Scope Of Delivery; Accessories; Description Of The Pump - Wilo Atmos GIGA-I Einbau- Und Betriebsanleitung

5.3

Scope of delivery

5.4

Accessories

6

Description of the pump

Fig. 3: View Atmos GIGA-I
Fig. 4: View Atmos GIGA-D
Installation and operating instructions • Wilo-Atmos GIGA-I/-D/-B • Ed.01/2023-06
• When using water-glycol mixtures, the use of an S1 variant with a corresponding mech-
anical seal is generally recommended.
• The compatibility of the standard seal/standard mechanical seal with the fluid is gener-
ally given under normal system conditions.
Special circumstances may require special seals, for example:
–
solids, oils or EPDM-attacking substances in the fluid,
–
air content in the system, etc.
Observe the safety data sheet for the fluid to be pumped!
• Pump
• Installation and operating instructions
Accessories must be ordered separately:
Atmos GIGA-I/-D/-B:
• PTC thermistor tripping unit for switch cabinet installation
Atmos GIGA-I/-D:
• 3 mounting brackets with fixation material for installation on a base
Atmos GIGA-D:
• Blind flanges for repair work
Atmos GIGA-B:
• Supports for installation on a base or baseplate for rated powers of 5.5 kW and higher
For a detailed list, consult the catalogue and spare parts documentation.
All the pumps described here are low-pressure centrifugal pumps in compact construction
design with a coupled motor. The mechanical seal is maintenance-free. The pumps can be
installed both directly as a pipe installation pump in a sufficiently anchored pipe or placed
on a foundation base.
The installation options depend on the pump size. Suitable Wilo control devices (e.g. Wilo-
CC-HVAC system) can control the power of the pumps continuously. This allows optimisa-
tion of the pump output for the demands of the installation and economically efficient
pump operation.
Version Atmos GIGA-I
The pump housing has an in-line design, i.e. the flanges on the suction and discharge sides
lie along a centre line. All pump housings are provided with pump support feet. Installation
on a foundation base is recommended for rated powers of 5.5 kW and higher.
Version Atmos GIGA-D
Two pumps are arranged in a shared housing (twin-head pump). The pump housing has an
in-line design. All pump housings are provided with pump support feet. Installation on a
foundation base is recommended for rated powers of 4 kW and higher.
Only the base-load pump is operated in control mode in connection with a control device.
The second pump is available to fulfil full load operation requirements as an auxiliary peak
load. The second pump can adopt the reserve function in the event of a fault.
NOTICE
Blind flanges (accessories) are available for all pump types/housing sizes of
the Atmos GIGA-D series. When replacing the motor impeller unit (motor
with impeller and terminal box), a drive can therefore remain in operation.
NOTICE
To ensure the standby pump is ready for operation, operate the standby
pump every 24 h at least once a week.
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