2P---B/50GX/702A/PA2P---B 024---030 Fig. 14 48GS/582A/PY1P---B/50GS/701A/PA1P---B 042---060 AND 48GX/583A/PY2P---B/50GX/702A/PA2P---B 036---060 Fig. 15 48GP/50GL/583B/702B 024---048 AND 50GL 024---048 Fig. 16 48GP/50GL/583B/702B 060 Fig. 17 48/50JZ/683B/602B 024---060 Fig. 18 50ZP/564A/PA1Z 024---042 Fig. 19 50ZP/564A/PA1Z 048---060 Fig. 20 50ZH/664A/PH1Z 024---042 Fig. 21 50ZH/664A/PH1Z 048---060 Fig. 22 50SZ/557A 024---060 Fig. 23 50HX/657A 048---060 Fig. 24 50HX/657A 024---042 Fig. 25 48ES/50ES/574D/704D 018---060 Fig. 26 48XP/50XP/48CE/50CE/577B/574C/704B/704C 024---060 Fig. 27 48DT/50DT/607B/677B 024---042 Fig. 28 48DU/50DU/48BL/50VL/577B/707B/577C/707C 042---060 Fig. 29 48SD/50SD/574A/704A/PY3P/PA3P 024---060 Series 301 AND A Fig. 30 48SD/50SD/574A/704A/PA3P/PY3P 024---042 Series 311 AND B Fig. 31 48DT/50DT/677B/607B 048---060 Fig. 32 48DU/50DU/577B/707B 024---036 AND 48VL/50VL/577C/707C 036---042 Fig. 33 48SZ/50SZ/674A/604A 024---060 Fig. 34 48VL/50VL/577C/707C 018---030 AND 060 Fig. 35 48XZ/50XZ/50CR/674B/604B 024---060 AND 604C 030---060 Fig. 36 50ZHA/50ZPA/564B/664B/PA3Z/PH3Z 024---042 Fig. 37 50ZHA/50ZPA/564B/664B/PA3Z 048---060 AND PH3Z048 AND PH3P 060 Fig. 38 50,000 40,000 RESISTANCE (OHMS) 30,000 20,000 10,000 0 20 40 60 80 100 120 140 TEMPERATURE (F) Thermistor Resistance vs Temperature Fig. 7 - Thermistor Resistance vs. Temperature Chart C00104 4

OUTDOOR-FAN MOTOR SINGLE-PHASE UNITS UNIT CONTROL BOX L1 L2 048.060 UNITS C T1 21 T2 23 BLK 3-PHASE UNITS UNIT CONTROL BOX C C 21 23 BLK BLK BRN THIS WIRE RELOCATED FROM BASE UNIT CONTACTOR VIEW A BLU BLK VIEW A 208/230-V UNITS ONLY OF1 DR OF2 MOTORMASTER II CONTROL BOX ORANGE BLK RED 460 230 208 C OFC L2 T2 OFC L1 T1 BLK O C LOW VOLTAGE CONTROL BOX* BLK BLU 460-V UNITS ONLY OFR 1 3 BLU TRAN (SEE NOTE #1) A C 24 RED BRN R C LOGIC BOARD W1 T2 T1 S2 S1 GRN- C1 ORG OFC C2 BRN 3 COIL 1 (SEE NOTE #2) 4 5 Field supplied relay for all Heat pumps should be located in the control box of the unit. C DR OFC OFR TRAN LEGEND Contactor Defrost Relay Outdoor-Fan Contactor Outdoor-Fan Relay Transformer Field Wiring RELOCATE JUMPER TO TERMINAL T2 FOR ALTERNATE OPERATION. *In low voltage control box, O is orange and C is Brown (common). NOTES: 1. Motomaster II transformer is wired for 460-v supply; it must be rewired for 208/230-v application. Be sure to insulate unused tap. 2. Relay, part no. HN61KB324, is field supplied and normally closed. 3. 002A00 transformer only contains a 400-v. supply. CONTROL THERMISTOR Fig. 8 - Wiring Schematic Heat Pumps C00106 5

SINGLE-PHASE UNITS UNIT CONTROL BOX C L1 T1 L2 T2 BLU 3-PHASE UNITS UNIT CONTROL BOX C 21 C 23 BLU BLK OUTDOOR-FAN MOTOR THIS WIRE RELOCATED FROM BASE UNIT CONTACTOR MOTOMASTER CONTROL BOX BLK SEE NOTE 460 230 208 C ORANGE RED OFC L2 T2 OFC L1 T1 BLK A C 24 RED BRN R C LOGIC BOARD GRN- C1 ORG OFC C2 BRN W1 T2 T1 S2 S1 RELOCATE JUMPER TO TERMINAL T2 FOR ALTERNATE OPERATION LEGEND C - Contractor OFC - Outdoor- Fan Contactor TRAN - Transformer NOTE: 1. Motormaster II is wired for 460-v supply; it must be rewired for 208/230-v application. Be sure to insulate unused tap. 2. 002A00 Transformer only contains a 400V supply. CONTROL THERMISTOR Fig. 9 - Wiring Schematic, AC and Gas PACs C00140 6

MOUNTING TEMPLATE 5-3/8-in. REF [136.5] TOP CUT ALONG SOLID BORDER LINES TO REMOVE TEMPLATE DRILL 9/64-in. [3.6] DIAMETER HOLE TEMPLATE FOR MOTORMASTER II 001A00 NOTE: Dimensions in [ ] are in millimeters 5-in. [127] 9-in. REF [228.6] DRILL 9/64-in. [3.6] DIAMETER HOLE 2-3/8-in. REF [60.3] 1-1/8-in. REF [28.6] Fig. 10 - Controller Mounting Template C00105V2 7

50 JX, 602A, PH2P-B 024 Left Back 50 JX, 602A, PH2P-B 042 Left Back 50JS.601A.PHIP-B 036 BACK 50JS.601A.PHIP-B 048 BACK 50 JX, 602A, PH2P-B 030/036 Left Back 50 JX, 602A, PH2P-B 048 Left Back Fig. 11 - Sensor Mounting Location A07440 50JS.601A.PHIP-B 042 50JS.601A.PHIP-B 060 BACK BACK Fig. 13 - Sensor Mounting Location A07442 50JX, 602A,PH2P-B 060 BACK 50JS, 601A,PH1P-B 024 BACK RETURN BEND END 48GS, 582A, PY1P-B, 50GS, 701A, PA1P-B, 018, 024, 030 & 036 48GX, 583A, PY2P-B, 024, 50GX, 702A, PA2P-B, 024 BACK 50JS, 601A,PH1P-B 018 BACK 50JS, 601A,PH1P-B 030 BACK Fig. 12 - Sensor Mounting Location A07441 RETURN BEND END 50/48GX030, 702A/583A030, PA2P/PY2P 030 (B SERIES) BACK Fig. 14 - Sensor Mounting Location A07443 8

RETURN BEND END 48GS.582A,PY1PB042 50GS,701A,PY2PB042 48GX,583A,PY2P-B 036 50GX,702A,PA2P-B 036 BACK RETURN BEND END 50/48GS048 701A/582A048 PA1P/PY1P048 (B SERIES) BACK 48GP024/50GL024 583B024/702B024 BACK 48GP030/50GL030 583B030/702B030 BACK RETURN BEND END 50/48GS/060 701A/582A060 PA1P/PY1P060 48/50GX042&048 583A/702A042&048 PY2P/PA2P042&048 (B SERIES) BACK RETURN BEND END 48/50GX060 702A/582A/583A060 PA2P/PY1P/PY2P060 (B SERIES) BACK Fig. 15 - Sensor Mounting Location A07444 48GP036/50GL036 583B036/702B036 BACK 48GP042, 048/50GL042, 048 583B042, 048/702B042, 048 BACK A07445 Fig. 16 - Sensor Mounting Location 9

48/50JZ024 683B/602B024 BACK 48/50JZ030, 036 683B/602B030, 036 BACK 48GP060/50GL060 583B060/702B060 BACK Fig. 17 - Sensor Mounting Location A07446 48/50JZ042, 048 683B/602B042, 048 BACK 48/50JZ060 683B/602B060 BACK Fig. 18 - Sensor Mounting Location A07447 10

50ZP, 564A, PA1Z024 50ZP, 564A, PA1Z030 50ZP/564A/PA1Z048 50ZP/564A/PA1Z060 Fig. 20 - Sensor Mounting Location A07449 50ZP, 564A, PA1Z036 50ZP, 564A, PA1Z042 Fig. 19 - Sensor Mounting Location A07448 11

50ZH/664A/PH1Z024 50ZH/664A/PH1Z030 50ZH/664A/PH1Z060 50ZH/664A/PH1Z048 Fig. 22 - Sensor Mounting Location A07451 50ZH/664A/PH1Z036 50ZH/664A/PH1Z042 Fig. 21 - Sensor Mounting Location A07450 12

50SX/557A 024 50SX/557A 030/036 50HX/657A/048 Sensor Location 50HX/657A/060 Fig. 24 - Sensor Mounting Location Sensor Location A07453 50SX/557A 042/048 50SX/557A 060 Fig. 23 - Sensor Mounting Location A07452 13

Sensor Location Sensor Location 50HX/657A024 50HX/657A030 Sensor Location Sensor Location 50HX/657A036 50HX/657A042 Fig. 25 - Sensor Mounting Location A07454 14

48ES-018 574DNW018 50ES-018 704DNX018 BACK 48ES-024 574DNW024 50ES-024 704DNX024 BACK 48ES-030 574DNW030 50ES-030 574DPW030 704DNX030 704DPX030 BACK 48ES-036 574DNW036 50ES-036 574DPW036 574DEW036 704DNX036 704DPX036 704DEX036 BACK 48ES-048 50ES-048 BACK 574DNW048 574DPW048 574DEW048 704DNX048 704DPX048 704DEX048 48ES-060 50ES-060 574DNW060 574DPW060 574DEW060 704DNX060 704DPX060 704DEX060 BACK Fig. 26 - Sensor Mounting Location A07403 15

16 48XP-024 574BNW024 48XP-030 574BNW030 50XP-024 704BNX024 50XP-030 704BNX030 48CE-024 574CNW024 48CE-030 574CNW030 50CE-024 704CNX024 50CE-030 704CNX030 48XP-036 574BNW036 50XP-036 574BPW036 48CE-036 704BNX036 50CE-036 704BPX036 48XP-042 574BNW042 50XP-042 574BPW042 48CE-042 704BNX042 50CE-042 704BPX042 48ES-042 574CNW042 50ES-042 574CPW042 704CNX042 704CPX042 574DNW042 574DPW042 574DEW042 704DNX042 704DPX042 704DEX042 48XP-048 574BNW048 50XP-048 574BPW048 48CE-048 704BNX048 50CE-048 704BPX048 574CNW048 574CPW048 704CNX048 704CPX048 48XP-060 574BNW060 50XP-060 574BPW060 48CE-060 704BNX060 50CE-060 704BPX060 574CNW060 574CPW060 704CNX060 704CPX060 A07404 Fig. 27 - Sensor Mounting Location

48DT-024 50DT-024 677BNW024 607BNX024 48DT-030 50DT-030 677BNW030 607BNX030 48DT-036 50DT-036 677BNW036 607BNX036 48DT-042 50DT-042 677BNW042 607BNX042 Fig. 28 - Sensor Mounting Location A07405 17

48DU-042 48DU-048 50DU-042 50DU-048 48VL-048 50VL-048 577BNW048 577BNW042 707BNX042 707BNX048 577CNW048 707CNX048 Fig. 29 - Sensor Mounting Location 48DU-060 50DU-060 577BNW060 707BNX060 A07406 18

48SD-024 574ANW024 50SD-024 704ANX024 PY3P024 PA3P024 301 and A Series 48SD-030 574ANW030 50SD-030 574APW030 704ANX030 704APX030 PY3P024 PA3P024 301 and A Series 48SD-036 574ANW036 50SD-036 574APW036 574AEW036 704ANX036 704APX036 704AEX036 PY3P036 PA3P036 301 and A Series 48SD-042 574ANW042 50SD-042 574APW042 574AEW042 704ANX042 704APX042 704AEX042 PY3P042 PA3P042 301 and A Series 48SD-048 50SD-048 574ANW048 574APW048 574AEW048 704ANX048 704APX048 704AEX048 PY3P048 PA3P048 301, 311, A and B Series 48SD-060 574ANW060 50SD-060 574APW060 574AEW060 704ANX060 704APX060 704AEX060 PY3P060 PA3P060 301, 311, A and B Series Fig. 30 - Sensor Mounting Location A07408 19

48SD-024 574ANW024 50SD-024 704ANX024 PA3P024 PY3P024 311 and B Series 48SD-030 574ANW030 50SD-030 574APW030 704ANX030 704APX030 PY3P030 PA3P030 311 and B Series 48SD-036 574ANW036 50SD-036 574APW036 574AEW036 704ANX036 704APX036 704AEX036 PY3P036 PA3P036 311 and B Series Fig. 31 - Sensor Mounting Location 48SD-042 574ANW042 50SD-042 574APW042 574AEW042 704ANX042 704APX042 704AEX042 PY3P042 PA3P-042 311 and B Series A07415 20

48DT-048 50DT-048 677BNW048 607BNX048 48DT-060 50DT-060 677BNW060 607BNX060 Fig. 32 - Sensor Mounting Location A07409 48DU-024 50DU-024 577BNW024 707BNX024 48DU-030 50DU-030 48VL-036 48VL-042 50VL-036 50VL-042 577BNW030 707BNX030 577CNW036 577CNW042 707CNX036 707CNX042 48DU-036 50DU-036 577BNW036 707BNX036 Fig. 33 - Sensor Mounting Location A07410 21

22 48SZ-024 674ANW024 50SZ024 604ANX024 48SZ-030 674ANW030 50SZ-030 674APW030 604ANX030 604APX030 48SZ-036 674ANW036 50SZ-036 674APW036 604ANX036 604APX036 48SZ-042 674ANW042 50SZ-042 674APW042 604ANX042 604APX042 48SZ-048 674ANW048 50SZ-048 674APW048 604ANX048 604APX048 48SZ-060 674ANW060 50SZ-060 674APW060 604ANX060 604APX060 A07411 Fig. 34 - Sensor Mounting Location

48VL-018 50VL-018 577CNW018 707CNX018 48VL-024 48VL-030 50VL-024 50VL-030 577CNW024 577CNW030 577CPW030 707CNX024 707CNX030 707CPX030 48VL-060 50VL-060 577CNW060 577CPW060 577CEW060 707CNX060 707CPX060 707CEX060 Fig. 35 - Sensor Mounting Location A07412 23

24 48XZ-036 674BNW036 50XZ-036 674BPW036 50CR-036 604BNX036 604BPX036 604CNX036 604CPX036 48XZ-048 674BNW048 50XZ-048 674BPW048 50CR-048 604BNX048 604BPX048 604CNX048 604CPX048 48XZ-060 674BNW060 50XZ-060 674BPW060 50CR-060 604BNX060 604BPX060 604CNX060 604CPX060 48XZ-042 674BNW042 50XZ-042 674BPW042 50CR-042 604BNX042 604BPX042 604CNX042 604CPX042 48XZ-024 674BNW024 48XZ-030 674BNW030 50XZ-024 674BPW030 50XZ-030 604BNX024 50CR-024 604BNX030 50CR-030 604BPX030 604CNX030 604CPX030 A07413 Fig. 36 - Sensor Mounting Location

50ZHA024 50ZPA024 564BNW024 664BNX024 PA3Z024 PH3Z024 50ZHA030 50ZPA030 564BNW030 564BPW030 664BNX030 664BPX030 PA3Z030 PH3Z030 Fig. 37 - Sensor Mounting Location 50ZHA036 50ZPA036 564BNW036 564BPW036 664BNX036 664BPX036 PA3Z036 PH3Z036 A07414 25

50ZHA042 50ZPA042 564BNW042 564BPW042 664BNX042 664BPX042 PA3Z042 PH3Z042 50ZPA048 50ZHA048 564BNW048 564BPW048 664BNX048 664BPX048 PA3Z048 PH3Z048 Fig. 38 - Sensor Mounting Location 50ZHA060 50ZPA060 564BNW060 564BPW060 664BNX060 664BPX060 PA3Z060 PH3P060 A07416 Copyright 2007 CAC / BDP D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 06/07 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 26 Catalog No: IIK---01 Replaces: IIK 555A -18-37