Multi F Engineering Manual

Table Of Contents

Figure 36: PMBD3620, PMBD3630, PMBD3640, PMBD3641 Refrigerant Flow Diagram.

MULTI F MAX BD UNIT

Refrigerant Flow Diagram

1. Flare connections for field piping installation.

2. Match the BD ports to the indoor unit and outdoor unit piping sizes. Use an adapter if the piping size does not match the piping size of the

connecting indoor unit.

3. EEV: Electronic Expansion Valve

4. PMBD3620 BD Unit supplied with "A, B".

PMBD3630 BD Unit supplied with "A, B, C".

PMBD3640 and PMBD3641 BD Units supplied with "A, B, C, D".

Main gas

piping

(

3/4)

Refrigerant flow

D Liquid (Ø1/4)

C Liquid (Ø1/4)

B Liquid (Ø1/4)

A Liquid (Ø1/4)

D Gas (Ø3/8)

*PMBD3641

D Gas: Ø1/2

C Gas (Ø3/8)

Cooling

Heating

Main liquid

piping

(

3/8)

Outdoor

Unit

Indoor

Units

EEV-C

EEV-B

EEV-A

EEV-D

B Gas (Ø3/8)

A Gas (Ø3/8)

Unit: inch

BD UNIT | 51

Branch Distribution (BD) Unit Data

'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ

MULTI

MAX

MULTI