FläktGroup EQKC 014 Скачать руководство пользователя страница 4

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EQKC COMBI COOLER

FläktGroup

DC_8931GB 20180202_R0

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Installation and maintenance instructions

INSTALLATION AT HIGH ALTITUDES

Control system eQ

Control system

Combi Cooler

Styrsystem

Combi Cooler

ALARM

0-10 V

Summation Alarm

CP51 Operation

52
51

Styrsystem eQ

Supply air coil

actuator

3/4

24 VAC

START

Alt.

Control signal

heating

HEAT

ING

Ventilställdon värme

eQ Styrlåda

(M)

(Y)
(G0)

(G)

Interlocking

Valve actuator heating

Control box eQ

Содержание EQKC 014

Страница 1: ...303 2008 and the necessary protective equipment The necessary protective equipment should include safety goggles and gloves Automatic start Open and lock the cooling unit s main circuit breaker before starting any work Do NOT tread on the unit Use only original spare parts Disregarding any of the above points can lead to a serious safety risk and the withdrawal of the guarantee product liability W...

Страница 2: ...2006 LIFTING AND TRANSPORT The unit can be lifted by its lifting eyes if its weight does not exceed 1 050 kg If the unit weighs more than 1 050 kg it must be lifted by a forklift truck from below using the specified holes Lifting the unit other than by using the specified holes can cause the unit to overturn due to the offset centre of gravity Requirements related to the floor The floor must be le...

Страница 3: ...dication CP51 Operation Signal for slow valve closure Summation alarm Cooler alarm Unit interlocked by CP51 1 2 1 2 3 3 1 2 1 2 1 2 1 2 1 0 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 External Combi Cooler BMS Unit GH53 Room conden sation sensor GT53 Chilled beam water temperature sensor SV53 Chilled beam water valve actuator 1 G G0 G G0 Y G G0 Y Q11 Q12 2 3 4 1 2 3 1 2 3 1 2 3 4 1 2 3 1 2 3 24 V AC Gnd 0 10 V ...

Страница 4: ...trol system eQ Control system Combi Cooler Styrsystem Combi Cooler ALARM 0 10 V Summation Alarm CP51 Operation 52 51 57 56 60 59 58 64 63 Styrsystem eQ Supply air coil actuator GO AR GO GP3 4 Z GO AC YR YH 24 VAC GO G START START NO C YC Alt Control signal heating HEATING Ventilställdon värme eQ Styrlåda M Y G0 G Y G0 G M Interlocking 61 62 Valve actuator heating Control box eQ ...

Страница 5: ...ut the power to the entire cooling unit When performing work on the cooling unit always open and lock the main circuit breaker ELECTRICAL DATA FUSE PROTECTION AND AMOUNT OF REFRIGERANT This product contains fluorinated greenhouse gas R134A with a GWP factor of 1430 Refrigerant quantity 5 2 22 8 kg corresponding to 7 4 32 6 tonnes of CO2 equivalent Choice of cable The choice of cable depends on the...

Страница 6: ...insu lation must be diffusion tight It must be possible to access bleed valves and drain valves following insulation Filter max gauge 500 μm It is essential that the water is free of impurities If not the heat transfer in the heat exchangers will be reduced as they get dirty In the worst case the exchanger can be permanently damaged The filter should be mounted on the water circuit s inlet to the ...

Страница 7: ...ribution between the supply air and the chilled beam circuit The flow is both adjusted and measured with the STAD valve located inside the Combi Cooler The right flow over the supply air coil is available in the unit documentation The technical sales support division at FläktGroup has to be contacted if the unit documentation is not supplied at delivery It s summer case that the flow is adjusted f...

Страница 8: ...ISSIONING Checklist BEFORE STARTUP CHECK THE FOLLOWING General Transport damage installation site good lighting level surface etc Condensation drain Oil level in compressors Runoff from the water filled condenser Refrigerant circuit Leakage of refrigerant leakage of compressor oil Crankcase heater in operation Electrical connection and control checking for loose cables Phase sequence and post tigh...

Страница 9: ...rmation to personnel undertaken FUNCTION The compressors are connected in three cooling stages The outgoing water temperature depends on whether there is a risk of condensation in the chilled beams or not See Page 9 for a description of the control unit The air handling unit can be used for both supply air and extract air control The cooling unit must be interlocked by the extract air fan and main...

Страница 10: ... main circuit should be approximately 12 C irrespective of how many compressors are in operation In normal operation the setpoint of the water to the chilled beam circuit is 15 C as standard Setpoint offset risk of condensation The compressors are controlled by the water temperature down stream of the evaporators The temperature in the main circuit must be approximately 6 C otherwise there is a ri...

Страница 11: ...ut water temperature from cooling circuit 2 Screen 3 BeamWater In 15 2 Input water temperature to the chilled beam circuit Valve signal 085 Control signal to the chilled beam valve 0 100 0 10V Forced closing The text is displayed in the event of the forced closure of the chilled beam valve Screen 4 Setpoints when Normal running The setpoints applicable during normal operation i e when the condensa...

Страница 12: ...s tripped 1 WaterTemp Alarm Ouput Temp circuit 1 is less than 3 C Reset the alarm relay 2 WaterTemp Alarm Ouput Temp circuit 2 is less than 3 C Reset the alarm relay 1 WatTemp Stop 300 KM1 stopped for 5 min if the temp in circuit 1 is less than 4 C 2 WatTemp Stop 300 KM2 stopped for 5 min if the temp in circuit 2 is less than 4 C 1 Capacity Alarm KM1 s Capacity switch has tripped Alarm locked for ...

Страница 13: ...at least once a year Check the following 1 Evaporation condensation temperature Leakage inspection every 12 months in accordance with EU requirements 2 Hot vapour temperature 3 Expansion valve superheating of suction vapour 4 Safety equipment pressure switch trip function 5 Cooling capacity 6 Automation and control equipment functional inspection 7 Electrical equipment post tightening power connec...

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FläktGroup EQKC 014, Инструкция по установке и обслуживанию

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