Installation manual
3
RMXS112~160D7V3B
Super Multi Plus System air conditioner
4PW19516-1B
2.2.
Combination
The indoor units can be installed in the following range.
■
Always use appropriate indoor units compatible with R-410A.
To learn which models of indoor units are compatible with
R-410A, refer to the product catalogs.
■
Total capacity/quantity of indoor units
2.3.
Standard supplied accessories
Location of accessories: refer to
2.4.
Optional accessories
To install the above outdoor units, the following optional parts are
also required.
■
Refrigerant branching kit (for R-410A only: Always use an
appropriate kit dedicated for your system.)
2.5.
Technical and electrical specifications
Refer to the Engineering Data Book for the complete list of
specifications.
3.
B
EFORE
INSTALLATION
3.1.
Precautions for R-410A
■
The refrigerant requires strict cautions for keeping the system
clean, dry and tight.
-
Clean and dry
Foreign materials (including mineral oils or moisture) should be
prevented from getting mixed into the system.
-
Tight
Read
"8. Precautions on refrigerant piping" on page 6
and follow these procedures correctly.
■
Since R-410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state. (If the refrigerant
is in state of gas, its composition changes and the system will
not work properly).
■
The connected indoor units must be indoor units designed
exclusively for R-410A.
3.2.
Installation
■
For installation of the indoor unit(s) and BP unit(s), refer to the
indoor unit and BP unit's installation manual.
■
Never operate the air conditioner with the discharge pipe
thermister (R3T), suction pipe thermister (R2T) and pressure
sensors (S1NPH, S1NPL) removed. Such operation may burn
out the compressor.
■
Be sure to confirm the model name and the serial no. of the
outer (front) plates when attaching/detaching the plates to avoid
mistakes.
■
When closing the service panels, take care that the tightening
torque does not exceed 4.1 N•m.
3.3.
Handling
As shown in the figure, bring the unit slowly by grabbing the left and
right grips.
Place your hands on the corner instead of holding the suction inlet in
the side of the casing, otherwise the casing could be deformed.
4.
S
ELECTING
INSTALLATION
SITE
This is a class A product. In a domestic environment this product may
cause radio interference in which case the user may be required to
take adequate measures.
1
Select an installation site where the following conditions are
satisfied and that meets with your customer's approval.
-
Places which are well-ventilated.
-
Places where the unit does not bother next-door neighbours.
-
Safe places which can withstand the unit's weight and
vibration and where the unit can be installed level.
-
Places where there is no possibility of flammable gas or
product leak.
-
Places where servicing space can be well ensured.
Outdoor unit
Total capacity of
indoor units
Total quantity of
indoor units
RMXS112
55~145.5
6
RMXS140
70~182
8
RMXS160
80~208
9
Gas line piping (1) + copper gasket
1
Gas line piping (2)
1
Gas line piping (3)
1
Installation manual
1
Drain socket
1
Drain cap
2
Drain receiver
3
Insulation tape
1
1
Accessories
Refnet joint
KHRQ22M20T
+
Since design pressure is 4.0 MPa or 40 bar, pipes of larger
wall thickness may be required. Refer to paragraph
"7.1. Selection of piping material" on page 6
Take care not to let hands or objects come in contact with
rear fins.
