Carrier 30 GA- Manuals

6 30GH/GZ A B C D E F G 009-013 1160 1310 1781 1200 1000 1000 1000 015-025 1720 1246 1833 1200 1000 1000 1000 030-035 2150 1370 2052 1200 1000 1000 1200 All dimensions are given in mm. Dimensions and clearances (unit with optional Hydroflow kit) CAUTION: ONLY PRO-DIALOG UNITS CAN BE EQUIPPED WITH TH...

10 Minimum evaporator water flow rates 30GH/GZ Min. flow rate, l/s 009 0.3 013 0.5 015 0.7 020 0.8 025 1.0 030 1.2 035 1.3 If the flow rate is lower, follow the recommendations below:a. It is possible to install several chillers of lower capacity inseries, each one supplying a part of the ∆ T. b. Th...

11 1 2 3 2 3 4 5 6 7 8 9 10 15 20 30 40 50 60 70 80 4 6 8 10 12 14 16 18 20 30 40 60 80 100 120 140 Qm 3 /h. Qm 3 /h. 160 200 180 160 140 120 100 80 60 40 20 0 20 18 16 14 12 10 8 6 4 2 0 kPa m WG I/s. 0,5 1 1,5 2,5 3,5 5 7 10 15 20 APPLICATION DATA (UNIT WITH OPTIONAL HYDRONIC KIT) Water flow rate ...

12 ` • The water circulating pumps in the HYDROFLOWmodule are sized to cover the widest application range.For this reason it is essential to install a water flowcontroller in the hydraulic circuit to maintain the waterflow at the desired flow rate. With the pressure lossgenerated by the water flow c...

13 INSTALLATION SAFETY CONSIDERATIONS Installation, start-up and servicing this equipment can behazardous due to system pressures, electrical components andequipment location (roofs, elevated structures, etc.). Only trained, qualified installers and service mechanics shouldinstall, start-up and serv...

14 Water connections Refer to the certified dimensional drawings for the sizes andpositions of all water inlet and outlet connections. The waterpipes must not transmit any radial or axial force to the heatexchangers or any vibration to the pipework or building. The water supply must be analysed and ...

15 Power supply The power supply must conform to the specification on thechiller nameplate. The supply voltage must be within the rangespecified in the electrical data table. For connections refer to the wiring diagrams. WARNING: Operation of the chiller with an improper supplyvoltage or with excess...

16 Design set point adjustment (three-step thermostat) Legend:A - Differential between stages B - Differential on one contact R, Y, B - Thermostat contact reference O - Open contact F - Closed contact Set point adjustment When the unit is ready for operation, insert a small screwdriverin the adjusti...

17 SERVICING REFRIGERATION COMPONENTS Servicing must be done by a qualified refrigeration engineer. WARNING: Before doing any work on the machine ensure thatthe power is switched and locked off and that all isolators aretagged. If a refrigerant circuit is opened, it must be evacuated,and recharged, ...

18 Discharge gas thermostat(30GH/GZ 015/035) - electromechanical version or unitswith low-temperature optionA sensor in each compressor discharge line opens to shut downthe compressor if the discharge gas temperature exceeds thepreset level. Cut out 146 ° C Cut in 113 ° C Crankcase heaterThe compres...

19 Heat exchangers Brazed plate heat exchanger (evaporator) Protection devices - freeze-up prevention thermostatThe evaporator is protected against freeze-up. The protection isprovided by a sensor installed in the unit in the PRO-DIALOGversion and by a thermostat in the electromechanical version. Ev...

20 Filter-drierThe filter-drier keeps the circuit clean and free of moisture. Thesight glass indicates when it is necessary to change the cartridgein the filter-drier. A temperature difference between the inletand the outlet of the filter-drier indicates fouling of the drier. NOTE: The unit must run...

22 SYMPTOMS Pump will not start Pump stops Pump runs continuously Noises in system Pressure loss CAUSE Isolator switch openFlow controller openCircuit breaker open Contactor stuck openPump connections loose Control components poorly connectedLow supply voltageThermal sensor trippedPump seized Flow c...