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© 2004, Heatcraft Refrigeration Products LLC

General Safety Information

1.  Installation and maintenance to be performed only by  

 

qualified personnel who are familiar with this type of   

 

equipment.

2.  Some units are pressurized with dry air or inert gas. All units  

 

must be evacuated before charging the system with refrigerant.

3.  Make sure that all field wiring conforms to the requirements  

 

of the equipment and all applicable national and local codes.

4.  Avoid contact with sharp edges and coil surfaces. They are  

 

a potential injury hazard.

5.  Make sure all power sources are disconnected before any  

 

service work is done on units.

WARNING:

 

Refrigerant can be harmful if it is inhaled. Refrigerant must be used and recovered 

responsibly. 

Failure to follow this warning may result in personal injury or death.

Inspection 

 

Responsibility should be assigned to a dependable individual at 

the job site to receive material. Each shipment should be carefully 

checked against the bill of lading. The shipping receipt should 

not be signed until all items listed on the bill of lading have been 

accounted. Check carefully for concealed damage. Any shortage 

or damages should be reported to the delivering carrier. Damaged 

material becomes the delivering carrierʼs responsibility, and should 

not be returned to the manufacturer unless prior approval is 

given to do so. When uncrating, care should be taken to prevent 

damage. Heavy equipment should be left on its shipping base 

until it has been moved to the final location. Check the serial tag 

information with invoice. Report any discrepancies to your Heatcraft 

Refrigeration Products Sales Representative. 

Warranty Statement 

S

eller warrants to its direct purchasers that products, including 

Service Parts, manufactured by SELLER shall be of a merchantable 

quality, free of defects in material or workmanship, under normal 

use and service for a period of one 

(1) year from date of original 

installation, or eighteen (18) months from date of shipmen

t by 

SELLER, whichever first occurs. Any product covered by this order 

found to Sellerʼs satisfaction to be defective upon examination at 

Sellerʼs factory will at SELLERʼs option, be repaired or replaced 

and returned to Buyer via lowest common carrier, or SELLER 

may at its option grant Buyer a credit for the purchase price of the 

defective article. Upon return of a defective product to SELLERʼs 

plant, freight prepaid, by Buyer, correction of such defect by repair 

or replacement, and return freight via lowest common carrier, shall 

constitute full performance by SELLER of its obligations hereunder.

SELLER shall have no liability for expenses incurred for repairs 

made by Buyer except by prior, written authorization. Every claim 

on account of breach of warranty shall be made to SELLER in 

writing within the warranty period specified above – otherwise 

such claim shall be deemed waived. Seller shall have no warranty 

obligation whatsoever if its products have been subjected to 

alteration, misuse, negligence, free chemicals in system, corrosive 

atmosphere, accident, or if operation is contrary to SELLERʼs or 

manufacturerʼs recommendations, or if the serial number has been 

altered, defaced, or removed.

MOTOR COMPRESSORS: 

Motor compressors furnished by SELLER are subject to the 

standard warranty terms set forth above, except that motor 

compressor replacements or exchanges shall be made through 

the nearest authorized wholesaler of the motor compressor 

manufacturer (not at SELLERʼs factory) and no freight shall be 

allowed for transportation of the motor compressor to and from the 

wholesaler. The replacement motor compressor shall be identical 

to the model of the motor compressor being replaced. Additional 

charges which may be incurred throughout the substitution of 

other than identical replacements are not covered by this warranty. 

An optional, nonassignable, four (4) year extended compressor 

warranty may be purchased within the boundaries of the United 

Sates of America, its territories and possessions, and Canada. With 

this extended compressor warranty, replacements are administered 

by an authorized compressor distributor only. Replacements within 

the first year of the warranty area available through the distributor; 

the second through fifth years, the purchaser must submit a proof-

of-purchase of a compressor and supply it to Heatcraft Refrigeration 

Products Warranty Claims for reimbursement.

Seller makes no express warranties except as noted above. 

All implied warranties are limited to the duration of the Express 

Warranty. Liability for incidental and consequential damages is 

excluded. 

The forgoing is in lieu of all other warranties, express or implied, 

notwithstanding the provisions of the uniform commercial code, the 

Magnuson-Moss Warranty-Federal Trade Commission Improvement 

Act, or any other statutory or common law, federal or state.

SELLER makes no warranty, express or implied, of fitness for 

any particular purpose, or of any nature whatsoever, with respect 

to products manufactures or sold by seller hereunder, except as 

specifically set forth above and on the face hereof. It is expressly 

understood and agreed that SELLER shall not be liable to buyer, 

or any customer of buyer, for direct or indirect, special, incidental, 

consequential or penal damages, or for any expenses incurred 

by reason of the use or misuse by buyer or third parties of said 

products. To the extent said products may be considered "consumer 

products," As defined in Sec. 101 of the Magnuson-Moss Warranty 

- Federal Trade Commission Improvement Act, SELLER makes no 

warranty of any kind, express or implied, to "consumers," except as 

specifically set forth above and on the face hereof.

The following conditions should be adhered to when installing this 

unit to maintain the manufacturers warranty:

(a)  System piping must be in accordance with good 

 

refrigeration practices. 

(b) 

Inert gas must be charged into the piping during  

 

brazing.

 

(c) 

The power supply to the unit must meet the  

 

 

following conditions:

 

 

A.   Three phase voltages must be +/- 

 

 

 

10% of nameplate ratings. Single 

 

 

 

phase must be 10% or 

 

 

 

-5% of nameplate ratings.

 

 

B.   Phase imbalance cannot exceed 2%.

(d)  All control and safety switch circuits must be    

 

properly connected according to the wiring diagram. 

(e)  The factory installed wiring must not be changed  

 

without written factory approval.

(f) 

All equipment is installed in accordance with    

 

Heatcraft specified minimum clearances.

Summary of Contents for H-IM-FL1A

Page 1: ...riers Sight Glasses 5 Refrigerant Oils 6 Phase Loss Monitor 7 Recommended Refrigerant Piping Practices 7 Refrigeration Pipe Supports 7 Suction Lines 8 Suction Line Risers 8 Liquid Lines 8 Evacuation and Leak Detection 11 Refrigerant Charging Instructions 12 Field Wiring 12 Check Out and Start Up 12 Operational Check Out 13 System Balancing Compressor Superheat 13 System Troubleshooting Guide 14 Pr...

Page 2: ...turerʼs recommendations or if the serial number has been altered defaced or removed MOTOR COMPRESSORS Motor compressors furnished by SELLER are subject to the standard warranty terms set forth above except that motor compressor replacements or exchanges shall be made through the nearest authorized wholesaler of the motor compressor manufacturer not at SELLERʼs factory and no freight shall be allow...

Page 3: ...d Location Requirements for Air Cooled Condensing Units and Remote Condensers Units in Pits The top of the unit should be level with the top of the pit and side distance increased to 2W If the top of the unit is not level with the top of pit discharge cones or stacks must be used to raise discharge air to the top of the pit This is a minimum requirement Decorative Fences Fences must have 50 free a...

Page 4: ...ess Provide adequate space at the compressor end of the unit for servicing Provide adequate space on the connection side to permit service of components Spring Mounted Compressor Compressors are secured rigidly to make sure there is no transit damage Before operating the unit it is necessary to follow these steps a Remove the upper nuts and washers b Discard the shipping spacers c Install the neop...

Page 5: ... drier The sight glass is designed to give a visual indication of moisture content in the system Generally it requires no field service However in cases of extreme acid formation in a system after a compressor burnout the acid may damage the sensing element or etch the glass This would require that the sight glass be replaced along with the liquid line drier after any compressor motor burnout CAUTI...

Page 6: ...introduction of the Polyol ester lubricants Table 3 below summarizes which oils lubricants are approved for use in Copeland compressors Polyol Ester Lubricants Hygroscopicity Ester lubricants POE have the characteristic of quickly absorbing moisture from the ambient surroundings This is shown graphically in Figure 3 where it can be seen that such lubricants absorb moisture faster and in greater qu...

Page 7: ... the base of each suction riser of four 4 feet or more to enhance oil return to the compressor e For desired method of superheat measurement a pressure tap should be installed in each evaporator suction line in the proximity of the expansion valve bulb f When brazing refrigerant lines an inert gas should be passed through the line at low pressure to prevent scaling and oxidation inside the tubing ...

Page 8: ...superheat at the compressor Figure 6 Suction P Traps Slope 1 4 per 10 ft toward compressor Suction Lines NOTE If the suction line must rise to a point higher than the suction connection on the evaporator a suction line trap at the outlet of the evaporator must be provided Horizontal suction lines should slope away from the evaporator toward the compressor at the rate of 1 4 inch per 10 feet for go...

Page 9: ...Tee Straight Through 1 2 2 3 4 4 5 7 8 10 12 14 16 Table 4 Pressure Loss of Liquid Refrigerants in Liquid Line Risers Expressed in Pressure Drop PSIG and Subcooling Loss F Liquid Line Rise in Feet 10ʼ 15ʼ 20ʼ 25ʼ 30ʼ 40ʼ 50ʼ 75ʼ 100ʼ Refrigerant PSIG F PSIG F PSIG F PSIG F PSIG F PSIG F PSIG F PSIG F PSIG F R22 4 8 1 6 7 3 2 3 9 7 3 1 12 1 3 8 14 5 4 7 19 4 6 2 24 2 8 0 36 3 12 1 48 4 16 5 R134a 4...

Page 10: ... 1 3 27 26 39 63 86 1 24 134a 64 2 2 57 14 26 40 61 1 91 1 3 8 22 63 5 3 50 27 42 64 93 1 33 R507 404A 55 0 4 98 40 58 95 1 32 1 87 134a 90 9 3 65 20 37 57 87 1 30 1 5 8 22 90 0 4 96 37 59 90 1 33 1 88 R507 404A 78 0 7 07 56 82 1 35 1 86 2 64 134a 158 6 34 34 64 98 1 51 2 24 2 1 8 22 156 8 61 65 1 03 1 57 2 30 3 26 R507 404A 134 12 25 98 1 43 2 35 3 23 4 58 134a 244 9 78 52 99 1 51 2 32 3 47 2 5 8...

Page 11: ...CFCʼs There is a view that even small quantities of chlorine may act as a catalyst encouraging copper plating and or corrosion and should therefore be avoided WARNING HFC 134a has been shown to be combus tible at pressure as low as 5 5 psig at 350 F when mixed with air at concen trations more than 60 air by volume At lower temperature higher pressures are required to support combustion Therefore a...

Page 12: ...ng until system has sufficient refrigerant for proper operation Do not overcharge Remember that bubbles in a sight glass may be caused by a restriction as well as a shortage of refrigerant i Do not leave unit unattended until the system has reached normal operating conditions and the oil charge has been properly adjusted to maintain the oil level at the center of the sight glass CAUTION Extreme car...

Page 13: ...ve at the evaporator should be adjusted Operational Check Out After the system has been charged and has operated for at least two hours at normal operating conditions without any indication of malfunction it should be allowed to operate overnight on automatic controls Then a thorough recheck of the entire system operation should be made as follows a Check compressor discharge and suction pressures...

Page 14: ... system 3 Check for leaks Repair and add charge 4 Low suction pressure 4 See corrective steps for low suction pressure 5 Variable head pressure valve 5 Check valve setting High suction pressure 1 Excessive load 1 Reduce load or add additional equipment 2 Expansion valve overfeeding 2 Check remote bulb Regulate superheat Low suction pressure 1 Lack of refrigerant 1 Check for leaks Repair and add ch...

Page 15: ... and components Verify that all electrical and ground connections are secure tighten as required Check condition of compressor and heater contactors Look for discoloration and pitting Replace as required Check operation and calibration of all timers relays pressure controls and safety controls Clean electrical cabinet Look for signs of moisture dirt debris insects and wildlife Take corrective acti...

Page 16: ...ATE MODULE R1 R4 RELAYS TD7 8 START TIMER FIELD WIRING FACTORY WIRING CB1 CB7 CIRCUIT BREAKERS F1 FUSE CLASS CC CCH CRANKCASE HEATERS C1 C4 COMPRESSOR CONTACTORS C1A1 C4A1 C1 C4 AUXILIARY CONTACTS C5 C12 CONDENSER FAN CONTACTORS FCT FAN CYCLE TEMP CONTROL LSV LIQUID LINE SOLENOID VALVE HPS HIGH PRESSURE SWITCH LPS LOW PRESSURE SWITCH LEGEND w 30 MIN TIME DELAY 25 A M1 M3 C5 25 A C6 25 A M5 M7 C7 2...

Page 17: ...TE MODULE R1 R4 RELAYS TD7 8 START TIMER FIELD WIRING FACTORY WIRING CB1 CB7 CIRCUIT BREAKERS F1 FUSE CLASS CC CCH CRANKCASE HEATERS C1 C4 COMPRESSOR CONTACTORS C1A1 C4A1 C1 C4 AUXILIARY CONTACTS C5 C12 CONDENSER FAN CONTACTORS FCT FAN CYCLE TEMP CONTROL LSV LIQUID LINE SOLENOID VALVE HPS HIGH PRESSURE SWITCH LPS LOW PRESSURE SWITCH LEGEND w 30 MIN TIME DELAY 25 A M1 M3 C5 25 A C6 25 A M5 M7 C7 25...

Page 18: ...18 Control Circuit Wiring Diagram for BACU51 and BACU59 ...

Page 19: ...19 Submittal ...

Page 20: ...20 Submittal ...

Page 21: ...t Serial ________________________________________ Compressor Model ____________________ Compressor Model _________________ Compressor Serial ____________________ Compressor Serial __________________ Electrical _________________ Volts __________________ Phase _______ Voltage at Compressor L1__________ L2 ___________ L3 ___________ Amperage at Compressor L1__________ L2 ___________ L3 ___________ Se...

Page 22: ...22 Notes ...

Page 23: ...23 Notes ...

Page 24: ...PLACE BOULEVARD STONE MOUNTAIN GA 30087 USA 770 465 5600 FAX 770 465 5990 WWW HEATCRAFTRPD COM Since product improvement is a continuing effort we reserve the right to make changes in specifications without notice Visit us online at www heatcraftrpd com ...

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