Preparation Initial Check; Initial Check; Placing The Unit - Hitachi RCUE40AG1 Installation, Operation And Maintenance Instructions

5. PREPARATION INITIAL CHECK

5.1. INITIAL CHECK

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Required Materials
Measure and Architectural Information Regarding
Installation Location
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Installation Location
Confirm that the final installation location is provided with
convenient piping and wiring work. Strong water runoff
should be avoided.
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Installation Space
Check for obstacles which restrict condenser Air flow or
hamper maintenance work in the space specified in Fig. 1.
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Foundation
Check to ensure that the foundation is flat, level and
sufficiently strong, taking into account the maximum
foundation gradient (Fig. 2) and the unit weight balance.
Confirm elevation provision for the unit on a solid base with
an iron frame or concrete curbs shown in
chapter 4.4.

5.2. PLACING THE UNIT

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DANGER:
If leakage is detected, stop the unit and contact the
installer or service shop. Do not use a naked fire near
the refrigerant gas. If a naked fire is utilised near the
refrigerant gas, refrigerant is turned into a harmful
phosgene compound.
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WARNING:
This unit is operated with refrigerant R407C, (R22
option), which is non-flammable and non-poisonous.
However, refrigerant itself is heavier than the
atmosphere so that a floor is covered with refrigerant
gas if refrigerant is leaked. Therefore, keep good
ventilation to avoid choke during servicing.
#
CAUTION:
Check to ensure that valves are correctly opened. If
not opened, serious damage will occur to the
compressor due to an abnormally high pressure.
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Tools And Instruments
Pincers, Wrenches, Facilities to Transport and Place The
Unit.
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Transportation
Transportation the unit as close to the final installation
location as practical before unpacking is accomplished.
Provide adequate facilities to place the unit on the
foundation, with sufficient consideration given to those
individuals performing the installation.
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Unpacking
Follow the instructions marked on the packing.
h1 ≤ h2
Fig.1. Operation Space
In order to obtain proper clearance beneath the unit for
either rooftop or on-the-ground installation, where
foundation bolts should be sunk into concrete. Additionally,
for on-the ground installation, provide a gravel or concrete
space around the condenser Air intake; in order to avoid
Airflow obstruction due to grass or other vegetation.
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Check to ensure that the unit has been transported without
damage. File a damage claim with the transportation
companies if mishandling due to transportation company
negligence is suspected.
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Secure the route to the final installation location by
confirming the dimensions, (Refer to the "Unit General
Data" in Catalogue).
NOTE:
"
The unit should be installed in an upright position within the
gradient shown in Fig.2.
3000 mm
Overhead Air
Clearance
Fig.2. Maximum Foundation Gradient
PREPARATION INITIAL CHECK
Unit
Transportation
The height of wall shall be smaller than that of the unit
cabinet.
When the unit is installed at the location where the unit
is encircled with walls and obstruction of free Air
circulation is suspected, construction with HITACHI
regarding the operation space is recommended.
Maximum Foundation Gradient
15 mm
5
/7
30 mm