McQuay ALZ "B" Installation And Maintenance Manual Download

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Air cooled water chillers
Air cooled motocondensing unit

ALZ “B” 011.1 ÷ 038.2
ALP “B” 011.1 ÷ 038.2

Cooling capacity from 40 to 145 kW
50Hz – Refrigerant: HFC 407C
Scroll Compressors

Installation and maintenance manual

304 C – 02/06 D

Date:

June 2002

Supersedes:

304 C- 02/01 C

Summary of Contents for ALZ "B"

Page 1: ...ooled motocondensing unit ALZ B 011 1 038 2 ALP B 011 1 038 2 Cooling capacity from 40 to 145 kW 50Hz Refrigerant HFC 407C Scroll Compressors Installation and maintenance manual 304 C 02 06 D Date Jun...

Page 2: ...Repeated check the safety devices and continous cycling of control components must be analyzed and corrected before being reset The simple design of the refrigeration circuit totally eliminates potent...

Page 3: ...Min C Max C Min C Max C Min C Max C Min C Max C 011 1 8 20 4 15 4 8 15 42 013 1 8 20 4 15 4 8 15 42 017 1 8 20 4 15 4 8 14 42 020 1 8 20 4 15 4 8 12 40 022 2 8 20 4 15 4 8 15 42 025 2 8 20 4 15 4 8 1...

Page 4: ...ap heat recovery cond 2 kW 100 4 116 1 123 9 143 9 151 3 Heating capacity 2 kW 132 4 152 4 166 3 189 6 200 9 Power input heat recovery cond 2 kW 35 8 41 5 47 9 51 2 55 4 Desuperheaters heating capacit...

Page 5: ...placed on the unit base that must to be removed only after the final destination In case the unit has to be moved again a similar solution is necessary Handling and lifting Care should be taken to avo...

Page 6: ...from the obstacle fig 4 For other installation solutions consult McQuay technicians Acoustic protection The low noise levels of the ALZ units means that they meet most of the most restrictive regulati...

Page 7: ...of fan speed Full alarm management Can be linked up to serial line for supervisory telemaintenance control Can be linked up to an external terminal unit Controlled devices Compressor Condensation fans...

Page 8: ...EO high supply voltage OFF OFF OFF OFF OFF OFF EP eeprom boot OFF OFF OFF OFF OFF OFF Cn discon remote terminal Ht high temperature ON Electrical features Power supply Voltage supply range 24V 15 10 5...

Page 9: ...D7 for alarm connection jumper connector for expansion board connection digital relay outputs to manage any controlled device the Y1 GND analog output for the connection of the optional boards for the...

Page 10: ...or main board P1 pin strip relative to the Y2 analog output to be normally left open except in particular situations see parameters F3 and F4 User Interface Terminal The terminal allows the access to...

Page 11: ...alue blinks on display the alarm code appears on the LCD alternatively with the temperature value After the alarms have been cleared either with automatic reset or by pressing the and keys simultaneou...

Page 12: ...de password which is different from the USER one to prevent any unauthorized access to the data Setting the password 00 flashes on the display Pressing the t and u buttons will allow you to stop the b...

Page 13: ...isplays values Buzzer sound after 5 password for USER parameters stores parameters in eeprom stores parameters in eeprom silences the buzzer PRG SEL Normal operating condition after 5 password for FAC...

Page 14: ...a Check the actual unit line voltage to be sure it is the same you can read on the compressor nameplate within 10 and that phase voltage unbalance does not exceed 3 Verify that adeguate power supply a...

Page 15: ...304 C 02 06 D pag 15 16 ALZ ALP B Unit dimensions Fans Arrangement ALZ ALP B 011 1 020 1 ALZ ALP B 022 2 033 2 ALZ ALP B 036 2 038 2 2780 011 1 020 1 3530 022 2 033 2 4280 036 2 038 2...

Page 16: ...hanges in design and construction at any time without notice thus the cover picture is not binding McQuay Italia S P A S S Nettunense km 12 300 00040 Cecchina Roma Italia Tel 06 937311 Fax 06 9374014...