Danfoss OPTYMA Plus OP-LPQM Instructions Manual page 5

Instructions
wiring (picture 5) as described below.
This modification may be done by
authorized electricians only. Country
legislations have to be followed.
Disconnect the condensing unit from
power supply (turn hardware main
switch off )
• Contact of Room Thermostat must be possible to
switch 250VAC.
• Remove wire 22 (safety input DI3) and wire 24
(room thermostat DI1) and put them together
with an insulated 250 Vac 10mm² terminal
bridge.
• Remove wire 25 (room thermostat DI1) and wire
11 (compressor supply) and put them together
with an insulated 250VAC 10mm² terminal
bridge.
• Remove wire 6 and connect it with terminal
bridge for wire 11 and 25. A fan pressure switch
or fan speed controller can be connected in
series to wire 6.
• Remove wire 14 (crankcase heater) and connect
it to the compressor contactor terminal 22.
• Remove wire 12 (supply crankcase heater), extend
this wire by using an 250 Vac 10mm² terminal
bridge and 1,0mm² brown cable and connect it to
compressor contactor terminal 21
• Remove the large terminal block from the
controller terminals 10 to 19.
• Connect the condensing unit to power supply
(turn hardware main switch on).
15 – Maintenance
Always switch off the unit at main
switch before opening the fan door
(s).
Internal pressure
temperature are dangerous and may
cause permanent injury.Maintenance
operators and installers
appropriate skills and tools. Tubing
temperature may exceed 100°C and
can cause severe burns.
Ensure that periodic
inspections to
reliability and as required by local
regulations are performed.
To prevent system related problems, following
periodic maintenance is recommended:
• Verify that safety devices are operational and
properly set.
• Ensure that the system is leak tight.
• Check the compressor current draw.
• Confirm that the system is operating in a way
consistent with previous maintenance records
and ambient conditions.
• Check that all electrical connections are still
adequately fastened.
• Keep the unit clean and verify the absence of rust
and oxidation on the unit components, tubes
and electrical connections.
© Danfoss | Climate Solutions | 2022.02
The condenser must be checked at least once a year
for clogging and be cleaned if deemed necessary.
Access to the internal side of the condenser takes
place through the fan door. Microchannel coils
tend to accumulate dirt on the surface rather than
inside, which makes them easier to clean than fin-
&-tube coils.
• Switch off the unit at main switch before opening
the fan door.
• Remove surface dirt, leaves, fibres, etc. with a
vacuum cleaner, equipped with a brush or other
soft attachment. Alternatively, blow compressed
air through the coil from the inside out, and
brush with a soft bristle. Do not use a wire brush.
Do not impact or scrape the coil with the vacuum
tube or air nozzle.
• Before closing the fan door, turn the fan blade
in a safe position, to avoid that the door hits the
fan.
If the refrigerant system has been opened, the
system has to be flushed with dry air or nitrogen
to remove moisture and a new filter drier has to be
installed. If evacuation of refrigerant has to be done,
it shall be done in such a way that no refrigerant can
escape to the environment.
Fig A: Fully opened condition, Port 2 and 3 is fully
opened and port 4 is fully closed
and surface
require
service
Fig B: Fully closed condition, Port 3 and 4 is partially
ensure system
open and port 2 is fully closed
Fig C: Partially Opened Condition (5.5 turns clock
wise from fully opened condition. Port 2, 3, 4 is fully
opened).
16 – Declaration of incorporation
• Pressure Equipment Directive 2014/68/EU
EN 378-2:2016 - Refrigerating systems and Heat
Pumps - Safety and environmental requirements-
Parts 2: Design, construction, testing, marking and
documentation.
Low Voltage Directive 2014/35/EU EN 60335-
1:2012 + A11:2014- Household and similar
electrical appliances-Safety-Part
requirements-for all above mentioned condensing
units Eco-design DIRECTIVE 2009/125/ EC,
establishing a framework for the setting of Eco-
design requirements for energy-related products.
REGULATION (EU) 2015/1095, implementing Eco-
design Directive 2009/125/EC with regard to Eco-
design requirements for professional refrigerated
storage cabinets, blast cabinets, condensing units
and process Chiller.
• Condensing unit measurements are made
according to standard "EN 13771-2:2017" –
Compressor and condensing units for refrigeration-
performance testing and test methods- part 2:
Condensing units.
17 - Warranty
Always transmit the model number and serial
number with any claim filed regarding this product.
The product warranty may be void in following
cases:
• Absence of nameplate.
• External modifications, in particular, drilling,
welding, broken feet and shock marks.
• Compressor opened or returned unsealed.
• Rust, water or leak detection dye inside the
compressor.
• Use of a refrigerant or lubricant not approved by
Danfoss.
• Any deviation from recommended instructions
pertaining to installation,
maintenance.
• Use in mobile applications.
• Use in explosive atmospheric environment.
• No model and serial number transmitted with
the warranty claim.
18 – Disposal
Danfoss recommends that condensing
units and oil should be recycled by a
suitable company at its site.
Only for Norway
118A5382A - AN18658643414604-001701 | 5
1: General
application or