Carrier GY- User Manual

Page 2 - CONTENTS; Page

CONTENTS Page Start-up checklist .......................................................................................................................................................................... 3 Dimensions and clearances .......................................................................

Page 3 - Safety device setting:; NOTE: Please fill in this sheet during the installation

START-UP CHECK LIST Equipment sold by: Contract No.: Installed by: Contract No.: Site address: Start-up date: Equipment type and serial numbers: Electrical data: Supply voltage: Ph. V Ph. 2 V Ph. 3 V Nominal voltage: V % network voltage: Current draw: Ph. 1 A Ph. 2 A Ph. 3 A Main circuit breaker rat...

Page 4 - Dimensions and clearances

4 30GV/30GY 025-035 30GV/30GY 020 36 1868 800 800 600 950 915 36 36 36 3327 2028 983 800 800 600 1800 950 36 36 A B A B 2103 A-B: Clearance only required on one side A-B: Clearance only required on one side Dimensions and clearances

Page 7 - Follow all safety codes.

7 APPLICATION DATA Minimum and maximum evaporator water flow rates 30GY/GV Min flow rate, l/s Max. flow rate, l/s 020 1.2 4.8 025 1.6 8.0 030 1.6 8.0 035 2.4 9.4 044 3.2 16.0 049 3.2 16.0 059 4.8 18.4 Minimum operating temperature ° C Single-speed motor 14 Two-speed motor 4 Dampers -20 Maximum chill...

Page 8 - Preliminary checks; Size and location of the chilled water piping.; Mechanical connection; Fasten beams 2 and 3 with screw 6 and washer 7 to unit B.; Duct connections; The fan must not be rotated without the panels being fitted.; Minimum outdoor operating temperature (; Fan module; Check the rated motor current on the nameplate.

8 Preliminary checks Before installing and connecting the unit check:- The required clearances for correct unit operation andmaintenance. - Size and location of the chilled water piping. - Location and electrical characteristics of the availablepower supply which must agree with the unit nameplatera...

Page 9 - Fan speed adjustment tables; ESP; External static pressure, Pa; kW; Fan motor power input, kW; Fan laws; The air flow rate varies as a direct function of the speed ratio:

9 Fan speed adjustment tables 30GV and 30GY 020 Air flow 6 r/s 7 r/s 8 r/s 9 r/s 10 r/s 11 r/s 12 r/s 13 r/s 14 r/s l/s ESP kW ESP kW ESP kW ESP kW ESP kW ESP kW ESP kW ESP kW ESP kW 1900 61 0.6 97 0.9 137 1.1 180 1.4 226 1.7 277 1.9 330 2.2 388 2.4 445 2.7 2100 52 0.7 89 1.0 130 1.3 174 1.6 222 1.8...

Page 10 - Water connections; Note the water inlets and outlets of the heat exchangers.; Typical hydraulic circuit diagram

10 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 ...

Page 13 - Electromechanical control

13 Actual start-up IMPORTANT:• Commissioning and start-up of the chiller must besupervised by a qualified refrigeration engineer. • Start-up and operating tests must be carried out with athermal load applied and water circulating in theevaporator. • All set point adjustments and control tests must b...

Page 14 - Leaks must be repaired immediately; Recharging liquid refrigerant (30GV units); After detection and repair the unit can be recharged.

14 SERVICING REFRIGERATION COMPONENTS Any technician attending the machine for any purpose must bea fully 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 open...

Page 15 - the insulating foam is intact and securely in place.; Drain the water from the cooler.

15 WARNING: Never open or disconnect any switch or circuitbreaker which will cut the supply to the heaters, unless the unitis to be shut down for lengthy service or repair or for aseasonal shut down. In all cases the heater must be energisedfor at least 24 hours before a compressor is restarted. Hea...

Page 16 - Elliott tube plug; Condenser coil

16 Four evaporator tubes are swaged into the end plate and cannotbe removed. A dot punch mark in the end plate opposite eachone identifies each of them. If any of them develop a leak, thetube must be plugged, as described below. Plugging evaporator tubesA leaking tube can be plugged pending replacem...

Page 17 - Fan motor replacement

17 For normal maintenance routines we recommend using 1 kg ofthe concentrated product, diluted to 10%, to treat a coil surfaceof 2 m 2 . This process can either be carried out with a TOTALINE applicator gun (part No. PE01 WA 4000EE) orusing a high-pressure spray gun. With pressurised cleaningmethods...

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