Russell ETHN-2 Installation Manual

ColdZone

OWNERS

INSTRUCTION MANUAL

221 South Berry Street	P.O.	Box 1030
Brea, CA 92621-4888	Brea,	CA 92622-1030
Phone: [phone]	* Fax: [phone]

ColdZone

ENVIRO-THERM

+

ENVIRO-COOL

CUSTOM PACKAGED CLOSED-LOOP SYSTEMS

FOR ALL AMBIENT CONDITIONS

OWNER’S MANUAL

INSTALLATION OPERATION MAINTENANCE

A DIVISION OF THE HEAT TRANSFER PRODUCTS GROUP OF ARDCO. INC.

ColdZone	[phone] ̝ FAX [phone]
	221 S. Berry St., Brea, CA 92821-4888
	Outside California ̝ [phone]
	PRINTED IN U.S.A.

© AROCO, INC 1990

		TABLE OF CONTENTS
TYPICAL REFRIGERATION SYSTEM..................................			1
INTRODUCTION ................................................			2
General Description .....................................			2
Condensing Unit .........................................			2
Refrigerant		.............................................	2
Control Panels ..........................................			2
Electrical Defrost ......................................			3
Electrical Characteristics ...............................			3
Standard Components .....................................			3
Factory Installed Accessories ...........................			3
U. L. Approval ..........................................			3
W.I.	Unit	Coolers ..................................	4
INSTALLATION .................................................			8
Receipt and Inspection of Equipment ...............			8
Lifting Instructions .................................			8
Location and Ventilation ..............................			8
Installation Area .....................................			8
Roof	Rail	Requirements ..............................	8
Pitch Pocket		..........................................	8
Electrical		............................................	11
Refrigeration .........................................			11
START-UP PROCEDURE ........................................			13
Condensing Units ........................................			13
Unit Cooler ..............................................			13
OPERATIONAL CHECK-OUT ........................................			15
MAINTENANCE ..................................................			18
Air-Cooled Condenser ....................................			18
Electrical and Piping Connections .......................			18
Crankcase Lubrication ...................................			18
Unit Cooler		.............................................	19
Heater Replacement in Low Temp Unit Cooler ..............			19
SERVICE DIAGNOSIS ...........................................			21
Condensing Units .........................................			21
STANDARD WARRANTY ...........................................			26
DIRECTORY OF AUTHORIZED WHOLESALERS
REPLACEMENT POLICY

INTRODUCTION

GENERAL DESCRIPTION (Figure 1)

The CZ + FILCO "Enviro-Therm" Outdoor Refrigeration System is designed primarily for restaurant and hotel requirements and installations where all refrigerated fixtures are to be remoted, i.e., walk-in coolers/freezers, backbars, bottle and draft beer coolers, under counter refrigerators/freezers and ice machines. This will allow the high heat producing condensing units to be placed outside the building, thus reducing indoor air conditioning requirements at a very nominal cost. Totally ore-piped, pre-wired, and weatherized for fast, low cost rigging and installation on rooftop, it is only necessary to provide main power lines to control panel and wiring for control and defrost heaters between panel and refrigeration fixtures. The system accommodates up to sixteen compressor units and three ice machine condenser in one compact cabinet thus handling all your refrigeration requirements. In addition, the unit has been carefully designed for easy installation, providing ready access for service and maintenance of all major components.

CONDENSING UNIT

A refrigeration condensing unit is a highly sophisticated apparatus. It is installed with the anticipation that it will provide many years of trouble-free operation with minimal maintenance. Usually the length of service life realized from a particular condensing unit is directly proportional to the care with which the original installation was performed.

Cleanliness is absolutely mandatory when installing a condensing unit. Utmost care has been taken at the factory to insure that the unit is free of all contamination. The factory-applied seals must not be removed until the unit is ready for installation. All tubing, valves and fittings must be carefully inspected to insure cleanliness.

The correct electrical supply must be provided to the condensing unit control panel. The voltage at the motor-compressor terminals should be checked during start-up and unit operation under full load to insure a tolerance of plus or minus 10 percent of the nameplate rating.

The lubrication recommendations for the motor-compressor and fan motors (where applicable) must be carefully adhered to.

REFRIGERANT

R-22 is used for the Walk-In Cooler. R-502 is used for Walk-In Freezer.

CONTROL PANEL

Each Enviro-Therm system is provided with a prewired, weatherproof control panel for single point connection with main fused disconnect.

2

Control panel is designed Co assure efficient unit operation and provide a pre-selected sequence of operation during the refrigeration and defrost cycles. Each control panel is equipped with an interlocked main fused disconnect, motor compressor breakers, contactors, fan motor capacitor, defrost time clock for freezer, and metal photo wiring diagram plate for service. An inside pocket is provided for engineering sheet (R-1) and installation manual.

The control panel only requires 3-wires for power supply and 4-wires for defrost heaters and unit cooler fan motors in freezer. All system circuits are labeled for easy identification.

ELECTRICAL DEFROST

An electric defrost heater in the freezer is field-connected to the time clock in the control panel. Defrost is initiated by a timeclock and stopped by a termination solenoid in the timeclock connected to defrost limit thermostat in the freezer coil. The timeclock is set to fail safe termination period at 45 minutes. The freezer requires four defrosts per day starting at 12:00 a.m., 6:00 a.m., 12:00 p.m., and 6:00 p.m..

ELECTRICAL CHARACTERISTICS

Each Enviro-Therm is equipped with 208-230 volts, 3 phase, 60 hertz power supply with a total connected load of 20 amps.

STANDARD COMPONENTS

Each Enviro-Therm consists of six to sixteen semi-hermetic compressors, multi-circuited condenser with heavy duty fan motors, oversized receivers, factory installed accessories, unit coolers with T-Stat, solenoid valve, TX valve and suction line P-Trap for freezer and cooler.

FACTORY INSTALLED ACCESSORIES

Drier, sight glass, suction and discharge vibration eliminators, head pressure, control, crankcase heater, dual pressure control, prewired control panel.

U.L. APPROVAL

The "Enviro-Therm" system is approved by Underwriters Laboratories and displays the U.L. Label on the Control Panel, U.L. File No. SA6629(s) under condensing and compressor units (SGYU).

3

W.I. UNIT COOLERS

1.Freezer

A low temperature electric defrost Lo-silhouette Unit Cooler for the freezer is provided with each Enviro-Therm unit. The Unit Cooler draws air in through the coil and discharges it through the fans. For best results, the Unit Cooler should be located 18" from the back wall and blow towards the door. T-Stat, solenoid valve and TX valve are installed in the Unit Cooler at the factory. A suction line P-Trap is also installed in the Unit Cooler for better oil return.

2.Cooler

A medium temperature Lo-silhouette Unit Cooler for the cooler is provided with each Enviro-Therm unit. Air defrost is used for defrosting Unit Cooler. The Unit Cooler is provided with T-Stat, solenoid valve, TX valve and suction line P-Trap and is prepiped and prewired for final connections.

The C/Z+FILCO "Enviro-Therm" package refrigeration units are tested and assembled under strict quality assurance procedures. Each unit is tested and charged with nitrogen prior to shipment.

4