9
1.
GENERAL
This booklet briefly outlines where and how to install the
air conditioning system. Please read over the entire set of
instructions for the indoor and outdoor units and make sure all
accessory parts listed are with the system before beginning.
1-1. Tools Required for Installation (not supplied)
1. Flathead
screwdriver
2.
Phillips head screwdriver
+NIFEORWIRESTRIPPER
4. Tape
measure
5. Carpenter’s
level
6.
Sabre saw or keyhole saw
(ACKSAW
8. Core
bits
(AMMER
$RILL
11. Tube
cutter
12.
Tube flaring tool
13. Torque
wrench
14. Adjustable
wrench
15.
Reamer (for deburring)
1-2. Accessories Supplied with Outdoor Unit
P
a
rt
Name
Figure
Q’ty
Remarks
Oper
ating
Instr
uctions
1
Installation
Instr
uctions
1
Included this
instr
uctions
1-3. Type of Copper Tube and Insulation Material
If you wish to purchase these materials separately from a local
source, you will need:
$EOXIDIZEDANNEALEDCOPPERTUBEFORREFRIGERANTTUBING
2.
Foamed polyethylene insulation for copper tubes as
required to precise length of tubing. Wall thickness of the
insulation should be not less than 8 mm.
3.
Use insulated copper wire for field wiring. Wire size varies
with the total length of wiring. See the section
h%,%#42)#!,7)2).'vFORDETAILS
CA
UTION
Chec
k local electrical codes and regulations bef
ore
obtaining wire
. Also,
c
hec
k an
y specified instructions or
limitations.
1-4. Additional Materials Required for Installation
1.
Refrigeration (armored) tape
2.
Insulated staples or clamps for connecting wire (See your
local codes.)
3. Putty
4.
Refrigeration tubing lubricant
5.
Clamps or saddles to secure refrigerant tubing
6.
Scale for weighing
T
ubing Data f
or Models
Models
Tubing Data
U-36PE2E5A
U-50PE2E5A
U-60PE2E5A
U-60PEY2E5
U-71PEY2E5
Tubing size outer diameter
,IQUIDTUBE
mm (in.)
6.35 (1/4)
9.52 (3/8)
Gas tube
mm (in.)
12.7 (1/2)
15.88 (5/8)
,IMITOFTUBINGLENGTH
(m)
40
40
,IMITOFELEVATIONDIFFERENCE
between the 2 units
Outdoor unit is placed higher
(m)
30
30
Outdoor unit is placed lower
(m)
15
15
Max. allowable tubing length at shipment
(m)
3 – 30
3 – 30
Required additional refrigerant
(
g
/m)
20
40
Refrigerant charged at shipment
(k
g
)
1.40
1.95
1-5. Tubing Size
●
Refrigerant tubing between the indoor and outdoor units should be kept as short as possible.
●
The lengths of the refrigerant tubes between the indoor and outdoor units are limited by the elevation difference between the
2 units.
$URINGTUBINGWORKTRYTOMAKEBOTHTHETUBINGLENGTH, AND
THEDIFFERENCEINELEVATION( ASSHORTASPOSSIBLE
Outdoor unit type
U-36PE2E5A
U-50PE2E5A
U-60PE2E5A
U-60PEY2E5
U-71PEY2E5
Maximum allowable tubing length
40 m
40 m
Charge-less tubing length
(actual length)
3 – 30 m
3
– 30 m
Additional charge per 1 m
20
g
40
g
H1
Single
-AINTUBING,
10
2.
SELECTING
THE INST
ALLA
TION SITE
2-1. Outdoor Unit
A
V
OID:
●
heat sources and exhaust fans, etc.
●
damp, humid or uneven locations.
DO:
●
choose a place as cool as possible.
●
choose a place that is well ventilated and outside air temperature does not
exceed maximum 46°C constantly.
●
allow enough room around the unit for air intake/exhaust and possible
maintenance.
●
use lug bolts or equal to bolt down unit, reducing vibration and noise.
●
If cooling operation is to be used when the outdoor air temperature is –5°C or below, install a duct on the outdoor unit.
Installation space for outdoor unit
Install the outdoor unit with a sufficient space around the outdoor unit for operation and maintenance.
(A)
When an obstruction is present on the air inlet side
●
When the upward area is open
(1)
One outdoor unit installed individually
Obstruction only on air inlet side
Obstruction on both sides
a
a
50 mm or more
a
c
b
a
50 mm or more
b
50 mm or more
c
250 mm or more
(2)
Two or more outdoor units installed side by side
Obstructions on both sides
a
b
c
d
a
200 mm or more
b
150 mm or more
c
250 mm or more
d
250 mm or more
●
W
HENANOBSTRUCTIONISPRESENTALSOINTHEUPWARDAREA$ONOTU
SETHEAIRDISCHARGECHAMBER
(1)
One outdoor unit installed individually
Obstruction only on air inlet side
Obstruction also on the air inlet side and both sides
a
b
c
a
50 mm or more
b
500 mm or less
c
300 mm or more
a
b
c
e
d
a
50 mm or more
b
50 mm or more
c
250 mm or more
d
500 mm or less
e
1,000 mm or more
(2)
Two or more outdoor units installed side by side
Obstruction also on the air inlet side and both sides
a
b
c
d
f
e
a
400 mm or more
b
1,000 mm or more
c
250 mm or more
d
250 mm or more
e
500 mm or less
f
1,000 mm or more
Exhaust fan
(EATSOURCE
Outdoor unit
(OTAIR
7
ENGLISH
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2016/12/1 9:55:10
