OPERATION AND MAINTENANCE MANUAL
Wall Mounted 0121…0661
Monobloc Wall Mounted Unit - WMA/WMF 0121-0181-0251-0281-0331-0551-0661 - Rev. 2.0. - Date: 18-07-2000 EN
5 (32)
FUNCTION LIMITS
T outside air
T room air
T i = 40 °C
T i = 19 °C
T i = 35 °C
T e = 45 °C
T e = 47 °C
T e = 18 °C
Only if the condenser is fitted with the
RVC/e
speed regulator
MODELS WM 0551-0661
DESCRIPTION OF MAIN COMPONENTS
SELF-SUPPORTING FRAME
in 1.2 mm galvanised steel
EXTERNAL PANELS
in 1.2 mm, galvanised steel with RAL9001 cream-coloured epoxy powder paint and internally
lined in self-extinguishing abrasion-resistant sound and heat insulation material. Units are also available with
aluminium external panels
FILTER
in self-extinguishing material with EU2 efficiency (doc. Eurovent 4-5) fitted in rigid metal frame
SINGLE INLET RADIAL FANS
in the evaporator section
AIRFLOW SENSOR
for activating a low airflow alarm
COOLING COIL:
hydrophilic -treated large frontal area manufactured in copper tubing mechanically expanded into
aluminium fins, stainless steel tray with flexible condensate drain tube
ELECTRICAL HEATERS
(optional) with finned aluminium elements and safety thermostat for cutting off the power
supply and activating the alarm in the event of overheating
ELECTRICAL PANEL
housed in a compartment isolated from the airflow and which conforms to norms 73/23/CEE
- 89/336/CEE with:
•
auxiliary 24V transformer
•
main
switch
•
magnetothermal
protection
•
remote command switches
SCROLL COMPRESSOR
with high energy efficiency, low noise levels and built-in thermal.
FREE COOLING (WMF units)
: managed by the microprocessor which controls a motorised damper for the
introduction of fresh air.
REFRIGERANT CIRCUIT
including:
•
filter drier and flow sight glass
•
thermostatic expansion valve
•
high and low-pressure pressostats (HP with manual reset)
mP20W MICROPROCESSOR CONTROL:
includes room, outdoor and air delivery temperature sensors
‘TORX’
anti-tamper external screws
