Installation - Fujitsu KGT Series Installation Manual

When an obstruction in the upper space (Unit : mm)
(1) Obstacles at rear and above
Max. 200
600 or more
100 or more
4.3.2. Multiple outdoor unit installation
• Provide at least 250 mm of space between the outdoor units if multiple units are
installed.
• When routing the piping from the side of an outdoor unit, provide space for the piping.
• No more than 3 units must be installed side by side.
When 3 units or more are arranged in a line, provide the space as shown in the
following example when an obstruction in the upper space.
When the upper space is open (Unit : mm)
(1) Obstacles at rear only
250 or more
200 or more
(3) Obstacles at front and rear
When an obstruction in the upper space (Unit : mm)
Obstacles at rear and above
Max. 300
250 or more
1,500 or more
250 or more
4.3.3. Outdoor units installation multi-row (Unit : mm)
(1) Single parallel unit arrangement
500 or more
(2) Obstacles at rear, sides, and above
Max. 200
600 or
more
100 or more
100 or more
250 or more
(2) Obstacles at front only
1,000 or more
200 or more
1,000 or more
1,500 or more
200 or more
100 or more
1,000 or more
200 or more
(2) Multiple parallel unit arrangement
200 or more
250 or more
1,000 or more
NOTES:
• If the space is larger than stated above, the condition will be the same as when there
is no obstacle.
• When installing the outdoor unit, be sure to open the front and left side to obtain
better operation effi ciency.

4.4. Installation

• Install 4 anchor bolts at the locations indicated with arrows in the fi gure.
• To reduce vibration, do not install the unit directly on the ground. Install it on a secure
base (such as concrete blocks).
• The foundation shall support the legs of the unit and have a width of 50 mm or more.
• Depending on the installation conditions, the outdoor unit may spread its vibration
during operation, which may cause noise and vibration. Therefore, attach damping
materials (such as damping pads) to the outdoor unit during installation.
• Install the foundation, making sure that there is enough space for installing the
connection pipes.
• Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially
available M10 bolts, nuts, and washers.)
• The bolts should protrude 20 mm. (Refer to the fi gure.)
• If overturning prevention is required, purchase the necessary commercially available
items.
(Unit : mm)
580
Do not install the outdoor unit in two-stage where the drain water could freeze. Otherwise
the drainage from the upper unit may form ice and cause a malfunction of the lower unit.
When the outdoor temperature is 0 °C or less, do not use the accessory drain pipe.
If the drain pipe is used, the drain water in the pipe may freeze in extremely cold climate.
If the unit is installed in a region that is exposed to
high winds, freezing conditions, freezing rain, snow
fall or heavy snow accumulation, take appropriate
measures to protect it from those elements.
To ensure stable operation, the outdoor unit must be
installed on a raised stand or rack, at or above the
anticipated snow depth for the region.
The installation of snow hoods and drift prevention
fencing is recommended when blowing and drifting
50 mm or more
snow is common to the region.
200 or more
2,000 or more
400 or more
1,000 or more
200 or more
Bolt
Nut
20 Washer
CAUTION
En-6