Supplementary Information - Mitsubishi Electric PAC-IF061B-E Installation And Operation Manual

10. Supplementary information

10.1 Refrigerant collecting (pumpdown) for split model systems only
Refer to "Refrigerant collection" in the outdoor unit installation manual or service manual.
10.2 Back-up operation of boiler
Heating operation is backed up by boiler.
For more details, refer to the installation manual of PAC-TH011HT-E.
<Installation & System set up>
1. Set Dip-SW 1-1 to ON "With boiler" and SW2-6 to ON "With Mixing tank".
2. Install the thermistors THWB1 (Flow temp.) and THWB2 (return temp.) *1 on the boiler circuit.
3. Connect the output wire (OUT10: Boiler operation) to the signal input (room thermostat input) on the boiler. *2
4. Install one of the following room temp. thermostats. *3
Wireless remote controller (option)
Room temp. thermostat (local supply)
Main remote controller (remote position)
*1 The boiler temp. thermistor is an optional part.
*2 OUT10 has no voltage across it.
*3 Boiler heating is controlled on/off by the room temp. thermostat.
<Remote controller settings>
1. Go to Service menu > Heat source setting and choose "Boiler" or "Hybrid". *4
2. Go to Service menu > Operation settings > Boiler settings to make detailed settings for "Hybrid" above .
*4 The "Hybrid" automatically switches heat sources between Heat pump (and Electric heater) and boiler.
Product fiche of temperature control
(a) Supplier's name: MITSUBISHI ELECTRIC CORPORATION
(b) Supplier's model identifier: PAR-WT50R-E and PAR-WT51R-E
(c) The class of the temperature control:
(d) The contribution of the temperature control to seasonal space heating energy efficiency: 4%
66