General Description; Fwck/Fwhk - Lennox FWCK Installation, Operating And Maintenance Manual

GENERAL DESCRIPTION

The air conditioner, horizontal compact, water condensed type FWCK/FWHK, are specially designed for small and average
installation, office, house, etc.
On standard version the unit cleans, filters, cools and dehumidifies the air (FWCK), and in addition heats if it is heat pump unit
(FWHK). You are able to incorporate option elements such as electrical heater or hot water coil.
CABINET
The cabinet is made of galvanised steel with compact
dimensions and features allow the unit to be positioned in
almost any location.
Internally the unit incorporates thermal acoustic insulation
to reduce sound level.
AIR EXCHANGER
Made of copper tubing with aluminum swirl fins, they are
designed and specially dimensioned to obtain the maximum
output.
COMPRESSOR
Rotary compressor for 04 model and Scroll for the rest of
the models, all of them with internal thermic protection. It
is mounted on vibration-absorbent blocks both on the inside
and outside, statically and dynamically balanced.
FAN
The units include a centrifugal three speed motor fan, with
a motor directly fitted (except FWCK/FWHK 22 with belts-
pulley), with high performance on air flow.
WATER EXCHANGER
The unit includes an exchanger plate, compact and resistant
made on stainless steel, specially selected for this type of
unit.
COOLING/HEATING CIRCUIT
Made of welded dehumidifying copper tube with access
connections.
Cooling only units (FWCK):
They include dehydrator filter, liquid recipient, and
expansion system, high pressure switch for all models
and low pressure switch for modes 08-10-12-16-22.
Heat pump units (FWHK):
They include thermostatic valve as expansion system,
high and low pressure switches for all models. In addition
they includes a security thermostat for low warter
temperatures, 4 ways valve and liquid recipient.
To work properly in heating mode, the unit includes check
valve, restrictor and filter drier.
The unit leaves the factory with R407C refrigerant.
WATER CIRCUIT
It includes water threaded connections H-G.
Heat pump units include a differential water switch in order
to stop the unit without water flow.
AIR FILTER
A polypropylene washable air filter is incorporated in the
unit it is accessible for maintenance operations.
ELECTRIC CIRCUIT
The electrical box includes all the components and terminal
blocks needed for the installation. It includes a printed
board, starting timer and reversible working mode in heat
pump units. In addition alarm, ON/OFF remote and dry
contact for water pump are available too.
The wired remote control manages the unit.
REMOTE CONTROL
The unit includes a wired remote control with LCD display.
AUTO
KEYLOCK
MON TUE WED THU FRI SAT SUN
TIMER ACTIVE SET TIMER SET CLOCK
SLEEP FAN
SWING ON TIMER
CLOCK
HOLD DAY
Basic characteristics for the controller:
- 3 fan speeds (High/Medium/Low).
- Different modes of working: Cool, Heat, Auto, Fan and
Dry.
- Sleep mode.
- 7 days programmable timers.
- Real time clock
- Keyblock function
- Alarms display
- Temperature indication ºC ó ºF.
OPTIONS
Electrical heater mounted on fan discharge.
•
• Hot water coil (for cooling only units).
• Pressostatic valve regulating water flow for cooling only
models.
• Flow switch.
• Water filter.
• Main switch (not available for 04-06-07 models).
• Compressor acoustic jacket.
• Three phase protection (three phase units).
2
SLEEP
SWING
DRY AUTO COOL HEAT FAN
COOL
TEMP.
HEAT
TEMP.
ROOM
TEMP.
OLT-1X Controller
ON / OFF
MODE SET TEMP
OFF TIMER
HOUR MINUTE