Air-Cooled Scroll Compressor Chillers Models AGZ 010A to AGZ 034A Models AGZ 026B to AGZ 130B. Revised Electrical Data Tables.

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Edith Marsha Kennedy
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1 Supplement #1 -A, -B Air-Cooled Scroll Compressor Chillers Models 010A to 034A Models 026B to 130B Revised Electrical Data Tables Replaces Electrical Tables in PM -6, IOMM 1, and IOMM -5 Engineered for flexibility and performance.

2 Table of Contents Introduction...3 Standard Ambient A 034A, Single Point A 034A, Electrical Data, Single Point A 034A, Compressor and Motor Amps, Single Point A 034A, Field Wiring Data, Single Point BM/BS 070BM/BS, Single Point BM/BS 070BM/BS, Electrical Data, Single Point (105 F & below) BM/BS 070BM/BS, Compressor and Motor Amps, Single and Multi-Point (Up to 105 F) BM/BS 070BM/BS, Field Wiring, Single Point BM/BS 130BM/BS, Single Point BM/BS 130BM/BS, Electrical Wiring, Single Point (Up to 105 F) BM/BS 130BM/BS, Compressor and Motor Amps, Single and Multi-Point (Up to 105 F) BM/BS - 130BM/BS, Field Wiring, Single Point BM/BS 070BM/BS, Multi-Point BM/BS 070BM/BS, Electrical Data, Multi-Point (Up to 105 F) BM/BS - 070BM/BS, Field Wiring, Multi-Point BM/BS - 130BM/BS, Multi-Point BM/BS - 130BM/BS, Field Wiring Data BM/BS - 130BM/BS, Electrical Data, Multi-Point (Up to 105 F) High Ambient BB/BH 070BB/BH, Single Point BB/BH 070BB/BH, Electrical Data, Single Point BB/BH 070BB/BH, Compressor and Motor Amps, Single and Multi-Point (106 F to 125 F) BB/BH - 070BB/BH, Electrical Data, Multi-Point (106 F to 125 F) BB/BH 130BB/BH BB/BH 130BB/BH, Electrical Data, Single Point (Above 105 F) BB/BH 130BB/BH, Compressor and Motor Amps, Single and Multi-Point (106 F to 125 F) BB/BH 130BB/BH, Electrical Data, Multi-Point (106 F) Electrical Notes...23 Field Wiring Diagrams A - 034A, Typical Field Wiring B 130B, Typical Field Wiring...25 Issued October 2003 "McQuay" is a registered trademark of McQuay International 2003 McQuay International Illustrations and information cover the McQuay International products at the time of publication and we reserve the right to make changes in design and construction at anytime without notice. 2 Supplement #1

3 Introduction Changes to the electrical data for -A (10 to 34 tons, single circuit) and -B (26 to 130 tons, two circuit) are being made to provide electrical requirements that are more conducive to individual applications. The same electrical changes are being made to the condensing unit models ACZ-A (10 to 39 tons) and ACZ-B (30 to 155 tons). Current literature (PM -6, PM ACZ-3, IOMM -5, IOMM ACZ-3) lists electrical requirements for all applications operating in ambient temperatures up to approximately 125 degrees for -B/ACZ-B and 115 degrees for -A/ACZ-A. Obviously, there are many installations where the expected ambient temperatures will be considerably lower, resulting in smaller electrical requirements. In these lower temperature cases, there can be considerable installation cost savings by using smaller and more appropriate electrical requirements. For -A/ACZ-A, minor electrical changes and updates are being made. For -B/ACZ-B, the electrical data is divided into two classifications based on the ambient environment where the unit will operate. Standard units operate in ambient temperatures of 105 degrees Fahrenheit or less. s with the high ambient operation option will be used in 106 degrees Fahrenheit and higher ambient temperatures. The standard -B/ACZ-B unit will have new and smaller electrical requirements where possible. This new electrical data will be listed on the unit s nameplate shipping from the factory. We are not able to provide a new nameplate for units already installed. The -B/ACZ-B units with the high ambient operation option will include not only the addition of a small fan with a filter in the air intake to cool the control panel, but also a different unit nameplate that lists the larger electrical requirements. Except for a few minor corrections, the data provided in the product manuals and IOMM listed above will be the same electrical data that is provided for this option. This supplement amends and adds to the electrical data for the product manuals and Installation Operation Maintenance Manuals (IOMM) listed above. Use this information and option selection for all future needs. The next generation of product manuals and IOMM will have these changes included in the revised brochures. Model Codes Model Code Evaporator Ambient -BH Packaged High -BB Remote High -BS Packaged Standard -BM Remote Standard NOTE: BH and BB (High Ambient) have the same electrical characteristics. BS and BM (Standard Ambient) have the same electrical characteristics. Supplement #1 3

4 Standard Ambient 010A 034A, Single Point 010A 034A, Electrical Data, Single Point Table 1 Minimum Circuit Ampacity (MCA) Quantity Field Wire Power Supply Wire Gauge 75C Quantity Hub Nominal In. (mm) Field Recommended Maximum (25) A (25) (25) (25) (25) A (25) (25) (25) (25) A (25) (25) (25) (32) A (32) (25) (25) (32) A (32) (25) (25) (38) A (38) (25) (25) / (38) A / (38) (25) (25) See page 23 for all Electrical Data notes. 4 Supplement #1

5 010A 034A, Compressor and Motor Amps, Single Point Table 2 Rated Load Amps Compressors No. 1 No. 2 F.L. Amps Motor (Each) No. of Mtrs L.R. Amps Motor (Each) Locked Rotor Amps Compressors Across-The-Line No. 1 No A A A A A A A See page 23 for all Electrical Data notes. Supplement #1 5

6 010A 034A, Field Wiring Data, Single Point Table 3 010A 013A 017A 020a 025A 029a 034A Wiring to Standard Power Block Terminal Maximum Terminal Amps Connector Wire Range (Copper Wire Only) Wiring to Optional Disconnect Switch Disconnect AMP Rating Factory Option Connector Wire Range (Copper Wire Only) GA 2/0 100 #8-1/ GA 2/0 100 #8-1/ GA 2/0 63 #1-# GA 2/0 63 #1-# GA 2/0 100 #8-1/ GA 2/0 100 #8-1/ GA 2/0 63 #1-# GA 2/0 63 #1-# GA 2/0 100 #10-1/ GA 2/0 100 #10-1/ GA 2/0 63 #1-# GA 2/0 63 #1-# GA 2/0 225 #2-4/ GA 2/0 225 #2-4/ GA 2/0 100 #8-1/ GA 2/0 100 #10-1/ GA 2/0 225 #2-4/ GA 2/0 225 #2-4/ GA 2/0 100 #8-1/ GA 2/0 100 #10-1/ GA 2/0 225 #2-4/ GA 2/0 225 #2-4/ GA 2/0 100 #8-1/ GA 2/0 100 #10-1/ GA 400 kcmil 225 #2-4/ GA 400 kcmil 225 #2-4/ GA 2/0 125 #3-3/ GA 2/0 100 #10-1/0 All Electrical Data notes are on page Supplement #1

7 026BM/BS 070BM/BS, Single Point 026BM/BS 070BM/BS, Electrical Data, Single Point (105 F & below) Table 4 Minimum Circuit Ampacity (MCA) Power Supply Quantity Field Wire Wire Gauge 75C Recomm d. Or HACR Max. Or HACR / # B # # # / / B # # # / / B # # # / / B # # # / / B # # # / / B # # # / / B / # # / B / # # B / # # B / # # NOTES: 1. s operating in ambient temperatures of 95 F (35 C) and above must use the Maximum size. 2. All Electrical Data notes are on page Conduit hubs are not provided. Supplement #1 7

8 026BM/BS 070BM/BS, Compressor and Motor Amps, Single and Multi- Point (Up to 105 F) Table 5 Rated Load Amps Compressors No. 1 No. 3 No. 5 No. 2 No. 4 No. 6 F.L.Amps Motors (Each) No. Of Motors Motors Locked Rotor Amps Compressors Across-The-Line (Each) No.1 No. 3 No. 5 No.2 No.4 No B B B B B B B B B B All Electrical Data notes are on page Supplement #1

9 026 BM/BS 070BM/BS, Field Wiring, Single Point Table 6 Terminal Amps Wiring to Standard Power Block Connector Wire Range (Copper Wire Only) Wiring to Optional Non-d Disconnect Switch Disconnect Connector Wire Range (Copper Wire Only) GA 2/0 225 # kcmil GA 2/0 225 # kcmil 026B GA 2/0 150 # kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil 225 # kcmil #4 500kcmil 225 # kcmil 030B GA 2/0 150 # kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil 225 # kcmil #4 500kcmil 225 # kcmil 035B GA 2/0 150 # kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil 225 # kcmil #4 500kcmil 225 # kcmil 040B GA 2/0 150 # kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil 225 # kcmil #4 500kcmil 225 # kcmil 045B GA 2/0 150 # kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil 250 #6-350 kcmil #4 500kcmil 250 #6-350 kcmil 050B GA 2/0 150 # kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil 250 #6-350 kcmil 055B GA 2/0 250 #6-350 kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil kcmil -500 kcmil 060B GA 2/0 250 #6-350 kcmil GA 2/0 150 # kcmil GA 2/0 150 # kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil kcmil -500 kcmil 065B #4 500kcmil 250 #6-350 kcmil GA 2/0 250 # kcmil GA 2/0 150 # kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil kcmil -500 kcmil 070B #4 500kcmil 250 #6-350 kcmil #4 500kcmil 250 # kcmil GA 2/0 150 # kcmil All Electrical Data notes are on page 23. Supplement #1 9

10 075BM/BS 130BM/BS, Single Point 075BM/BS 130BM/BS, Electrical Wiring, Single Point (Up to 105 F) Table 7 Minimum Circuit Ampacity (MCA) Power Supply Quantity Field Wire Wire Gauge 75C Recomm d. Or HACR Max. Or HACR / / B / / # B / / B / / B / / (2) (2) B / / (2) (2) B / (2) (2) B / / NOTES: 1. s operating in ambient temperatures of 95 F (35 C) and above must use the Maximum size. 2. All Electrical Data notes are on page (2) indicates that two conduits are required. 4. Conduit hubs are not supplied. 10 Supplement #1

11 075BM/BS 130BM/BS, Compressor and Motor Amps, Single and Multi- Point (Up to 105 F) Table 8 Rated Load Amps Compressors Locked Rotor Amps Compressors Across-The-Line No. 1 No. 3 No. 5 No. 2 No. 4 No. 6 F.L. Amps Motors (Each) No. Of Motors Motors (Each) No.1 No. 3 No. 5 No.2 No.4 No B B B B B B B All Electrical Data notes are on page 23. Supplement #1 11

12 075BM/BS - 130BM/BS, Field Wiring, Single Point Table 9 Terminal Amps Wiring to Standard Power Block Connector Wire Range (Copper Wire Only) Wiring to Optional Non-d Disconnect Switch Disconnect Connector Wire Range (Copper Wire Only) GA 500kcmil 600 (2) 250 kcmil -500 kcmil GA 500kcmil 400 (2) 3/0-250 kcmil 075B #4 500kcmil 250 #6-350 kcmil #4 500kcmil 250 #6-350 kcmil GA 2/0 250 #6-350 kcmil GA 500kcmil 600 (2) 250 kcmil -500 kcmil GA 500kcmil 600 (2) 250 kcmil -500 kcmil 085B #4 500kcmil kcmil -500 kcmil #4 500kcmil 250 #6-350 kcmil GA 2/0 250 #6-350 kcmil GA 500kcmil 600 (2) 250 kcmil -500 kcmil GA 500kcmil 600 (2) 250 kcmil -500 kcmil 090B #4 500kcmil kcmil -500 kcmil #4 500kcmil 250 #6-350 kcmil #4 500kcmil 250 #6-350 kcmil GA 500kcmil 600 (2) 250 kcmil -500 kcmil GA 500kcmil 600 (2) 250 kcmil -500 kcmil 100B #4 500kcmil kcmil -500 kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil 250 #6-350 kcmil GA 500kcmil 800 (2) 250 kcmil -500 kcmil GA 500kcmil 800 (2) 250 kcmil -500 kcmil 110B #4 500kcmil kcmil -500 kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil 250 #6-350 kcmil GA 500kcmil 800 (2) 250 kcmil -500 kcmil GA 500kcmil 800 (2) 250 kcmil -500 kcmil 120B #4 500kcmil 400 (2) 3/0-250 kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil 250 #6-350 kcmil GA 500kcmil 800 (2) 250 kcmil -500 kcmil GA 500kcmil 800 (2) 250 kcmil -500 kcmil 130B GA 500kcmil 600 (2) 250 kcmil -500 kcmil #4 500kcmil kcmil -500 kcmil #4 500kcmil kcmil -500 kcmil All Electrical Data notes are on page Supplement #1

13 026BM/BS 070BM/BS, Multi-Point 026BM/BS 070BM/BS, Electrical Data, Multi-Point (Up to 105 F) Table 10 Minimum Circuit Ampacity (MCA) Electrical Circuit #1 Electrical Circuit #2 Power Supply Field Wire Qty Wire Gauge Recomm d Max. Minimum Circuit Ampacity (MCA) Power Supply Field Wire Qty Wire Gauge Recomm d Max # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # / / / / B # # # # # # / / / / B # # # # # # NOTES: 1. All Electrical Data notes are on page Conduit hubs are not supplied. Supplement #1 13

14 026BM/BS - 070BM/BS, Field Wiring, Multi-Point Table 11 Terminal Amps Wiring to Standard Power Block Connector Wire Range (Copper Wire Only) Wiring to Optional Non-d Disconnect Switch Disconnect Connector Wire Range (Copper Wire Only) Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir # GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/0 026B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/0 030B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/0 035B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/0 040B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/0 045B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/0 050B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 # kcmil GA 2/0 14 GA 2/ #14-1/0 #14-1/0 055B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ # kcmil # kcmil GA 2/0 14 GA 2/ #14-1/0 #14-1/0 060B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 #4 500 kcmil #4-300kcmil #4-300kcmil GA 2/0 #4 500 kcmil #4-300kcmil #4-300kcmil 065B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil 070B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/0 All Electrical Data notes are on page Supplement #1

15 065BM/BS - 130BM/BS, Multi-Point 065BM/BS - 130BM/BS, Field Wiring Data Table 12 Terminal Amps Wiring to Standard Power Block Connector Wire Range (Copper Wire Only) Wiring to Optional Non-d Disconnect Switch Disconnect Connector Wire Range (Copper Wire Only) Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir # #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil 075B GA 2/0 14 GA 2/ #14-1/0 #14-1/ GA 2/0 14 GA 2/ #14-1/0 #14-1/ #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil 085B GA 2/0 14 GA 2/ #14-1/0 #4-300kcmil GA 2/0 14 GA 2/ #14-1/0 #14-1/ #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil 090B GA 2/0 14 GA 2/ #4-300kcmil #4-300kcmil GA 2/0 14 GA 2/ #14-1/0 #14-1/ #4 500 kcmil #4 500 kcmil #4-300kcmil kcmil #4 500 kcmil #4 500 kcmil #4-300kcmil kcmil 100B GA 2/0 14 GA 2/ #14-1/0 #4-300kcmil GA 2/0 14 GA 2/ #14-1/0 #4-300kcmil #4 500 kcmil #4 500 kcmil kcmil kcmil #4 500 kcmil #4 500 kcmil kcmil kcmil 110B #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil GA 2/0 14 GA 2/ #4-300kcmil #4-300kcmil #4 500 kcmil #4 500 kcmil kcmil kcmil #4 500 kcmil #4 500 kcmil kcmil kcmil 120B #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil GA 2/0 #4 500 kcmil #4-300kcmil #4-300kcmil #4 500 kcmil #4 500 kcmil kcmil kcmil #4 500 kcmil #4 500 kcmil kcmil kcmil 130B #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil #4 500 kcmil #4 500 kcmil #4-300kcmil #4-300kcmil All Electrical Data notes are on page 23. Supplement #1 15

16 065BM/BS - 130BM/BS, Electrical Data, Multi-Point (Up to 105 F) Table 13 Minimum Circuit Ampacity (MCA) Electrical Circuit #1 Electrical Circuit #2 Power Supply Field Wire Qty Wire Gauge 75C Recomm d Max. Minimum Circuit Ampacity (MCA) Power Supply Field Wire Qty Wire Gauge 75C Recomm d Max / / / / B # # # # # # / / / / B # # # # # # / / / / B # # # # # # / / B # / # # # # B / / # # # # B / / # / # # B / / / / # # NOTES: 1. All Electrical Data notes are on page Conduit hubs are not supplied. 16 Supplement #1

17 High Ambient 026BB/BH 070BB/BH, Single Point 026BB/BH 070BB/BH, Electrical Data, Single Point Table 14 Minimum Circuit Ampacity (MCA) Power Supply Field Wire Wire Quantity Gauge 75C Recomm d. Or HACR Max. Or HACR / / B # # # / / B # # # / / B # # # / / B # # # / / B # # # / / B / # # / B / # # B / # # B / / # B / / # NOTES: 1. s operating in ambient temperatures above 95 F (35 C) must use the Maximum size. 2. All Electrical Data notes are on page Conduit hubs are not provided. Supplement #1 17

18 026BB/BH 070BB/BH, Compressor and Motor Amps, Single and Multi- Point (106 F to 125 F) Table 15 Rated Load Amps Compressors No. 1 No. 3 No. 5 No. 2 No. 4 No. 6 F.L.Amps Motors (Each) No. of Motors R.L.Amps Motors (Each) Locked Rotor Amps Compressors Across-The-Line No.1 No. 3 No. 5 No.2 No.4 No B B B B B B B B B B All Electrical Data notes are on page Supplement #1

19 026BB/BH - 070BB/BH, Electrical Data, Multi-Point (106 F to 125 F) Table 16 Minimum Circuit Ampacity (MCA) Electrical Circuit #1 Electrical Circuit #2 Power Supply Field Wire Qty Wire Gauge 75C Recomm d Max. Minimum Circuit Ampacity (MCA) Power Supply Field Wire Qty Wire Gauge 75C Recomm d Max # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # # # # B # # # # # # # / # # B # # # # # # / / # # B # # # # # # / / / / B # # # # # # / / / / B # # # # # # Notes: 1. All Electrical Data notes are on page Conduit hubs are not supplied. Supplement #1 19

20 065BB/BH 130BB/BH 075BB/BH 130BB/BH, Electrical Data, Single Point (Above 105 F) Table 17 Minimum Circuit Ampacity (MCA) Power Supply Quantity Field Wire Wire Gauge 75C Recomm d. Or HACR Max. Or HACR / B / / / B / / B / / B / / (2) (2) B / (2) (2) B (2) 4/ / (2) (2) B NOTES: 1. s operating in ambient temperatures of 95 F (35 C) and above must use the Maximum size. 2. All Electrical Data notes are on page (2) in column with wire qty. indicates that two conduits are required. 4. Conduit hubs are not supplied. 20 Supplement #1

21 075BB/BH 130BB/BH, Compressor and Motor Amps, Single and Multi- Point (106 F to 125 F) Table 18 Rated Load Amps Compressors No. 1 No. 3 No. 5 No. 2 No. 4 No. 6 F.L.Amps Motors (Each) No. of Motors R.L.Amps Motors (Each) Locked Rotor Amps Compressors Across-The-Line No.1 No. 3 No. 5 No.2 No.4 No B B B B B B B All Electrical Data notes are on page 23. Supplement #1 21

22 075BB/BH 130BB/BH, Electrical Data, Multi-Point (106 F) Table 19 Minimum Circuit Ampacity (MCA) Electrical Circuit #1 Electrical Circuit #2 Power Supply Field Wire Qty Wire Gauge 75C Recomm d Max. Minimum Circuit Ampacity (MCA) Power Supply Field Wire Qty Wire Gauge 75C Recomm d Max / / / / B # # # # # # / / / / B # / # # # # / / / / B / / # # # # / / B # / # / # # B / / / / # # B / / / / # # B / / / / # # NOTES: 1. All Electrical Data notes are on page Conduit hubs are not supplied. 22 Supplement #1

23 Electrical Notes Notes for Electrical Data Single- and Multi-Point Power: 1. wire size ampacity (MCA) is equal to 125% of the largest compressor-motor RLA plus 100% of RLA of all other loads in the circuit including the control transformer. 2. The control transformer is furnished and no separate 115V power is required. For both single- and multi-point power connections, the control transformer is in circuit #1 with control power wired from there to circuit #2. In multi-point power, disconnecting power to circuit will disconnect all control power to the unit. 3. If a separate 115V power supply is used for the control circuit, then the wire sizing amps is 10 amps for all unit sizes. 4. Recommended power lead wire sizes for 3 conductors per conduit are based on 100% conductor ampacity in accordance with NEC. Voltage drop has not been included. Therefore, power leads should be kept short. All terminal block connections must be made with copper (type THW) wire. 5. Recommended s are selected at approximately 150% to 175% of the largest compressor RLA, plus 100% of all other loads in the circuit. 6. Maximum breaker size is selected at approximately 225% of the largest compressor RLA, plus 100% of all other loads in the circuit. 7. The recommended power lead wire sizes are based on an ambient temperature of 86 F (30 C). Ampacity correction factors must be applied for other ambient temperatures. Refer to the National Electrical Code Handbook. 8. The units must be electrically grounded according to national and local electrical codes. Voltage Limitations: Within ± 10 percent of nameplate rating Notes for Compressor and Condenser Amp Draw : 1. Compressor RLA values are for wiring sizing purposes only but do not reflect normal operating current draw at rated capacity. Notes for Field Wiring Data 1. Requires a single disconnect to supply electrical power to the unit. This power supply must either be fused or use an HACR type circuit breaker. 2. All field wiring to unit power block or optional non-fused disconnect switch must be copper. 3. All field wire size values given in table apply to 75 C rated wire per NEC. Circuit s ( 026 to 130 only) Factory installed circuit breakers are standard on units with single point power supply only. This option provides unit installed compressor short circuit protection and makes servicing easier. Connection Type Power Block Disconnect Swt. Circuit s High Short Circuit Current Single Point (Standard) Std Opt. Std Opt Multi-Point (Optional) Std Opt. Not Avail. Opt. Supplement #1 23

24 Field Wiring Diagrams 010A - 034A, Typical Field Wiring Figure 1 3 PHASE POWER SUPPLY DISCONNECT UNIT MAIN TERMINAL BLOCK GND LUG TO COMPRESSOR(S) AND FAN MOTORS NOTE: ALL FIELD WIRING TO BE INSTALLED AS NEC CLASS 1 WIRING SYSTEM WITH CONDUCTOR RATED 600 VOLTS FUSED CONTROL CIRCUIT TRANSFORMER 120 VAC DISCONNECT TB1-20 SEPARATE EVAP. HEATER POWER FIELD WIRED N 120VAC CONTROL POWER 120VAC N 10A FUSE DISCONNECT 10A FUSE TB CONTROL CIRCUIT FUSE MJ MJ IF SEPARATE EVAPORATOR HEATER POWER OPTION IS USED - REMOVE MECHANICAL JUMPER BETWEEN TB1-5 AND TB1-6 & TB1-15 AND TB1-16. LIQUID LINE SOLENOID 120 VAC 1.0 AMP MAX SV1 SV5 HOT GAS BYPASS SOLENOID 120 VAC 1.0 AMP MAX VAC 120 VAC REMOTE EVAP ONLY FACTORY SUPPLIED ALARM FIELD WIRED ALARM BELL OPTION ALARM BELL RELAY CHW PUMP RELAY 120 VAC 1.0 AMP MAX N 120 VAC 120 VAC 17 GND TIME CLOCK AUTO OFF TB2 REMOTE STOP SWITCH ON MANUAL IF REMOTE STOP CONTROL IS USED, REMOVE LEAD 843 FROM TERM. 25 TO 35. ALARM BELL RELAY CHW FLOW SWITCH ---MANDATORY - NOR. OPEN PUMP AUX. CONTACTS (OPTIONAL) COM NO BELL 1 2 ALARM BELL OPTION 24VAC MA FOR CHW RESET AUTO OFF GND ICE MODE SWITCH ON MANUAL FIELD WIRING FACTORY WIRING LABEL DWG REV.0B 24 Supplement #1

25 026B 130B, Typical Field Wiring Figure 2 3 PHASE DISCONNECT UNIT MAIN TERMINAL BLOCK GND LUG POWER TO COMPRESSOR(S) AND FAN MOTORS NOTE: ALL FIELD WIRING TO BE INSTALLED AS NEC CLASS 1 WIRING SYSTEM WITH CONDUCTOR RATED 600 VOLTS FUSED CONTROL CIRCUIT TRANSFORMER 120 VAC ALARM BELL OPTION FIELD SUPPLIED OPTION N 120VAC CONTROL POWER DISCONNECT FACTORY SUPPLIED ALARM FIELD WIRED ALARM BELL RELAY 10A FUSE CHW PUMP RELAY 120 VAC 1.0 AMP MAX TB CONTROLLER 34 TB1-20 CONTROL CIRCUIT FUSE N 120 VAC 120 VAC 32 REMOTE STOP SWITCH TIME CLOCK OFF AUTO ON MANUAL TB GND 585 IF REMOTE STOP CONTROL IS USED, REMOVE LEAD 585 FROM TERM. 52 TO 72. ALARM BELL RELAY ICE MODE SWITCH OFF AUTO ON BELL COM NO 1 2 ALARM BELL OPTION CHW FLOW SWITCH ---MANDATORY - MANUAL 74 NOR. OPEN PUMP AUX. CONTACTS (OPTIONAL) 4-20MA FOR + CHW RESET MA FOR + DEMAND LIMIT GND GND REMOTE EVAPORATOR ONLY -BM VAC DWG R01 LIQUID LINE #1 SOLENOID 24 VAC 1.5 AMP MAX LIQUID LINE #2 SOLENOID 24 VAC 1.5 AMP MAX N N 24 VAC Supplement #1 25

26 26 Supplement #1

28 This document contains the most current product information as of this printing. For the most up-todate product information, please go to Post Office Box 2510, Staunton, Virginia USA (800) Supplement #1, -A, -B (10/03)

ELEMENTARY DIAGRAM CONNECTION DIAGRAM CONTROL PANEL AND CONNECTION DIAGRAM SYSTEM WIRING FOR MODELS:

RecipPak PACKAGED LIQUID CHILLERS WATER COOLED AND CONDENSERLESS WIRING DIAGRAM Supersedes: 150.24-W27 (397) Form 150.24-W27 (697) ELEMENTARY DIAGRAM CONNECTION DIAGRAM CONTROL PANEL AND CONNECTION DIAGRAM