Bosch Climate 5000 AA Series Installation Manual page 11

Installation Manual
Drain joint installation
Before bolting the outdoor unit in place, you must install the drain joint at the bottom
of the unit. (See Fig. 10)
1. Fit the rubber seal on the end of the drain joint where it will connect to the
outdoor unit.
2. Insert the drain joint into the hole in the base pan.
3. Rotate the drain joint 90° until it clicks in place and faces the front of the unit.
4. Connect a drain hose extension (not included) to the drain joint to redirect
water from the unit during heating mode.
Make sure the water drains to a safe location where it will not cause water
damage or a slipping hazard.
Seal
Drain joint
( ) A
Figure 10
Drilling a hole in the wall
You must drill a hole in the wall for the refrigerant piping, and signal cable that will
connect the indoor and outdoor units.
1. Determine the location of the wall hole based on the location of the outdoor
unit.
2. Using a 65-mm (2.5") core drill, drill a hole in the wall.
When drilling the wall hole, make sure to avoid wires, plumbing, and other
sensitive components.
3. Place the protective wall cuff in the hole. This protects the edges of the hole
and helps seal it when you fi nish the installation process.
Bosch Thermotechnology Corp. | 01.2017
Bosch Climate 5000 AA Series Inverter Multi Split-Type Ductless Air Conditioner / Heat Pump | 11
Base pan hole of
outdoor unit
Seal
( ) B
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)
9K
12K/18K
24K
Table 6
Multi-zone condensing section refrigerant line connection sizes
A
Model (liq /gas)
(inches)
BMS500-AAM018- Φ 1/4" /
1CSXXA 3/8"
BMS500-AAM027- Φ 1/4" /
1CSXXA 3/8"
BMS500-AAM036- Φ 1/4" /
1CSXXA 3/8"
BMS500-AAM048- Φ 1/4" /
1CSXXA 3/8"
Table 7
Figure 11
Liquid Gas
1/4" 3/8"
1/4" 1/2"
3/8" 5/8"
B C D
(liq /gas) (liq /gas) (liq /gas) (liq /gas)
(inches) (inches) (inches) (inches)
Φ 1/4" /
N/A N/A
3/8"
Φ 1/4" / Φ 1/4" /
N/A
3/8" 3/8"
Φ 1/4" / Φ 1/4" / Φ 1/4" /
3/8" 3/8" 1/2"
Φ 1/4" / Φ 1/4" / Φ 1/4" / Φ 1/4" /
3/8" 3/8" 1/2"
Data subject to change
E
N/A
N/A
N/A
1/2"