Marstair MCU+ 180-200 Скачать руководство пользователя страница 8

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NOTE: 

The condenser fan may stop if the operating pressure drops below 200 psig (13.8 barg) 

 

R134A: 140 

– 145 psig (9.7 – 10 barg) at 32°C ambient temperature, 250 – 260 psig (17.2 – 17.9 barg) at 55°C 

ambient temperature 

to achieve this adjust the screw clockwise to increase pressure or anticlockwise to decrease. 

Each ½ turn will alter the pressure by approx 5 psig (0.5 barg) 

 

Pressure changes per turn of adjusting screw: 

 
Pressure change: 9.2 … 21.2 bar: 
Clockwise ~ +2,5 bar, counter clockwise ~ -2,5 bar  
 
After adjustment, re-insert sealing plug and make sure that it is properly fitted. IP65 protection  
requires firmly sealed plug 
 

NOTES: 

Tolerances for condensing temperatures setpoint: ±2K 
 

SAGINOMIYA (XGE-4C) 
 

 
 
 
 
 
 
 
 
 
 
 

 
R134A: 140 

– 145 psig (9.7 – 10 barg) at 32°C ambient temperature, 250 – 260 psig (17.2 – 17.9 barg) at 55°C 

ambient temperature 

to achieve this adjust the screw clockwise to increase pressure or anticlockwise to decrease. 

Each ½ turn will alter the pressure by approx 5 psig (0.5 barg) 

 
 

Pressure changes per 1 turn of adjusting screw:

Pressure change: 10 … 25bar:

 

Clockwise ~ +1.5 bar, counter clockwise ~ -1.5 bar  

 

 

WHEN INSTALLATION HAS BEEN COMPLETED - CHECK:-

 

1.

All pipe work and joints for leakage. 

2.

All pipe work and fittings for insulation. 

3.

All bolts are secure and that the fan rotates freely 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание MCU+ 180-200

Страница 1: ...Marstair Ltd recommend that personnel working on this equipment be skilled and fully conversant with the appropriate Air Conditioning Refrigeration and Electrical practices and have sound knowledge o...

Страница 2: ...nting feet PACKED DIMENSIONS AND WEIGHTS CONDENSING UNITS Model MCU 180 MCU 200 HEIGHT mm 1280 1280 WIDTH mm 1215 1215 DEPTH mm 465 465 WEIGHT kg 3 Ph 123 178 FEATURES ACCESSORIES OUTDOOR MCU Fan spee...

Страница 3: ...n cooling mode add 3dBA or 3NC for units at an intersection of a wall add 1dBA or 1NC for high level wall mounted units ELECTRICAL DATA Cooling Data rated at 55C external conditions MCU 180 200 FAN MO...

Страница 4: ...C LP The installer will require 2 open ended spanners for securing the flare fittings A 4 or 5mm Allen Key for the valves dependant on valve type Note It is easier to fit kits prior to mounting the un...

Страница 5: ...or unit are shown in the table opposite Use of these sizes and lengths is recommended in order to achieve optimum system performance SUCTION LINE SIZE LIQUID LINE SIZE MCU 0 6M 6 15M 15 21M 21 45M 0 2...

Страница 6: ...tems require a supply to the outdoor ducted unit with connecting cables run to the indoor unit SCROLL COMPRESSOR ROTATION On 3 Phase units it is possible for the scroll compressor to run backwards Thi...

Страница 7: ...to adjust this to suit site conditions to raise or lower the nominal head pressure a With the system switched off connect a high pressure gauge to the liquid line service valve b Switch on the system...

Страница 8: ...ug and make sure that it is properly fitted IP65 protection requires firmly sealed plug NOTES Tolerances for condensing temperatures setpoint 2K SAGINOMIYA XGE 4C R134A 140 145 psig 9 7 10 barg at 32...

Страница 9: ...Accessory 27 Fan guard 4 Terminal screw screw 16 Reversing valve MHPUE 28 Fascia panel 5 Terminal 4 way 17 29 Corner panel 6 Contactor 18 Service valve expansion 30 Support bracket 7 Earth terminal 19...

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