Liebert MR1 - Manuals

Liebert MR1 • 3 Section 2: INSTALLATION Mounting The MR1 Mini-Remote is completely tested, then shipped from the factory disassembled for your convenience during installation. To begin flush-mount installation, please refer to Figure 2A. An optional 30-foot control cable can be supplied to allow the...

Electrical Connections The MR1 Mini-Remote requires a two-wire connection (field- supplied) to communicate with the Environmental unit under its control. The stranded twisted-pair connects to the MR1 interface board at TB2-11 (T+) and TB2-12 (T-). Refer to Table 1 below for the connections at the En...

Figure 2b. Display Panel Mounted Remotely from Electrical Box 6 • User Manual DISCONTINUED P R O D U C T

Section 3: HARDWARE CONFIGURATION 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. On/off button affects MR1 op...

Figure 3. Electrical Connections, Electric Box and Display 8 • User Manual DISCONTINUED P R O D U C T

Liebert MR1 • 9 Section 4: OPERATION LCD and Keypad When power is first applied, the MR1 performs self- initialization and then enters the normal display mode. The display alternates between showing the temperature and humidity readings, and cooling/heating, de/humidification, and econocycle operati...

button will turn on/off the unit being monitored and the MR1. With DIP switch #2 in the OFF position, pressing the ON/OFF button will turn toggle the on/off operation of the MR1 only. Setpoint Control There are two hidden buttons on the MR1 keypad. These buttons are not labeled on the display to pre...

Setpoint AM/AG SM L10 L00 MM2 SSC On/Off ✔ ** ✔ ** ✔ ✔ Temperature ✔ ✔ ✔ ✔ ✔ Temp Sensitivity ✔ ✔ ✔ ✔ ✔ Humidity ✔ ✔ ✔ ✔ ✔ Humidity Sensitivity ✔ ✔ ✔ ✔ ✔ High Temperature Alarm ✔ ✔ ✔ Low Temperature Alarm ✔ ✔ ✔ High Humidity Alarm ✔ ✔ ✔ Low Humidity Alarm ✔ ✔ ✔ Table 3: Setpoint Control by Microproc...

Alarm AM/AG SM L10 L00 MM2 SSC High Temperature ✔ ✔ ✔ ✔ ✔ ✔ Low Temperature ✔ ✔ ✔ ✔ ✔ ✔ High Humidity ✔ ✔ ✔ ✔ ✔ ✔ Low Humidity ✔ ✔ ✔ ✔ ✔ ✔ High Head Pressure 1 ✔ ✔ ✔ ✔ ✔ High Head Pressure 2 ✔ ✔ ✔ ✔ ✔ Loss of Airflow ✔ ✔ ✔ ✔ ✔ Liquid Detected ✔ ✔ ✔ ✔ ✔ Change Filters ✔ ✔ ✔ ✔ ✔ Humidifier Problem ✔ ✔...

Mini-Remote Environmental Monitor ■ ■ ■ ■ ■ ■ ■ ■ MR1 T HE C OMPANY B EHIND T HE P RODUCTS With more than 500,000 installations around the globe, Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a complete range of support and protection s...