User manual TECUMSEH SILENSYS

[. . . ] - The installation of the unit is subjected to the norms and technical standards for refrigerating and electrical connections in the respective country. cannot be held responsible if installation and maintenance are not carried out in accordance with these instructions. 2 TECHNICAL DATA 2. 1 Label (Refer to annexe 1, page 26) 2. 2 Safety devices All units are supplied with an adjustable HBP / LBP pressure switch, rated at 16A. 2. 3 Versions The following versions of condensing units are available: HBP / LBP pressure switch with manual reset - with fusible plug - Contactor and isolator - solenoid valve - suction accumulator evaporator fan contractor. [. . . ] (Refer to annexe 5, page 32 for the refrigeration connection) 3. 8 Electrical connections Only install the unit when isolated from the power supply. unit, by ensuring the safety of the installation and its smooth operation, it is necessary to: - Verify that the power supply voltage is compatible with that of the unit (refer to label) - Verify that the circuit diagram of the unit is compatible with that of the installation. - Size the wiring for the connection (power, control circuit) according to the properties of the installed unit. (refer to following table with defined power requirements annexe 7, page 34) - Protect and earth the electrical power supply. - Carry out electrical connections according to the norms of the respective country. CONNECTION OF THE COMPONENTS Refer to electrical diagram (annexe 7, pages 34 to 39) to connect the components. · Connect all control and safety devices installed on the unit. · Secure the cable/s with the cable clamps supplied with the unit. 4 PUTTING INTO OPERATION The connection valves are provided with a SAE 7/16"-20 UNF 2A gauge U connection with removable "Schrader" valve. 4. 1 Leak tightness of the circuit All connections must be systematically checked for leaks with an electronic leakage detector. 4. 2 Evacuation Evacuate the installation to about 200 micron metres Hg, to ensure a good quality vacuum. It is recommended to evacuate simultaneously on both sides (HBP and LBP) to accelerate the operation and to obtain an identical vacuum throughout the entire circuit. 4. 3 Refrigerant charge Only charge the installation with the refrigerant the unit has been designed for (refer to label). In the case of a blend, the refrigerant must always be charged in the liquid phase to avoid changes in the composition. Never start the compressor under vacuum (HBP and LBP), but slowly charge the refrigeration circuit to 4-5 bar in the case of R-404A or R-22 (4 bar) and to about 2 bar in the case of R-134a. The remaining charge is filled until the nominal operation conditions of the installation are reached, when the unit is running. Please refer as well to the chapter "Verification before start" before power is applied to the installation. Compatibility of the power supply voltage with that of the condensing unit (fan(s)). VERIFICATION AFTER START After some hours of operation, verify the following: 1. Voltage and power requirement of the unit. Carry out a general inspection of the installation (cleanliness, unusual noises. . . ). 4. 4 Fan speed control The rotation speed of the fan is controlled by a pressure device. [. . . ] 5. 3 Verifications Carry out a leak check once per year or according to national regulations. Verify regularly: · The safety and control devices settings, · The state of the electrical and refrigeration connections (security, oxidation. . . ), · The operating conditions, · The fixing of the unit on its support, · The fixing of the casing (no vibrations), · The operation of the crankcase heater. 5. 4 Drier The Silensys® units are provided with a drier : - Connection kits for each model: B22Z, B29Z, B43Z, B53Z, H38Z, H49Z, H54Z, H71Z, H84Z, H116Z/T, H123Z/T, H143Z/T, H162Z/T, H166Z/T, H46Y, H56Y, H68Y, H80Y, H89Y, H98Y. - delivered separately for the models: H14Z, H21Z, H25Z, H30Z, H15Y, H19Y, H23Y, H28Y, B08Z, B09Z, B10Z, B15Z. [. . . ]