Related Manuals for Danfoss Maneurop NTZ
Summary of Contents for Danfoss Maneurop NTZ
- Page 1 Application guidelines Maneurop® reciprocating compressors NTZ 50 - 60 Hz Group 2: R404A, R507A, R452A Group 1: R454C, R455A http://cc.danfoss.com...
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Page 3: Table Of Contents
Application Guidelines Content General Information ........4 System design recommendations ....21 Piping design ............21 Maneurop® reciprocating compressors ..5 Suction line .............. 21 Features ...............5 Discharge line ............21 Specifications .............6 Oil charge and oil separator ......22 Technical specifications and nominal ratings 6 Filter driers ............... -
Page 4: General Information
There is an added emphasis placed If you need any additional assistance, please on safety and reliability. Critical instructions are contact Danfoss Technichal Support. In any case, highlighted with the following icons: Danfoss manufacturing accepts no liability as a result of misuse or improper integration of the compressor unit. -
Page 5: Maneurop® Reciprocating Compressors
Application Guidelines Maneurop® reciprocating compressors Features The Maneurop® NTZ series from Danfoss A liquid injection system is not required. All Commercial Compressors is a range of hermetic components are of high quality and precision to reciprocating compressors for low evaporating assure a long product life. -
Page 6: Specifications
Application Guidelines Specifications Technical specifications and nominal ratings Displacement Nominal ratings* Swept Number 50 Hz 60 Hz Compressor 50 Hz 60 Hz volume charge weight model 2900 rpm 3500 rpm Cooling Cooling cm3/rev cylinders litre m3/hr capacity W capacity W NTZ048 10.1 1.15... -
Page 7: Nominal Performance Data For R404A
Application Guidelines Specifications Nominal performance data for R404A R404A Refrigeration 50 Hz, EN12900 ratings 50 Hz, EN12900 ratings To = -35°C, Tc = 40°C, SC = 0K, SH = 10K To = -35°C, Tc = 40°C, SC = 0K, RGT = 20°C Compressor Cooling Power... -
Page 8: Nominal Performance Data For R454C
Application Guidelines Specifications Nominal performance data for R454C 50 Hz, EN12900 ratings 60 Hz, EN12900 ratings To = -35°C, Tc = 40°C, SC = 0K, SH = 10K To = -35°C, Tc = 40°C, SC = 0K, SH = 10K Compressor Cooling Power... -
Page 9: Dimensions
Application Guidelines Dimensions 1 cylinder ø 224 Suction rotolock 1"1/4 Schrader 1/4" 353 (NTZ068-1) Discharge rotolock 1" Oil equalisation 3/8" PTC crankcase heater 33° 35° Threaded oil sight glass Silent block HM8-40 Suction 147 Discharge 142 17° Terminal box Spade connectors 1/4"... -
Page 10: Cylinders
Application Guidelines Dimensions 2 cylinders ø 288 Suction rotolock Schrader 1"3/4 1/4" Discharge rotolock 1"1/4 Oil equalisation 3/8" crankcase heater Threaded oil sight glass (1) NTZ096 - 108 (2) NTZ136-1 Silent block Suction 179 HM8-40 Discharge 176 Terminal box Terminal box Spade connectors 1/4"... -
Page 11: Cylinders
Application Guidelines Dimensions 4 cylinders Ø 352 Schrader 1/4 " Suction rotolock 1"3/4 Discharge rotolock 1"1/4 Oil equalisation Threaded oil 3/8" sight glass Mounting hole for PTC crankcase heater Silent block HM12-50 15° 15° 155° 15° Terminal box IP rating: 54 (with cable gland) Rotolock connections size Pipe sizing Rotolock valve... -
Page 12: Electrical Connections And Wiring
Application Guidelines Electrical connections and wiring Voltage application range Motor voltage code Nominal voltage Voltage application range 208-230V/1/60Hz 187–253V 200-230V/3/60Hz 180–253V 380-400V/3/50Hz 340–440V (50Hz) 460V/3/60Hz 414–506V (60Hz) 220-240V/1/50Hz 198–264V 380V/3/60Hz* 342–418V * Some models are approved for 380-400V/60Hz. Please check data sheet. Single phase electrical LRA - Locked Rotor MCC - Maximum... -
Page 13: Single Phase Psc Wiring With Trickle Circuit
Application Guidelines Electrical connections and wiring Single phase PSC wiring with trickle circuit Motor protector A & C Run capacitors Common Start winding (auxiliary) Run winding (main) Single phase CSR wiring with trickle circuit Motor protector A & C Run capacitors Start capacitor Common Start winding (auxiliary) -
Page 14: Three Phase Electrical Characteristics
Application Guidelines Electrical connections and wiring Three phase electrical characteristics Winding resistance Compressor (Locked Rotor Amp) A (Maximum Continuous Current) A (between phases +/- 7% at 25°C) Ohm model NTZ048 10.1 2.80 11.55 NTZ068 48.5 14.8 1.58 6.67 9.70 NTZ096 20.4 10.1 1.20... -
Page 15: Wiring Diagram Without Pump-Down Cycle
Application Guidelines Electrical connections and wiring Wiring diagram without CONTROL CIRCUIT pump-down cycle 180 s Control device Optional short cycle timer (3 min) 180 s Control relay Compressor contactor Safety lock out relay H.P. switch Fused disconnect Fuses Compressor motor 85 52 019 - A Discharge gas thermostat IP rating... - Page 16 Application Guidelines Electrical connections and wiring Soft starters Soft starters are designed to reduce the starting In case of use with R454C or R455A make sure current of 3-phase AC motors that the softstarter selected is compatible with A2L refrigerants. Soft starters can be used with NTZ compressor but, in order to ensure proper lubrication of The number of starts should be limited to 6 per...
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Page 17: Approval And Certifications
* According to the PED classification Group1 contains hazardous fluids e.g. flammable, while Group 2 all other fluids Low voltage directive Products NTZ 048 to 271 2014/35/EU Declaration of conformity Contact Danfoss Machinery directive Products NTZ 048 to 271 2014/30/EU Manufacturer's declaration of incorporation... -
Page 18: Operating Conditions
It must therefore be charged R404A and R507A are especially suitable for low in the liquid phase. For most other aspects and medium temperature applications. Danfoss however, this small glide may be neglected. recommends the use of these refrigerants with R507A is an azeotropic mixture without NTZ compressors. -
Page 19: R454C
Application Guidelines Operating conditions R454C R454C is a HFO Blend, with similar R454C is classified A2L with low flammability thermodynamic properties to R404A. R454C is properties. Please refer to European regulation a zeotropic refrigerant with a temperature glide and directives about the use of refrigerant of of about 6K and must therefore be charged in the A2L safety group (EN378, EN60335). -
Page 20: Operating Conditions
The most effective protection against too Discharge line high discharge gas temperature is to mount a discharge gas thermostat. An accessory kit Bracket is available from Danfoss which includes the Insulation thermostat, mounting bracket and insulation. Operating limits High pressure... -
Page 21: System Design Recommendations
Note that the suction rotolock valves, which can be ordered from Danfoss as accessories, are designed for average pipe sizes, selected for systems running at nominal conditions. -
Page 22: Oil Charge And Oil Separator
(water content For servicing of existing installations where acid capacity), the system refrigerating capacity and formation is present the Danfoss DCL solid core the system refrigerant charge. Suction pressure control An MOP-type expansion valve or suction When compressors are mounted onto a rack pressure regulator (i.e. -
Page 23: Cycle Rate Limit
Application Guidelines System design recommendations Cycle rate limit No more than 12 starts per hour (6 when a start-up as well as proper oil return from the soft start accessory is used) are allowed. A higher system to the compressor. number would reduce the service life of the A 5-minute delay between two successive motor-compressor unit. -
Page 24: Crankcase Heater
As a general rule, Danfoss operation. This device also helps protect against Commercial Compressors recommends to off-cycle migration by providing additional... -
Page 25: Sound And Vibration Management
Application Guidelines Sound and vibration management Sound Compressors in operation are one of the sources an acoustic hood accessory. Because Maneurop® of sound and vibration in a refrigeration system. NTZ compressors are 100% suction gas cooled Both phenomena are closely related. and require no external cooling they can be insulated or enclosed in a sound proofing Sound produced by a compressor is transmitted... -
Page 26: Installation And Service
Application Guidelines Installation and service System cleanliness System contamination is one of the main pipes during brazing to prevent oxidation. If factors that affects equipment reliability and flux is used, take every precaution to prevent compressor service life. Therefore it is important the leakage of flux into the piping. -
Page 27: Compressor Connection To The System
Application Guidelines Installation and service Compressor connection New compressors have a protective nitrogen possible, the sleeves or valves may be brazed to to the system holding charge. the pipes when mounted on the compressor. In this situation nitrogen or CO must be purged Only remove the suction and discharge through the compressor via the schrader valve... -
Page 28: Leak Detection
Application Guidelines Installation and service Leak detection Whenever possible the compressor must be kept air or acetylene as these gasses can form an isolated from the system during leak detection inflammable mixture with the compressor oil. by closing the suction and discharge valves. Use Never use CFC or HCFC refrigerants for leak a mixture of nitrogen and the final refrigerant detection of HFC systems. -
Page 29: Oil Charge And Oil Level
In installations with line runs exceeding 20 m or multiple condenser installations an oil separator with many oil traps or an oil separator, additional is recommended. Use Danfoss 175PZ lubrificant oil may be required. Normally the quantity of oil for systems with NTZ compressors. -
Page 30: Ordering Information And Packaging
Application Guidelines Ordering information and packaging Code numbers NTZ compressors in single pack* (for ordering) Motor voltage code Compressor model 460/3/60 208-230/1/60 200-230/3/60 230/1/50 380/3/60 400/3/50 NTZ048 120F0293 120F0279 120F0226 120F0228 120F0302 NTZ068 120F0294 120F0280 120F0230 120F0232 120F0303 NTZ096 120F0295 120F0281 120F0234 NTZ108... - Page 31 Application Guidelines Accessories Rotolock service valves and valve sets (without gasket) Pack Type Code n° Description Application Packaging size 8168027 Rotolock valve, V01 (1" Rotolock, 3/8" ODF) Models with 1" rotolock connection Multipack 8168031 Rotolock valve, V06 (1" Rotolock, 1/2" ODF) Models with 1"...
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Page 32: Accessories
Application Guidelines Accessories Belt heaters Pack Type Code n° Description Application Packaging size 7773106 Belt type crankcase heater, 54 W, 230 V, CE mark, UL Multipack NTZ048-068 7773013 Belt type crankcase heater, 54 W, 400 V, UL Multipack 7773109 Belt type crankcase heater, 65 W, 110 V, CE mark, UL Multipack 7973001 Belt type crankcase heater, 65 W, 110 V, CE mark, UL... - Page 33 Application Guidelines Accessories Acoustic hoods Pack Type Code n° Description Application Packaging size 1 cyl 120Z0575 Acoustic hood for 1 cyl NTZ048-068 Single pack 2 cyl 120Z0576 Acoustic hood for 2 cyl NTZ096-136 Single pack 4 cyl 120Z0577 Acoustic hood for 4 cyl NTZ215-271 Single pack Mounting kits (Grommets, sleeves, bolts, washers, Ebox cover, Solder sleeves and gaskets)
- Page 34 Application Guidelines Updates Current version Previous version • reliability risk icons are added • Page 4: and then in the whole document - The safety and • Page 8: Nominal performance data for R455A is added reliability risk icons are added •...
- Page 36 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. http://cc.danfoss.com Danfoss Commercial Compressors, BP 331, 01603 Trévoux Cedex, France | +334 74 00 28 29 AB245486497018en-000601 © Danfoss | DCS (CC) | 2021.06...