Johnson Controls SABROE ChillPAC Manual de usuario

ChillPAC and HeatPAC

Chiller/heat pump unit with reciprocating compressor

Installation guide EN

Installation guide - ChillPAC and HeatPAC

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Installation guide

ChillPAC and HeatPAC units

Please note that this installation guide only describes the main issues to consider dur-

ing installation.

Further installation guidance is available in the operating manual, which must be read

carefully before operating the equipment.

Please make sure that all local and national installation and safety precautions are

observed.

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Installation guide

Lifting instructions

Fig. 1

Before lifting the unit, make sure that straps/chains are properly secured to lifting eyes/shackles and that

the lifting equipment is in good condition. Also make sure that the lifting capacity of the crane and the

loading capacity of chains, straps, lifting eyes and shackles as a minimum correspond to the total weight

of the unit.

•When lifting the unit, please use the lifting devices on the base frame.

•It is recommended to use a yoke; this will protect the components and the insulation.

•The unit must not be lifted in the lifting devices on the compressor block and motor.

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Installation guide

Planning the machine room

When planning the machine room, it is important to make sure there is enough space around the plant

to allow for repairs and maintenance tasks to be performed.

Fig. 2 shows the minimum required spacing.

Fig. 2

A) For operation and opening of electric panel 1100 mm

B) For withdrawing suction filter and pistons 200 mm

C) For withdrawing pistons 200 mm

D) For withdrawing crane shaft

ChillPAC 104-106-108

ChillPAC 112-116

HeatPAC 24-26-28

HeatPAC 104-106-108-704-706-708

HeatPAC 112-116-712-716

500 mm

1000 mm

400 mm

500 mm

1000 mm

The foundation must have the necessary bearing strength and be as plane as possible.

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Installation guide

Vibration dampers

ChillPACs and HeatPACs are designed for either 4 or 6 vibration dampers. For installation on solid con-

crete floor, anti-vibration machine feet are sufficient. Such machine feet are designed for minimum 70%

vertical isolation (100% capacity).

For installation on decks, special dampers are often required. Please consult a vibration expert or a

Johnson Controls Denmark representative for further information.

To ensure optimum effect of each individual anti-vibration machine foot, the load on the feet must result

in roughly the same deflection of all machine feet, see Fig. 3. Deflection of a machine foot can be ad-

justed by increasing or reducing the load compared to the other supports by turning the adjusting rod.

Fig. 3: Anti-vibration machine foot

Other damper types can be adjusted by using liner plates.

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Installation guide

Connection of pipes

Connect all piping and mount all hoses and valves for compressor cooling.

The piping design must include considerations regarding function, suspension, vibrations, thermal ex-

pansion and pre-stress after welding in order to avoid high load on the unit connections.

The safety valves are fitted on the unit from factory. The pipe connection to the valve discharge branch

must be made in accordance with valid rules/standards. External piping and condensers are not pro-

tected by the safety valves fitted on the unit.

Leak and pressure test

Leak and pressure test according to the applied/local codes and rules. Isolate the compressor unit from

the test pressure or disconnect pressure transducers and safety valves. Never exceed the test pressure

of the unit stated on the unit name plate. All ChillPAC and HeatPAC units are pressure and performance

tested from factory.

Electrical connection

Connect power supply wiring according to electrical diagrams.

Final check

Check all relevant components, connections, electrical connections, safety valves, safety high pressure

cut-out and machine room safety.

Evacuation

Evacuate the system using a vacuum pump for 5 mm Hg and perform a vacuum test.

Note: The unit is pressurised with approximately 0.5 bar (g) nitrogen from factory. The nitrogen will often

be mixed with a minor amount of R717 vapour left from the factory test (absorbed in oil). This should be

taken into account when positioning the discharge from the vacuum pump.

Charge oil

Charge oil, if not charged from factory. Oil level should be visible in the middle of the upper sight glass.

Note:

ChillPAC units can be charged with either S68 or PAO oils.

HeatPAC units may only be charged with PAO oils.

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Installation guide

Charge refrigerant

The P&I diagram states the charge for each specific chiller or heat pump. Start out by charging 75% of

the specified R717 charge.

After start-up carefully charge more R717 until the suction superheat is between 0.5 and 3°K.

Check the liquid level in the evaporator. Droplets should come out of the top of the plates.

The plates should not be completely covered by liquid.

Note: The liquid level must never be visible in the inspection glass.

Power supply

Turn on power.

Control system

Check the UniSAB III control system settings including calibration according to the UniSAB III manual.

Motor

Check the direction of rotation of the compressor motor.

Coupling

Check alignment of coupling.

All ChillPACs and HeatPAC 104-116 and 704-716 are equipped with flange motors. Therefore, align-

ment is normally not necessary.

HeatPAC 24-26-28 are equipped with foot-mounted motors.

Johnson Controls Denmark ApS

Sabroe Factory

Christian X's Vej 201 ∙ 8270 Højbjerg

Denmark

Phone +45 87 36 70 00

www.sabroe.com

Version 2

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