MGE - MHP Owner’s Manual – Installation and Operating Instructions Please read this manual carefully before installation and use. Index Installation Instructions 1 Wiring Connections 2 Hardware Jumpers 3 Operating Manual 4 SET ON ALARM ON/OFF SET TEMP ALARM LIMITS PROG CLOCK SELECT MODE AUTO RESET FAN mge-mhp-rheem-new2-new Rev.
1. Installation Instructions It is recommended to mount the thermostat or return air sensors between 1.5 & 1.8 meters from the floor where possible. Separate the base from the cover by pressing the tongue (pic.1). Spring tongue Gently disconnect the cover from the base with quick connector (pic.2) Line the back panel up against the wall or flat surface on which it is to be mounted and drill the appropriate fixing holes (pic.3). Spring tongue Pic.1 Quick connector Insert screws so they extend approx.
Fault IN (24VAC) Heat element 3 W2 W3 HU G1 G2 FD AL Not in use Heat element 2 W1 B/O Alarm (Dry contact normally open) Heat element 1 Y2 Not in use Compressor 2 Y1 Fan Compressor 1 2. Wiring Connections AL AUX Rc Rh AB Return air sensor (T1) T1 C T1 14 Outdoor Temp.
3. Hardware jumpers 3.1 The Jumpers are located on the back of the front panel (Inside the thermostat) as shown in the drawing. Table 3.1 – Jumper selection Hardware jumpers JP3-JP7 Screws to hold PCB to plastic Jumper Short When the black JP1 to select cover is placed on internal or the 2 legs. external Jumper Open temperature When the 2 legs sensor with 2 of the Jumper are positions A and B NOT SHORTED Jumper JP1 JP3 JP4 JP5 JP6 JP7 Function Position Internal Sensor Control Pos.
4. Operating Manual 4.1 Thermostat display In normal display mode, the LCD alternates between real time clock and set/room temperatures. SET CLOCK Hours TEMP Settemperature Minutes Room temperature 4.2 On/Off • Press the button to turn the thermostat ON. When on – the “SYSTEM” LED will turn on. button to turn the thermostat OFF. • Press and hold the 4.3 Selecting modes • Press the button to switch between the four modes: 1. Fan only - When ventilation only needed. 2. Cooling 1. Fan 3.
4.5 Auto fan • Press the button to switch between “fan on” and “auto fan” modes. In “auto fan” mode – the fan will work only when there is demand for cooling or heating. AUTO FAN 4.6 Real time clock and day Adjust the hours • Press the button - the hours will flash. • Adjust the hours using the button. Adjust the minutes • Press the button again – the minutes will flash. • Adjust the minutes using the button. Set the day • Press the button again – the days will flash.
4.7 Weekly Program The thermostat can be activated and deactivated using a weekly program. Different programs can be set for the weekdays (Monday to Friday), Saturday and Sunday (all weekdays with the same program). st st Two different programs can be set for each day (1 start time, 1 stop time, 2 nd nd start time, 2 stop time). The following program chart can assist you during the program settings.
Program display Program layout Press to start PROG Start time (hours) Program 1 Monday-Friday MON TUE WED THU FRI START Stop time (hours) Program 1 Monday-Friday Start time (minutes) Program 1 Monday-Friday PROGRAM 1 PROG MON TUE WED THU FRI START PROGRAM 1 PROG MON TUE WED THU FRI PROGRAM STOP 1 Stop time (minutes) Program 1 Monday-Friday PROG MON TUE WED THU FRI PROGRAM STOP 1 PROG Repeat these steps for the other programs Remarks Every program must have a start time and stop
4.8 Technician Settings • Press the button – “C50” will appear on the display. • Change the number to “55” using the buttons. High temperature limit • Press the button again – “HL” and the high temperature limit will appear on the display. o • Adjust the high temperature limit using the buttons (range: 4-39 C, do not set the high o temperature limit higher than 31 C where cooling is used).
High temperature alarm • Press the button again – “HL” and the high temperature alarm will appear on the display. • Adjust the high temperature limit using the o buttons (range: 4-46 C). Note: When the alarm activates, the AL,AL outputs will activate and the ALARM red LED will flash. Low temperature alarm • Press the button again – “LA” and the low temperature alarm will appear on the display. o buttons (range: 2-44 C).
Contacts In the unlikely event of a problem with this Rheem controller you should contact the installing contractor. Please write their details below: Importer The exclusive importer of Rheem Air Conditioners and Heat Pumps for the UK is Medal Aircon Accessories Ltd and their email address is www.medalaircon.co.uk . They may be contacted on 01743 466333 or by fax on 01743 466334. Alternatively email them at sales@medalaircon.co.
