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Danfoss Commercial Compressors

 

is a worldwide manufacturer of compressors and condensing units for refrigeration and HVAC applications. With a wide range of 
high quality and innovative products we help your company to find the best possible energy efficient solution that respects the 
environment and reduces total life cycle costs.

We have 40 years of experience within the development of hermetic compressors which has brought us amongst the global 
leaders in our business, and positioned us as distinct variable speed technology specialists. Today we operate from engineering 
and manufacturing facilities spanning across three continents.

Danfoss Inverter Scrolls

Danfoss Turbocor Compressors

Danfoss Scrolls

Danfoss Optyma Condensing Units

Danfoss Maneurop Reciprocating Compressors 

BC251686497767en-US0801

© Danfoss | DCS (CC) | 2019.11

Our products can be found in a variety of applications such as rooftops, chillers, residential air conditioners, 
heatpumps, coldrooms, supermarkets, milk tank cooling and industrial cooling processes.

Disclosure: This equipment is prohibited from use in California with any refrigerants on the “List of Prohibited 
Substances” for that specific end-use, in accordance with California Code of Regulations, title 17, section 95374. This 
disclosure statement has been reviewed and approved by Danfoss LLC and Danfoss LLC attests, under penalty of 
perjury, that these statements are true and accurate”. 

www.danfoss.us/aftermarket

Danfoss Light Commercial Refrigeration

Compressors

119-8385E

Summary of Contents for OP-HJZM

Page 1: ...Installation and maintenance condensing unit manual OP HJZM HNXM HRXM LNYM LRYM LJHM Manual http cc danfoss com...

Page 2: ...e of the condensing unit must be carried out by qualified personnel only Follow these instructions and best practices on refrigeration engineering during installation commissioning maintenance and ser...

Page 3: ...t or pallet jack for handling Use appropriate and safe lifting equipment Store and transport the unit in an upright position Store the unit between 30 F and 120 F Don t expose the packaging to rain or...

Page 4: ...erial Use clean and dehydrated system components The suction piping connected to the compressor must be flexible in 3 dimensions to dampen vibrations Furthermore piping has to be done in such a way th...

Page 5: ...applied to this product it causes transformation of characteristics or the destruction Operation will become unstable when using other than sine waves for the power supply In this case proper control...

Page 6: ...Such as snow or freezing Check if a line to line short circuit is detected at a connection point of the fan motor It is recommended to protect the circuit with a thermal relay or circuit protector No...

Page 7: ...intenance Switch off the system and isolate the main power supply Ensure that power supply cannot be switched on during installation All electrical components must be selected as per local standards a...

Page 8: ...rify that all electrical connections are properly fastened and in compliance with local regulations When a crankcase heater is required it must be energized at least 12 hours before initial start up a...

Page 9: ...ctions are still adequately fastened Keep the unit clean and verify the absence of rust and oxidation on the unit components tubes and electrical connections The condenser must be checked at least onc...

Page 10: ...47 4 16 5 7 8 1 2 HRXM0500 2 28 8 49 4 31 5 7 8 1 2 HRXM0600 2 28 8 49 4 31 5 7 8 1 2 HRXM0700 2 28 8 49 4 31 5 7 8 1 2 HRXM0750 2 39 1 61 2 31 5 1 1 8 5 8 HRXM1000 2 39 1 61 2 31 5 1 1 8 5 8 Unit Di...

Page 11: ...1 8 X 7 8 W D H 2X Knockout 7 8 Liquid Line C L C L Suction Line 2X Double Knockout 1 1 8 X 7 8 W H D 2X Knockout 7 8 C L Suction Line Liquid Line C L 2X Double Knockout 1 1 8 X 7 8 W D H 2X Knockout...

Page 12: ...BC251686497767en US0801 Electrical wiring diagrams Wiring Diagram 119 8312 Wiring Diagram 119 8313 Electrical Code N HJZM0150 HNXM0200 0400 HRXM0500 LJHM0150 0200 Electrical Code Q HNXM0200 0400 HRXM...

Page 13: ...51686497767en US0801 Electrical wiring diagrams X 4 2 1 N 3 N O LOAD N C LOAD Wiring Diagram 119 8315 Wiring Diagram 119 8493 Electrical Code Q HJZM0150 LJHM0150 0200 Electrical Code Q LNYM0400 0500 L...

Page 14: ...Manual 14 BC251686497767en US0801 Electrical wiring diagrams Wiring Diagram 119 8640 Wiring Diagram 119 8641 Electrical Code R HRZM0600 1000 Electrical Code R LRYM0600 0800...

Page 15: ...op the refrigerant flow through the evaporator 10 Suction pressure decreases and the compressor contactor opens when the pressure drops below the cut out setting on the low pressure control The compre...

Page 16: ...ensions Length Height in mm in mm HJXM0150 0200 LJHM0150 0300 26 660 19 480 HJXM0200 0300 29 740 22 550 LNYM0400 0500 HJXM0350 0400 31 780 27 700 HRXM0500 0700 LRYM0600 0800 46 1170 28 720 HRXM0750 10...

Page 17: ......

Page 18: ...erter Scrolls Danfoss Turbocor Compressors Danfoss Scrolls Danfoss Optyma Condensing Units Danfoss Maneurop Reciprocating Compressors BC251686497767en US0801 Danfoss DCS CC 2019 11 Our products can be...

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