Installation Guide

Installation Manual Bosch Climate 5000 Series Multi Zone Ductless Air Conditioner / Heat Pump | 13
Bosch Thermotechnology Corp. | 05.2019
Data subject to change
Connecting a 24k Btuh Indoor Unit
A 24K Btuh indoor unit can only be connected to an A system connection point.
If there are two 24K Btuh indoor units, they can be connected with the A and B
connection points. (See Fig. 11)
Connective pipe sizes
Indoor unit capacity (Btu/h) Liquid (in / mm) Gas (in / mm)
9k 1/4" / Φ6.35
3/8" / Φ9.52
12k / 18k 1/4" / Φ6.35 1/2" / Φ12.7
24k 3/8" / Φ9.52 5/8" / Φ15.9
Table 7
Multi-zone condensing section refrigerant line connection sizes
Type Model Name Model # Liquid Side (in / mm) Gas Side (in / mm)
Regular
System
BMS500-AAM018-1CSXRA 8733942703 2 X 1/4" / 2 X Φ6.35 2 X 3/8" / 2 X Φ9.52
BMS500-AAM027-1CSXRA 8733942704 3 X 1/4" / 3 X Φ6.35 3 X 3/8" / 3 X Φ9.52
BMS500-AAM036-1CSXRA 8733942705 4 X 1/4" / 4 X Φ6.35 4 X 3/8" / 4 X Φ9.52
BMS500-AAM048-1CSXRA 8733942706 5 X 1/4" / 5 X Φ6.35 3 x 3/8" + 2 x 1/2" / 3 x Φ9.52 + 2 x Φ12.7
Hyper
Heat
BMS500-AAM018-1CSXHB 8733953119 2 X 1/4" / 2 X Φ6.35 2 X 3/8" / 2 X Φ9.52
BMS500-AAM027-1CSXHB 8733953120 3 X 1/4" / 3 X Φ6.35 3 X 3/8" / 3 X Φ9.52
BMS500-AAM036-1CSXHB 8733953121 4 X 1/4" / 4 X Φ6.35 3 x 3/8" + 1 x 1/2" / 3 x Φ9.52 + 1 x Φ12.7
Table 8
Figure 11