Mueller E-Star OESE-A51-HFC User Manual

Mueller E-Star OESE 3.5 and 5 HP HFC Condensing Unit
Installation and Operation Manual, Part No. 8828747 Effective April 13, 2020
14.1 E-STAR OESE ELECTRICAL DATA
14.2 E-STAR OESE REFRIGERANT DATA
14.3 E-STAR OESE COMPRESSOR OIL CHARGE
30
Section 14.0 – Technical Data
Model Part No. Description
Receiver
Part No.
R-507
Expansion Valve
Part No.
Accumulator
Heat Exchanger
Part No.
Drier
Part No.
OESE-A351-HFC 8825311 3.5 HP, Single-Phase Unit 8820746 8825505 30574 8825333
OESE-A353-HFC 8825312 3.5 HP, Three-Phase Unit 8820746 8825505 30574 8825333
OESE-A51-HFC 8825317 3.5 HP, Three-Phase Unit 8820746 8825505 30574 8825333
OESE-A53-HFC 8825318 5 HP, Single-Phase Unit 8820746 8825503 30574 8825333
OESE-A534-HFC 8825319 5 HP, Three-Phase Unit 8820746 8825503 30574 8825333
Model Part No. Description Voltage Hz Phase
Full
Load
Amps
Locked
Rotor
Amps
Min.
Circuit
Ampacity
Max.
Fuse
Size
OESE-A351-HFC
8825311 3.5 HP, Single-Phase Unit 200–240 50/60 1 – – 31.4 50
8825340 Compressor, Scroll, ZB26KCE-PFV 200–220/208–230 50/60 1 23.6 127 – –
8823340 Fan Motor,
1
⁄3 HP 200–220/208–230 50/60 1 1.9 – – –
OESE-A353-HFC
8825312 3.5 HP, Three-Phase Unit 200–240 50/60 1 – – 18.4 30
8825341 Compressor, Scroll, ZB26KCE-TF5 200–220/208–230 50/60 1 13.2 88 – –
8823340 Fan Motor,
1
⁄3 HP 200–220/208–230 50/60 1 1.9 – – –
OESE-A51-HFC 8825317 5 HP, Single-Phase Unit 200–240 50/60 1 – – 40 70
8825337 Compressor, Scroll, ZB38KCE-PFV 200–220/208–230 50/60 1 31.1 175 – –
8823340 Fan Motor,
1
⁄3 HP 200–220/208–230 50/60 1 1.9 – – –
OESE-A53-HFC 8825318 5 HP, Three-Phase Unit 200–240 50/60 3 – – 30 50
8825338 Compressor, Scroll, ZB38KCE-TF5 200–220/208–230 50/60 3 22.1 115 – –
8823340 Fan Motor,
1
⁄3 HP 200–220/208–230 50/60 1 1.9 – – –
OESE-A534-HFC 8825319 5 HP, Three-Phase Unit 380–420/460 50/60 3 – – 13.2 20
8825336 Compressor, Scroll, ZB38KCE-TFD 380–420/460 50/60 3 9.6 63 – –
8823340 Fan Motor,
1
⁄3 HP 380–460 50/60 1 1.2 – – –
Model Part No. Description Oil Charge Oil Type
OESE-A351-HFC 8825311 3.5 HP, Single-Phase Unit, ZB26KCE 42 oz Copeland Ultra 22cc or Mobil EAL Arctic 22CC
OESE-A353-HFC 8825312 3.5 HP, Three-Phase Unit, ZB26KCE 42 oz Copeland Ultra 22cc or Mobil EAL Arctic 22CC
OESE-A51-HFC 8825317 3.5 HP, Three-Phase Unit, ZB38KCE 64 oz Copeland Ultra 22cc or Mobil EAL Arctic 22CC
OESE-A53-HFC 8825318 5 HP, Single-Phase Unit, ZB38KCE 64 oz Copeland Ultra 22cc or Mobil EAL Arctic 22CC
OESE-A534-HFC 8825319 5 HP, Three-Phase Unit, ZB38KCE 64 oz Copeland Ultra 22cc or Mobil EAL Arctic 22CC

Mueller E-Star OESE-A51-HFC Specifications

General

Brand	Mueller
Model	E-Star OESE-A51-HFC
Category	Heat Pump
Language	English

Summary

Introduction

General Specifications

Details the custom and specialized components of the E-Star OESE condensing units for maximizing energy efficiency.

Installation

Refrigeration Piping and Evacuation

Guidelines for proper brazing, line set insulation, and system evacuation to 500 microns.

Electrical Connections

Guidance on verifying compatibility, securing connections, and following NEC regulations for electrical setup.

Refrigerant Charging

EPA Refrigerant Regulations

Details EPA requirements for technicians performing refrigerant installation or service, including certification.

Initial Refrigerant Charge

Guidance on triple evacuation to 500 microns and the weigh-in method for startup refrigerant charge.

Weigh-In Refrigerant Charging

Step-by-step procedure for accurately weighing in the refrigerant startup charge into the system.

Final Operating Charge

Procedure for fine-tuning the refrigerant charge for optimal system efficiency, including superheat checks.

Operating Features

Refrigerant Cycle

Explanation of the TEV's role in superheat control and the function of the accumulator heat exchanger.

Expansion Valve

TEV Selection and Installation

Guidance on field adjusting the TEV for optimal superheat and critical aspects of its location and sizing.

Checking and Adjusting Superheat

Procedure for measuring and adjusting evaporator superheat using the TEV.

Electrical Schematics

5 HP, 460/60/3 Wiring Schematic (Effective After September 1, 2007)

Wiring diagram for 5 HP units with 460/60/3 phase, for control cabinets with 24-volt control output.

5 HP, 460/60/3 Wiring Schematic (Effective Until August 31, 2007)

Wiring diagram for 5 HP units (pre-Sept 2007) with 460/60/3 phase and 24-volt control output.

3.5 and 5 HP, 200-220/50/1, 208-230/60/1 Wiring Schematic

3.5 and 5 HP, 200-240/50/3, 208-230/60/3 Wiring Schematic

Pressure Switches and Fan Control

Low-Pressure Switch with Automatic Reset

High-Pressure Switch with Automatic Reset

Equipment Markings (Continued)

Warning: Disconnect Power Before Screen Guard Removal

Mandates disconnecting power before removing the screen guard to prevent electrical hazards.

Warning: Place Screen Guard Before Unit Operation

Warning: Fan Will Start Automatically

Warning: Risk of Electric Shock

Crucial warning about disconnecting all remote power supplies before performing any servicing.

Safety

Safety Alert

General safety warning that improper handling or service can create health hazards.

Refrigerant Health Hazards

First Aid

Personal Protective Equipment

Technical Data

E-Star OESE Electrical Data

Compressor Data Charts

ZB26KCE Single-Phase, 208/230 V Compressor Data Chart

Performance data for ZB26KCE single-phase compressors under various operating conditions.

ZB26KCE Three-Phase, 208/230 V Compressor Data Chart

Performance data for ZB26KCE three-phase compressors under various operating conditions.

ZB38KCE Single-Phase, 208/230 V Compressor Data Chart

Performance data for ZB38KCE single-phase compressors under various operating conditions.

ZB38KCE Three-Phase, 208/230 V Compressor Data Chart

Performance data for ZB38KCE three-phase compressors under various operating conditions.

ZB38KCE Three-Phase, 460 V Compressor Data Chart

Performance data for ZB38KCE three-phase compressors at 460V under various operating conditions.

R-507 Pressure Temperature Chart