Two-Port Heat Recovery Unit; Three-Port Heat Recovery Unit; Four-Port Heat Recovery Unit; Heat Recovery Unit Specifications - LG Multi IV Engineering Manual

GENERAL DATA
Figure 1: Two-Port Heat Recovery Unit.
Heat recovery units can only be used with LG heat recovery systems.
Table 21:
Model
Number of Ports
Max. Connectable No. of Indoor Units
Max. Connectable No. of Indoor Units on each port
Max. Port Capacity (each port)
Max. Unit Capacity (sum of ports)
Net Weight
Dimensions (W x H x D)
Casing
To Indoor Units
Connecting Pipes
To Outdoor
Units
Insulation Material
Minimum Circuit Amps (MCA)
Current
Maximum Fuse Amps (MFA)
Power Supply
Table 22: Heat Recovery Unit Electrical Data.
Unit Model No.
PRHR022A
PRHR032A
PRHR042A
30 | PRODUCT DATA
Figure 2: Three-Port Heat Recovery Unit.
Btu/h
Btu/h
lbs.
inches
Liquid Pipe (inches)
Vapor Pipe (inches)
Liquid (inches)
Low-pressure Vapor (inches)
High-pressure Vapor (inches)
V / Hz / Ph
208-230 / 60 / 1
208-230 / 60 / 1
208-230 / 60 / 1
©
Figure 3: Four-Port Heat Recovery Unit.
PRHR022A PRHR032A
2 3
16 24
8 8
54,000 54,000
192,000 192,000
40 45
17-7/8 x 8-5/8 x 18-15/16
Galvanized steel plate
3/8
5/8
3/8 1/2
7/8 1-1/8
3/4 7/8
Polyethylene
0.1 0.15
15
1Ø, 208-230V, 60Hz
Input (kW)
Cooling
0.026
0.033
0.040
PRHR042A
4
32
8
54,000
192,000
49
5/8
1-1/8
7/8
0.2
Heating
0.026
0.033
0.040