Airwell AQL 70 [11/63] Product description
Макгруп McGrp.ru
Задайте вопрос
Зарегистрироваться

Airwell AQL 70 [11/63] Product description

Airwell AQL 25 [11/63] Product description
Product Description
mum operating pressures correspond to 10 bar for
the water side and to 30 bar for the refrigerant side.
Antifreeze protection for the water in the exchangers
is ensured by electrical heaters and differential pres-
sure switches for 30 units and by flow switches for
the other units. The water side of these exchangers is
connected by manifolds which will provide for the
connection to the plant by means of one single gas
threaded attachment.
Condensing batteries
The batteries forming the condenser are made up of
copper tubes arranged in staggered rows and me-
chanically expanded inside an aluminium finned
pack.
The maximum operating pressure on the refrigerant
side of the condensing batteries will correspond to
28 bar.
Condenser Fans
The condenser fans are of a helical type. They are di-
rectly coupled and have an impeller with wing con-
toured aluminium blades. Each fan is equipped with
a galvanised steel accident-prevention protection
which is painted after manufacture. The fans motors
are completely closed. They have an IP54 protection
degree and a protection thermostat embedded in the
windings.
Fans Control
All models have a step speed controller as a stan-
dard. It will act according to the condensing pres-
sure and allow the operation up to an external oper-
ation of –5/10°C
Refrigerating Circuits
Each unit is equipped with a single refrigerating cir-
cuit of external service valves intended to measure
the refrigerant pressure and charge, a sight glass
with a humidity indicator, a dryer filter and a thermal
expansion valve.
Refrigerating circuits are also complete with a high
pressure switch as well as a high and low transduc-
er.
Control Supply Panel
All components of the control system and those nec-
essary to start the motors are shop connected and
tested. In 40-130 models, the components of the con-
trol system and of the supply system are accessible
through separate doors, while in 20-25-30-35 mod-
els the board is protected by a door which can be re-
moved with a screwdriver. The control compartment
contains an electronic card and a control board with
keyboard and display, to show the operational func-
tions, as well as the intervention of the alarms and
the working blocks.
2.2 Accessories
Water Filter
In 20-35 units, the 1-1/2” filter is included in the sup-
plied equipment; in 40-130 units (in the model
equipped with a pump) the filter is positioned in the
hydraulic circuit, while in the models without pump it
is supplied as an optional.
Anti-Vibration Kit
For 20-35 units, the anti-vibration kit made of special
rubber is provided together with the unit. As for 40-
130 models, the kit includes 4 spring shock-ab-
sorbers, to be mounted during the installation of the
unit by the customer.
Electrical flow switch or Water Differential
Pressure Switch
Models 20-35: differential pressure switch.
Models 40-130: electrical flow switch.
Corrosion proofing protection
for condensing batteries
Two-level optional treatment
I) Simple treatment for a non extreme application
II) Treatment for an extreme blygold application.
Intrusion proofing protection
for condensing batteries
A galvanised and painted steel wire net protection is
assembled outside the unit.
Water Gauge
It is assembled on the unit as a standard.
Pump
Double pump kit (Mod. 40-130)
Standard pump with head >10m H
2
O
High Pressure Fans (high head)
For 40-130 units, channeled fans with static pressure
80 Pa (models 40-60) and 100 Pa (models 70-130).
3-Wire Supply Kit
For 40-80 units, 3-phase supply without neutral wire
(for 90-130 units, supply without standard neutral
wire).
Page 10

Содержание

Похожие устройства

Скачать