Danfoss OP-MPHM007NFP00G User Manual

18 FRCC.ES.010.A4.03
Handbuch Reglerinstallation
Inbetriebnahme .............................................................................................................. 19
Elektrische Installation ................................................................................................................................................19
Displayanzeige (nach Reglerstart) ..........................................................................................................................19
Parametermenü ............................................................................................................................................................. 19
Schnellstart der Einheit/Kältemittelwechsel ......................................................................................................19
Pump-down-Funktion .................................................................................................................................................20
Tag-/Nachtfunktion ......................................................................................................................................................20
Instandhaltung und Wartung ........................................................................................ 20
Displayanzeige ..............................................................................................................................................................20
Betriebsparameter ........................................................................................................................................................20
Alarm- und Fehlermeldungen ..................................................................................................................................21
Reparatur ......................................................................................................................... 21
Reglerdefekt ....................................................................................................................................................................21
Zurücksetzen auf Werkseinstellungen .................................................................................................................. 21
Regleraustausch bei einer Einheit vor Ort ...........................................................................................................22
Regelung .......................................................................................................................... 22
Regelung des Verüssigungsdrucks ......................................................................................................................22
Regelung der Kurbelwannenheizung ...................................................................................................................22
Regelung der Lüfterdrehzahl ....................................................................................................................................22
Sicherheitsparameter „Niederdruck“ für R404A ................................................................................................23
Sicherheitsparameter „Hochdruck“ für R404A ..................................................................................................23
Inhalt

Danfoss OP-MPHM007NFP00G Specifications

General

Brand	Danfoss
Model	OP-MPHM007NFP00G
Category	Heat Pump
Language	English

Summary

Commissioning

Electrical installations

Arranging electrical connections as per the wiring diagram for the unit.

Main display (after controller start-up)

How the controller screen displays Evaporation and Condensing Temperatures.

Parameter Menu

Procedure to access and navigate the controller's parameter menu for settings.

Quick start of the unit / Refrigerant change

Steps for unit start-up and changing the refrigerant type in the controller.

Pump Down - Function

Activating the 'pump-down' limit using parameter c33 to avoid low pressure alarms.

Day/Night - Function

Using the Day/Night function to reduce noise by limiting fan speed at night.

Service and Maintenance

Main Display (Evaporating and Condensing Temperature, Setpoint Temperature Difference)

Controller displays temperatures and setpoint difference; how to modify.

Operating Parameters

How to display operation conditions via parameter menu selection 'U'.

Alarm and Error Messages

Alerts indicated by LED symbols on the controller screen for malfunctions.

Repair

Controller failure

How to run the unit in manual mode if the controller fails, following wiring diagrams.

Factory reset

Procedure to restore all factory parameters by holding buttons and turning power on.

Controller Replacement of a unit on site

Steps for removing and installing a new controller on the unit.

Control

Control of condensing pressure

Setpoint calculated from ambient temp + offset, controlled by fan speed.

Control of crankcase heater

Controller optimizes heater based on ambient temp and suction pressure via PWM.

Control of Fan Speed

Fan speed controlled by PI-control based on actual value and setpoint.

Safety Parameter "Low Pressure" for R404A

Safety Parameter "High Pressure" for R404A