The accessory numbers are listed in Table 4.1.
(3)
Piping
Connection
Perform
the
piping
connection
according
to
Table
5.1.
Unit:
mm
(inch)
Connected
Indoor
Unit
Capacity:
Q
(kW)
HCHS-N06X
Q
≤
6.3
6.3
<
Q
<
16.0
Q
=
16.0
Switch Box
(Upper Surface)
(2) Accessory Pipe
(3) Accessory Pipe
(Cut the expanded part of the pipe end.)
(2) Accessory Pipe
(1) Reducer
Gas Pipe
(Field-Supplied)
(
φ
12.7(1/2))
Low Pressure Gas Pipe
(Field-Supplied) (
φ
15.88(5/8))
High/Low Pressure Gas Pipe
(Field-Supplied) (
φ
12.7(1/2))
*1
Switch Box
(Upper Surface)
(3) Accessory Pipe
(2) Accessory Pipe
(1) Reducer
Low Pressure Gas Pipe
(Field-Supplied) (
φ
15.88(5/8))
High/Low Pressure Gas Pipe
(Field-Supplied) (
φ
12.7(1/2))
Gas Pipe
(Field-Supplied)
(
φ
15.88(5/8))
Field Flaring Work
*2
(Cut the expanded part of the pipe end.)
Switch Box
(Upper Surface)
(3) Accessory Pipe
Low Pressure Gas Pipe
(Field-Supplied) (
φ
19.05(3/4))
High/Low Pressure Gas Pipe
(Field-Supplied) (
φ
15.88(5/8))
Gas Pipe
(Field-Supplied)
(
φ
15.88(5/8))
Field Flaring Work
*2
Field Flaring Work
*2
*1:
Refer
to
the
installation
and
maintenance
manual
for
the
outdoor
unit
for
the
following
piping
size.
•
Upstream piping of
Switch Box
•
Downstream piping of
Switch Box
when the branch is located downstream of
Switch Box.
*2:
Refer
to
Section
5.1
for
the
flarin
g
work.
NOTE:
Unit:
mm
(inch)
Connected
Indoor
Unit
Capacity:
Q
(kW)
HCHS-N10X
16.0
<
Q
≤
25.0
25.0
<
Q
≤
28.0
Switch Box
(Upper Surface)
(2) Accessory Pipe
(2) Accessory Pipe
High/Low Pressure Gas Pipe
(Field-Supplied) (
φ
15.88(5/8))
Gas Pipe
(Field-Supplied)
(
φ
19.05(3/4))
Field Flaring Work
Low Pressure Gas Pipe
(Field-Supplied) (
φ
19.05(3/4))
*2
Switch Box
(Upper Surface)
(2) Accessory Pipe
(4) Accessory Pipe
(2) Accessory Pipe
Low Pressure Gas Pipe
(Field-Supplied) (
φ
22.2(7/8))
High/Low Pressure Gas Pipe
(Field-Supplied) (
φ
19.05(3/4))
Gas Pipe
(Field-Supplied)
(
φ
22.2(7/8))
13