Instruction/ maintenance manual of the product MR1 Liebert
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S I T E M O N I T O R I N G ■ ■ ■ ■ ■ ■ ■ ■ MR1 Mini-Remote Environmental Monitor U SER M ANUAL.
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TA BLE OF CONTENTS Section 1: INTRODUCTION .......................................................................................... 1 Specific ations ...................................................................................................
Figure 1. Typical System Configuration.
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Section 1: INTRODUCTION The Liebert MR1 Mini-Rem ote m onitors the operating status and controls the operation of your Liebert Env ironmental unit. It serv es as a remote user interface, supplem enting the unit- front controls.
NOTE This equipment has been tested and found to comp ly with the lim its for a C lass A dig ital device, pursuant to part 15 of the FCC rules. These limits are designed to prov ide reasonable protection against harm ful interference when the equipment is operated in a com mercial environm ent.
Liebert MR1 • 3 Section 2: INSTA LLA TION Mounting The MR1 Mini-Rem ote is com pletely tested, then shipped from the factory disassem bled for your conv enience during installation.
Figure 2a. Flush-Mount Installation 4 • User Manual.
Electrical Connections The MR1 Mini-Rem ote requires a two- wire connection (field- supplied) to comm unicate with the Environm ental unit under its control. The stranded twisted-pair connects to the MR 1 interface board at TB2-11 (T+) and TB2- 12 (T-).
Figure 2b. Display Panel Mounted Remotely from Electrical Box 6 • User Manual.
Section 3: HA RDWA RE CONFIGURA TION DIP Switch Settings The following user selectable operations are set by DIP SW1 on the display panel circuit board: Refer to Table 2 and Figure 3. Position OFF ON 1 Audible beeper enabled Audible beeper disabled 2 Remote on/off disabled.
Figure 3. Electrical Connecti ons, Electric Box and Display 8 • User Manual.
Liebert MR1 • 9 Section 4: OPERA TION LCD and Keypad When power is first applied, the MR1 performs self- initialization and then enters the norm al display m ode. The display alternates between show ing the tem perature and humidity readings, and cooling/heating , de/humidification, and econocycle operating status.
button will turn on/off the unit being monitored and the MR 1. With DIP switch #2 in the OFF position, pressing the ON/OFF button will turn togg le the on/off operation of the MR1 only.
Setpoint AM/AG SM L10 L00 MM2 SSC On/Off ✔ ** ✔ ** ✔ ✔ Temperature ✔ ✔ ✔ ✔ ✔ Temp Sensitivity ✔ ✔ ✔ ✔ ✔ Hum idity ✔ ✔ ✔ ✔ ✔ Hum idity Sensitiv ity ✔ ✔ ✔ ✔.
Alarm AM/AG SM L10 L00 MM2 SSC High Tem perature ✔ ✔ ✔ ✔ ✔ ✔ Low Temperature ✔ ✔ ✔ ✔ ✔ ✔ High Humidity ✔ ✔ ✔ ✔ ✔ ✔ Low Humidity ✔ ✔ ✔ ✔ ✔ ✔ High Head Pr.
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Mini-Remote Environmental Monitor ■ ■ ■ ■ ■ ■ ■ ■ MR1 T HE C OM PANY B EHIND T HE P RODUCT S W ith more than 500,000 installations around the globe, Liebert is the world leader in computer protection systems.
An important point after buying a device Liebert MR1 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Liebert MR1 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Liebert MR1 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Liebert MR1 you will learn all the available features of the product, as well as information on its operation. The information that you get Liebert MR1 will certainly help you make a decision on the purchase.
If you already are a holder of Liebert MR1, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Liebert MR1.
However, one of the most important roles played by the user manual is to help in solving problems with Liebert MR1. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Liebert MR1 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
