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08

6.3 Installation foundation

6.3.1 Base structure

Outdoor unit base structure design should take account of the 

following considerations:

1) A solid base prevents excess vibration and noise. Outdoor 

unit bases should be constructed on solid ground or on 

structures of sufficient strength to support the units’ weight.

2) Bases should be at least 200mm high to provide sufficient 

access for installation of piping. Snow protection should also be 

considered for the base height.

3) Either steel or concrete bases may be suitable.

4) A typical concrete base design is shown in Fig. 6-4. A typical 

concrete specification is 1 part cement, 2 parts sand and 4 parts 

crushed stone with steel reinforcing bar. The edges of the base 

should be chamfered.

5) To ensure that all contact points are equally secure, bases 

should be completely level. Base design should ensure that the 

points on the units’ bases designed for weight-bearing support 

are fully supported. 

ŐPP

Ő

200mm

Rubber anti-vibration pads

Solid ground / surface

Outdoor unit

Concrete base

h≥200mm

Fig.6-4 Front view of base structure

6.3.2 Location drawing of installation 

foundation of the unit: (unit: mm) 

1) If the unit is located so high that it is inconvenient for 

maintenance personnel to conduct maintenance, the suitable 

scaffold can be provided around the unit.

2) The scaffold must be able to bear the weight of maintenance 

personnel and maintenance facilities.

3) The bottom frame of the unit is not allowed to be embedded 

into the concrete of installation foundation.

4) A drainage ditch should be provided to allow drainage of 

condensate that may form on the heat exchangers when 

the units are running in heating mode. The drainage should 

ensure that condensate is directed away from roadways and 

footpaths, especially in locations where the climate is such that 

condensate may freeze.

 (unit: mm) 

Inlet and outlet 

pipe side

Drainage 

channel

Anchor bolt

Electric 

control box 

side

Fig. 6-5  Top view of schematic diagram of installation 

dimension of 65KW

Inlet and outlet 

pipe side

Drainage 

channel

Anchor bolt

Electric 

control box 

side

 (unit: mm) 

Fig. 6-6  Top view of schematic diagram of installation 

dimension of 110KW

6.4 Installation of damping devices

6.4.1 Damping devices must be provided 

between the unit and its foundation.

By means of the Φ15mm diameter installation holes on the 

steel frame of the unit base, the unit can be fastened on 

the foundation through the spring damper. See Fig.6-5, 6-6 

(Schematic diagram of installation dimension of the unit) for 

details about center distance of the installation holes. The 

damper does not go with the unit, and the user can select the 

damper according to the relevant requirements. When the unit 

is installed on the high roof or the area sensitive to vibration, 

please consult the relevant persons before selecting the 

damper.

6.4.2 Installation steps of the damper

Step 1. Make sure that the flatness of the concrete foundation is 

within ±3mm, and then place the unit on the cushion block.

Step 2. Raise the unit to the height suitable for installation of the 

damping device.

Step 3. Remove the clamp nuts of the damper. Place the unit on 

the damper, and align the fixing bolt holes of the damper with 

the fixing holes on the unit base.

Step 4. Return the clamp nuts of the damper to the fixing holes 

on the unit base, and tighten them into the damper.

Step 5. Adjust the operational height of the damper base, and 

screw down the leveling bolts. Tighten the bolts by one circle to 

ensure equal height adjustment variance of the damper.

Step 6. The lock bolts can be tightened after the correct 

operational height is reached.

Содержание KEM-HT-75

Страница 1: ...anual carefully and keep it for future reference The figure shown in this manual is for reference only and may be slightly different from the actual product KEM HT 65 DRS5 KEM HT 75 DRS5 KEM HT 110 DR...

Страница 2: ...rangement space of the unit 07 6 3 Installation foundation 08 6 4 Installation of damping devices 08 6 5 Installation of device to prevent snow build up and strong breeze 09 7 CONNECTION DRAWING OF PI...

Страница 3: ...arts 31 11 7 First startup after shutdown 32 11 8 Refrigeration system 32 11 9 Disassembling compressor 32 11 10 Auxiliary electric heater 32 11 11 System antifreezing 32 11 12 Replacement of safety v...

Страница 4: ...t water temperature C Outlet water temperature C Fig 1 1 1 Cooling operating range Fig 1 1 2 Heating operating range 65KW 110KW HEATING Low leaving water temperature mode can be set by wired controlle...

Страница 5: ...d to alert against unsafe practices NOTE Indicates situations that could only result in accidental equipment or property damage DANGER Explanation of symbols displayed on the indoor unit or outdoor un...

Страница 6: ...the wires so that the front panel can be securely fastened If the front panel is not in place there could be overheating of the terminals electric shocks or fire After completing the installation work...

Страница 7: ...g regulation and this circuit diagram An all pole disconnection device which has at least 3mm seperation distance in all pole and a residualcurrent device RCD with the rating not exceeding 30mA shall...

Страница 8: ...s 4 If the unit can be achieved by unauthorized personnel take protective measures for safety considerations such as installing a fence These measures can prevent man caused or accidental injuries and...

Страница 9: ...wing Front view Left view Top view Fig 6 1 Outline dimensional Table 6 1 Model 65KW 110KW A 2000 2220 B 960 1135 C 1770 2300 D 816 910 E 190 185 F 269 270 After installing the spring damper the total...

Страница 10: ...less than the static pressure outside the fan The space between the unit and sunk fence or Persian blinds should also meet the requirement 3 If the unit needs to operate in winter and the installatio...

Страница 11: ...densate is directed away from roadways and footpaths especially in locations where the climate is such that condensate may freeze unit mm Inlet and outlet pipe side Drainage channel Anchor bolt Electr...

Страница 12: ...snow 1 Measures to prevent build up of snow The base height should be as least the same as the predicted snow depth in the local area Outdoor unit Base height Fig 6 9 Snow prevention base height 2 Li...

Страница 13: ...fferential pressure by pass valve Auxiliary electric heater Auxiliary electric heater Auxiliary electric heater Drain valve Drain valve Plate exchanger Drain valve Drain valve Drain valve Air conditio...

Страница 14: ...ced on the main outlet pipe The hot water tank and the hot water exchange pump of the unit use the CN125 220V port control switch on the slave board of the 0 unit pump output is controlled through CN1...

Страница 15: ...e heat exchanger Cover 4 give access to the electrical parts Cover 5 6 give access to the hydraulic compartment Cover 1 Cover 2 Cover 3 Cover 6 Cover 5 Cover 4 Fig 8 4 Doors of 110KW Cover 1 2 3 give...

Страница 16: ...ter all modules stop operating 3 In case of shutdown under the pump mode the pump can be directly shut down 4 CN74 CN67 CCH Crankcase heater 5 CN75 CN66 EVA HEAT Electric of water side heat exchanger...

Страница 17: ...72 EXVC EVI electronic expansion valve Used for EVI 31 CN70 EXVA System electronic expansion valve1 32 CN71 EXVB System electronic expansion valve2 Used for cooling 33 SW3 Up button a Select different...

Страница 18: ...ipeline Auxiliary Heater HEAT2 Hot Water Tank Auxiliary Heater Attention the control port value of the pump actually detected is ON OFF but not 220 240V control power supply so special attention shoul...

Страница 19: ...ase don t repair the controller by yourself since improper operation may cause electric shock damages to the controller and other bad results If the unit need repair please contact the maintenance cen...

Страница 20: ...8 8 3 Electrical wiring precaution c d Power wiring must be entrusted to professionals with electrician qualification Fig 8 8 4 Electrical wiring precaution d 8 4 5 Power supply specification Table 8...

Страница 21: ...tning arrester Surge current Grounding wire Grounding wire Grounding 3 Grounding 3 Grounding 2 Grounding 2 Grounding 1 Grounding 1 Building Do not connect the grounding wire of the lightning arrester...

Страница 22: ...ON OFF must be set by DIP switch The remote function of ON OFF is effective when S1 1 or S5 3 is chosen ON at the same time the wired controller is out of control Corresponding parallel connect the O...

Страница 23: ...is closed otherwise the ALARM port is open The ALARM ports are on the main control board See the wiring diagram for details 8 4 13 Control system and installation precautions a Use only shielded wires...

Страница 24: ...POWER POWER 380 415V 3N 50Hz RVV 300 500 5X16mm 2 RWP 300 300 3X0 75mm 2 RVV 300 500 2X1 0mm 2 RVVP 300 300 3X0 75mm 2 PUMP Contactor Over current relay POWER 380 415V 3N 50Hz The metal plate of cont...

Страница 25: ...X16mm 2 RWP 300 300 3X0 75mm 2 RVV 300 500 2X1 0mm 2 RVVP 300 300 3X0 75mm 2 PUMP Contactor Over current relay POWER 380 415V 3N 50Hz The metal plate of contactor installation box should be grounded M...

Страница 26: ...can be cut off without disturbing other heat exchangers i The flexible ports should be adopted between the interface of the heat exchanger and on site pipeline to reduce transfer of vibration to the b...

Страница 27: ...110KW Hoop connection DN65 Fig 8 19 8 5 3 Design of the store tank in the system kW is the unit for cooling capacity and L is the unit for G water flow in the formula counting the minimum water flow C...

Страница 28: ...h1 h2 h3 h4 H The lift of the pump h1 Main unit water resistance h2 Pump water resistance h3 Water resistance of the longest water loop distance includes pipe resistance different valve s resistance...

Страница 29: ...ation of multi module no more than 16 modules 2 Table of diameter parameters of main inlet and outlet pipes Table 8 9 Cooling capacity Total inlet and outlet water pipe inside nominal diameter 15 Q 30...

Страница 30: ...stalled For specific wiring see figure 8 18 9 STRAT UP AND CONFIGRUATION 9 1 Initial start up at low outdoor ambient temperatures During initial start up and when water temperature is low it is import...

Страница 31: ...a fault code If a fault occurs remove the fault first and start the unit according to the operating method in the unit control instruction after determining that there is no fault existing in the unit...

Страница 32: ...failure recovery 16 EP Discharge sensor failure alarm Recovered upon failure recovery 17 EU Tz sensor failure Recovered upon failure recovery 18 P0 P0 System high pressure protection or discharge temp...

Страница 33: ...ry 49 xL2 high voltage protection x 1or 2 1 for Compressor A 2 for Compressor B Recovered upon error recovery 50 xL4 MCE error x 1or 2 1 for Compressor A 2 for Compressor B Recovered upon error recove...

Страница 34: ...nt air conditioner errors which bring inconvenience to your life and work 2 Maintenance of main parts Close attention should be paid to the discharge and suction pressure during the running process Fi...

Страница 35: ...d water circulate and start up unit and make the low pressure control switch short circuit if necessary Slowly inject refrigerant into the system and check suction and discharge pressure Connection mu...

Страница 36: ...safety valve liquid vapor separator Fig 11 1 Replacement of safety valve The air outlet of safty valve must be connected to the appropriate pipe which can direct the leaking refrigerant to the appropr...

Страница 37: ...ng the period that the work is carried out The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere 8 Checks to the refrigeration equipmen...

Страница 38: ...Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper p...

Страница 39: ...bers of cylinders for holding the total system charge are available All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant i e special cylinders for th...

Страница 40: ...111111 1111111 Suction pressure 1111111 1111111 1111111 1111111 1111111 5 Check running current 1111111 1111111 1111111 1111111 1111111 6 Whether unit has been through refrigerant leakage test 1111111...

Страница 41: ...ure switch freeze proof device water flow volume controller Overcurrent device power phase sequence device etc Refrigerant Type R32 Chargeing volume kg 9 0 15 5 Water pipe system Water flow volume m3...

Страница 42: ...C Pdc 27 30 kW Tj 25 C EERd 5 64 Tj 20 C Pdc 19 29 kW Tj 20 C EERd 8 81 Degradation co efficient for chillers Cdc 0 90 Power consumption in modes other than active mode Off mode POFF 0 08 kW Crankcase...

Страница 43: ...kW Tj 25 C EERd 5 78 Tj 20 C Pdc 29 45 kW Tj 20 C EERd 7 05 Degradation co efficient for chillers Cdc 0 9 Power consumption in modes other than active mode Off mode POFF 0 14 kW Crankcase heater mode...

Страница 44: ...C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C COPcyc C...

Страница 45: ...L C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C COPcyc...

Страница 46: ...re WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C...

Страница 47: ...ure WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C...

Страница 48: ...rature WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 1...

Страница 49: ...erature WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj...

Страница 50: ...Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C COPcyc Cy...

Страница 51: ...C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C COPcyc...

Страница 52: ...e WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C C...

Страница 53: ...re WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12 C...

Страница 54: ...ature WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 12...

Страница 55: ...rature WTOL C Cycling interval capacity for heating at Tj 2 C Pcych kW Cycling interval efficiency at Tj 7 C COPcyc Degradation coefficient 4 at T 2 C Cdh Cycling interval capacity for heating at Tj 1...

Страница 56: ...16127100001537 V B...

Страница 57: ......

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