IOM SYSVRF2 AHU BOX0620 20220209 134828067

05
Perform checks upon completion of installation, and pay
extra attention to the following items:
Whether the temperature sensor is properly installed.
Whether AHU control boxes are properly secured.
Whether electrical connections meet specifications.
Whether wires and pipes are correctly connected.
Whether AHU control boxes are properly grounded.
Whether capacity DIP switches are properly set.
3.2 Choosing an Installation Site
3.3 Installation Methods and Size
The following conditions must be met:
If the AHU control box is installed outdoors, take
waterproofing measures to protect it from rainwater.
Avoid direct sunlight, as it will heat the AHU control box
and shorten its service life, hence affecting operation.
Select a level, solid-mounting surface.
Do not install the AHU control box on or above the
surface of the ODU.
Reserve some space in front of the AHU control box for
future maintenance.
Ambient temperature: -25°C to +52°C
Inlet air temperature range on AHU coil (T1):
Cooling: 17°C-43°C
Heating: 5°C-30°C
IP Protection Degree: IP20 (after proper installation)
Places with fossil fuels (such as kitchens
containing oil or natural gas)
Places containing sulphuric gas, such as a
hot spring
Places exposed to strong electromagnetic
fields
Places with large voltage fluctuations
Places where acidic or alkaline steam is
present
Places with high concentrations of vapour or
spray
Do not install or operate AHU control boxes in
the following indoor environments:
CAUTION
For installation of the field supply AHU, refer to the AHU installation manual.
The AHU control box can be installed in two ways:
1. When the AHU control box's EEV remains with the AHU control box, the AHU control box must be installed vertically, as
shown in Figure 3-2.
2. When the AHU control box's EEV is split from the AHU control box, the AHU control box can be installed vertically or horizon-
tally, but the split EEV must be vertical, as shown in Figure 3-2.
Connect to outdoor unit
Connect to DX AHU
Wire passing-hole
65 65
135
65
95
124.8
93
36
Φ24
Φ39
Units: mm