background image

MEES18K085

SAFET

Y

 HANDL

ING FOR R3

2

 7

3. Installation flow chart

SAFETY HANDLING FOR R32

Hydro 

unit/HBC is 

installed in the space where 

the refrigerant concentration is 

less than 0.16 (kg/m

3

when refrigerant 

leaks. 

Two safety 

measures: alarm 

and shut-off valves required 

by applicable regulations, are 

installed additionally.

Two safety 

measures: alarm 

and ventilation required by 
applicable regulations, are 

installed additionally.

Two safety 

measures: shut-off 

valves and ventilation required 

by applicable regulations, are 

installed additionally.

Shut-off valves 

required by applicable 

regulations are installed 

additionally.

Mechanical 

ventilation required by 

applicable regulations is installed 

additionally.

Small room 

installation

Installation 

not allowed

Installation 

not allowed

Installation 

not allowed

Installation 

not allowed

Installation OK

Installation OK

(4) Small room 

installation

(Alarm+Shut-off valves)

NEXT PAGE

NO

NO

NO

<Refrigerant concentration 
determination>
IEC/GG.10.4/GG.10.5
ISO/part1-A.5.2.2/A.5.2.3

Installation OK

Installation OK

(5) Installation on 

ceiling

(Alarm+Ventilation)

NO

Installation OK

Installation OK

(6) Small room 

installation                                 

(Shut-off Ventilation)

NO

Installation 

not allowed

Installation 

not allowed

NO

Installation OK

Installation OK

(7) Small room 

installation                 

(Shut-off valves)

<Shut-off valve 
requirement>
IEC/GG.12
ISO/part3-6.4

Installation OK

Installation OK

(8) Small room 

installation                            

(Mechanical ventilation)

<Mechanical 
ventilation 
requirement>
IEC/GG.11.3
ISO/part3-6.3.3

YES

YES

YES

YES

YES

YES

0000005090.BOOK  7 ページ  2018年12月27日 木曜日 午前10時3分

Содержание HYBRID CITY MULTI Series

Страница 1: ... 2 Confirm the Critical concentration and take countermeasure 2 2 Installation restrictions 3 2 1 Installing the outdoor unit or the Hydro unit outdoor 3 2 2 Installing the Hydro unit or the HBC indoor 5 3 Installation flow chart 6 4 Installation chart annex 10 5 Regulatory requirements list for safety measures 13 0000005090 BOOK 1 ページ 2018年12月27日 木曜日 午前10時3分 ...

Страница 2: ...ration Rmax is over 0 063kg m3 If no then the HYBRID CITY MULTI is safe against refrigerant leakage If yes following countermeasure is recommended to do at site Countermeasure 1 Smaller total charge making Wmax smaller e g Avoid connecting more than 1 Outdoor unit to one room e g Using smaller model size but more Outdoor units e g Shorten the refrigerant piping as much as possible Note 1 In princi...

Страница 3: ...the base it may reach a flammable concentration in case the room is small To avoid ignition maintain a safe work environment by ensuring appropriate ventilation If the refrigerant leaks in a room or an area that has insufficient ventilation refrain from using flames until the work environment is improved by ensuring appropriate ventilation Do not install the outdoor unit in a basement or machinery...

Страница 4: ... m Height from the ground to an opening 0 125 m Width of an opening 0 9 m Longitudinal direction Example space with a louver A Amin M kg 10 20 30 40 50 60 112 223 334 445 556 667 Amin m2 Install the unit in a space with an installation area of Amin or more corresponding to the refrigerant amount M M factory charged refrigerant refrigerant to be added on site Secure sufficient installation space mi...

Страница 5: ...ed quantity of safety measures height of ceiling space 1 8 m 0 10 20 30 40 50 60 70 80 0 50 100 150 200 250 300 350 400 450 500 550 600 650 SyStem refrigerant amount kg NG ISO 5149 At least two safety measures are required At least one safety measure is required Construction guidance Room volume m3 Do not place an ignition source in a space where Hydro unit HBC is installed or adjacent spaces not ...

Страница 6: ...n equipment is NOT placed in the space where Hydro unit HBC is installed Hydro unit HBC is installed at the height of 1 8m or higher Hydro unit HBC is installed on the ceiling of a space except on the lowest basement floor Alarm required by applicable regulations is installed additionally START START Installation OK Installation OK 1 Machinery room installation Continuous ventilation Machinery roo...

Страница 7: ...ed additionally Small room installation Installation not allowed Installation not allowed Installation not allowed Installation not allowed Installation OK Installation OK 4 Small room installation Alarm Shut off valves NEXT PAGE NO NO NO Refrigerant concentration determination IEC GG 10 4 GG 10 5 ISO part1 A 5 2 2 A 5 2 3 Installation OK Installation OK 5 Installation on ceiling Alarm Ventilation...

Страница 8: ...the refrigerant concentration is less than 0 063 kg m3 when refrigerant leaks Hydro unit HBC is installed in the space where the refrigerant concentration is less than 0 16 kg m3 when refrigerant leaks Hydro unit HBC is installed in the space where the refrigerant concentration is less than 0 16 kg m3 when refrigerant leaks Two safety measures alarm and shut off valves required by applicable regul...

Страница 9: ...ionally 12 Ceiling space installation Circulation Alarm Ventilation NO NO 15 Small room installation Circulation Mechanical ventilation Mechanical ventilation requirement IEC GG 11 3 ISO part3 6 3 3 NO YES YES YES Two safety measures alarm and ventilation required by applicable regulations are installed additionally Two safety measures shut off valves and ventilation required by applicable regulat...

Страница 10: ...m Unoccupied space not designated a machinery room Unoccupied space not designated a machinery room 3 Small room installation Alarm 2 Small room installation No safety measures 4 Small room installation Alarm Shut off valves 5 Installation on ceiling Alarm Ventilation Height 1 8m Height 1 8m Height 1 8m Height 1 8m Height 1 8m Height 1 8m Leak detector alarm Leak detector alarm Alarm Hospital etc ...

Страница 11: ...rculation 10 Small room installation Circulation Alarm 11 Small room installation Circulation Alarm Shut off valves Unoccupied space not designated a machinery room Unoccupied space not designated a machinery room Unoccupied space not designated a machinery room Alarm Hospital etc Alarm Hospital etc Alarm Hospital etc Unoccupied space not designated a machinery room 8 Small room installation Mecha...

Страница 12: ...rm Supervised location Supervised location Supervised location Alarm Hospital etc Alarm Hospital etc Alarm Hospital etc Concentration check Concentration check Concentration check Concentration check Height 1 8m Height 1 8m Height 1 8m Height 1 8m Height 1 8m Height 1 8m 14 Small room installation Circulation Shut off valves 15 Small room installation Circulation Mechanical ventilation 12 Ceiling ...

Страница 13: ... 6 4 1 5 Safety shut off valve shall shut off the refrigerant under the control of refrigerant leakage detector ISO 1 A 5 2 1 ISO 3 6 4 1 6 The air conditioner and safety shut off valve shall use different electrical power supply ISO 3 7 2 1 Mechanical ventilation shall be operated continuously or be switched on by the refrigerant detection system IEC GG 11 3 4 ISO 3 6 3 3 3 2 During the continuou...

Страница 14: ...te they shall be tested to verify they still sense refrigerant at 25 of LFL or lower 6 The sensor shall include a means for self testing and the test shall be run at least every hour and if a failure is detected an alarm shall be activated IEC LL 7 7 If the sensor has a defined life and requires replacement after a given period the detection system shall initiate an alarm or indication that replac...

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