Heatcraft Refrigeration Products H-IM-FL1A manuale d’uso

H-IM-FL1A December , 2004 Part No. 25006901 Installation and Operation Manual T able of Contents General Safety Information ...................................................... 2 Inspection ................................................................................. 2 W arranty Statement ......................................................[...]

2 © 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 [...]

3 The most important consideration which must be taken into account when deciding upon the location of air-cooled equipment is the provision for a supply of ambient air to the condenser , and removal of heated air from the condensing unit or remote condenser area. Where this essential requirement is not adhered to, it will result in higher head pre[...]

4 Figure 2. Solid Mount for Mobile or Deep Sump Application. Condensing Unit Rigging and Mounting Rigging holes are provided on all units. Caution should be exercised when moving these units. T o prevent damage to the unit housing during rigging, cables or chains used must be held apart by spacer bars. The mounting platform or base should be level [...]

5 Suction Filters, Driers, Sight Glasses There are two types of suction and liquid filter/driers used on Heatcraft Refrigeration Products units. Replaceable core and/or sealed units are used, dependent upon the option package ordered. Suction filters, regardless of type, are always installed upstream of the compressor suction service valve, and a[...]

6 Mineral Oils The BR and Scroll compressors use Sontex 200, a “white oil”. This oil is not suitable for low temperature applications nor is it available through the normal refrigeration wholesalers. For field “top-off” the use of 3GS or equivalent, or Zerol 200TD is permissible, as long as at least 50% of the total oil charge remains Sont[...]

7 Phase Loss Monitor The combination phase sequence and loss monitor relay protects the system against phase loss (single phasing), phase reversal (improper sequence) and low voltage (brownout). When phase sequence is correct and full line voltage is present on all three phases, the relay is energized as the normal condition indicator light glows. [...]

8 Liquid Lines Liquid lines should be sized for a minimum pressure drop to prevent “flashing”. Flashing in the liquid lines would create additional pressure drop and poor expansion valve operation. If a system requires long liquid lines from the receiver to the evaporator or if the liquid has to rise vertically upward any distance, the losses [...]

9 T able 5. Equivalent Feet of Pipe Due to V alve and Fitting Friction Copper T uber, O.D., Type “L” 1/2 5/8 7/8 1 1/8 1 3/8 1 5/8 2 1/8 2 5/8 3 1/8 3 5/8 4 1/8 5 1/8 6 1/8 Globe V alve (Open) 14 16 22 28 36 42 57 69 83 99 1 18 138 168 Angle V alve (Open) 7 9 12 15 18 21 28 34 42 49 57 70 83 90˚ T urn Through T ee 3 4 5 6 8 9 12 14 17 20 22 28[...]

10 T able 6. Weight of Refrigerants in Copper Lines During Operation (Pounds per 100 lineal feet of type “L” tubing). Line Size Suction Line at Suction T emperature O.D. Liquid Hot Gas in Inches Refrigerant Line Line -40˚F -20˚F 0˚F +20˚F +40˚F 134a 4.0 .15 .01 .01 .02 .04 .06 3/8 22 3.9 .22 .02 .03 .04 .06 .08 R507, 404A 3.4 .31 .03 .04 .[...]

1 1 Line Insulation After the final leak test, refrigerant lines exposed to high ambient conditions should be insulated to reduce heat pickup and prevent the formation of flash gas in the liquid lines. Suction lines should be insulated with 3/4" wall Armstrong “Armaflex” or equal. Liquid lines should be insulated with 1/2 inch wall insu[...]

12 Field Wiring W ARNING: All wiring must be done in accordance with applicable codes and local ordinances. The field wiring should enter the areas as provided on the unit. The wiring diagram for each unit is located on the inside of the electrical panel door . All field wiring should be done in a profes - sional manner and in accordance with all[...]

13 NOTE: All adjustable controls and valves must be field adjusted to meet desired operation. There are no factory preset controls or valve adjustments. System Balancing - Compressor Superheat IMPORT ANT : In order to obtain the maximum capacity from a system, and to ensure trouble- free operation, it is necessary to balance each and every system.[...]

14 T able 7. System T roubleshooting Chart PROBLEM POSSIBLE CAUSES POSSIBLE CORRECTIVE STEPS Compressor will not run 1. Main switch open. 1. Close switch. 2. Fuse blown. 2. Check electrical circuits and motor winding for shorts or grounds. Investigate for possible overloading. Replace fuse after fault is corrected. 3. Thermal overloads tripped. 3. [...]

15 Preventive Maintenance Air Cooled Condensing Units Quarterly 1) Visually inspect unit • Look for signs of oil stains on interconnection piping and condenser coil. Pay close attention to areas around solder joints, building penetrations and pipe clamps. Check any suspect areas with an electronic leak detector . Repair any leaks found and add re[...]

16 Wiring Diagram for BACU51D2CHPQ 208V 14 AWG COMPRESSOR 1 M7 M8 FAN ARRANGEMENT COMP- 1 ALL COMPRESSORS THERMALLY PROTECTED COMPRESSOR 3 SEE COMPRESSOR ELECTRIC BOX COVERS FOR PROPER CONNECTION M4 M3 M5 M6 M1 M2 COMPRESSOR 2 ZR1 2 ZR19 COMP-3 COMP- 2 COMP-4 ENTRANCE ELECTRICAL COMPRESSOR 4 ZR16 ZR16 50 A C1 75 A C2 # 8 AWG 6 AWG # C4 60 A C3 60 A[...]

17 Wiring Diagram for BACU59D2CHPQ 208V 14 AWG COMPRESSOR 1 M7 M8 FAN ARRANGEMENT COMP-1 ALL COMPRESSORS THERMALLY PROTECTED COMPRESSOR 3 SEE COMPRESSOR ELECTRIC BOX COVERS FOR PROPER CONNECTION M4 M3 M5 M6 M1 M2 COMPRESSOR 2 ZR12 ZR19 COMP-3 COMP-2 COMP-4 ENTRANCE ELECTRICAL COMPRESSOR 4 ZR19 ZR19 50 A C1 75 A C2 # 8 AWG 6 AWG # C4 75 A C3 75 A # [...]

18 Control Circuit Wiring Diagram for BACU51 and BACU59[...]

19 Submittal[...]

20 Submittal[...]

21 System Reference Data The following information should be filled out and signed by Refrigeration Installation Contractor at time of start-up. Date System Installed: _____________________________________________________ Installer and Address: _____________________________________________________ __________________________________________________[...]

22 Notes[...]

23 Notes[...]

H EA TCRAFT R EFRIGERA TION P RODUCTS LLC 2175 W EST P ARK P LACE B OULEV ARD • S TONE M OUNT AIN , GA 30087 USA 770-465-5600 • F AX : 770-465-5990 WWW . HEA TCRAFTRPD . COM S inc e produc t im provem e nt i s a c ontinui n g ef for t , we re s er v e th e ri g ht to mak e c han g e s in sp e c i fi c ation s wi tho u t n o tice . V isi t us on[...]