Options And Accessories - Lennox NEOSYS NAC 200 Application Manual

OPTIONS AND ACCESSORIES

OPTIONS
Low-pressure single-pump
hydraulic module
High-pressure single-pump
hydraulic module
Low-pressure twin-pump
hydraulic module
High-pressure twin-pump
hydraulic module
Partial heat recovery
Total heat recovery (Free
hot water : 100% heat
recovery)
Free cooling
Winter operation (from +6°C
down to -20°C) – Cooling
only units
Brine operation (From +5°C
down to -10°C)
Anti-freeze protection (down
to -20°C)
Anti-freeze protection
of Total Heat Recovery
exchanger
Heavy anti-corrosion coil
treatment
Rear protection grille
• 8 •
DESCRIPTION
Low-pressure single pump, regulating valve,
Victaulic couplings, fi lter and all necessary
hydraulic devices. Refer to specifi c chapter.
High-pressure single pump, regulating valve,
Victaulic couplings, fi lter and all necessary
hydraulic devices. Refer to specifi c chapter.
Low-pressure twin pumps, regulating valve,
Victaulic couplings, fi lter and all necessary
hydraulic devices. Refer to specifi c chapter.
High-pressure twin pumps, regulating valve,
Victaulic couplings, fi lter and all necessary
hydraulic devices. Refer to specifi c chapter.
Plate heat exchanger on each compressor
circuit allowing recovery of 20% of the rejected
heat
Recovery brazed plates heat exchanger dual-
circuit mounted in parallel to the air condensers
allow 100% heat recovery in all outdoor air
conditions.
Additional free cooling coils (one "V" or two "V"
depending on needed capacity) with inverter
fans and motorised valves.
Unit fi tted with electronic expansion valve and
variable frequency driven fans. Select "anti-
freeze protection" option if no glycol water
Unit fi tted with electronic expansion valve,
variable frequency driven fans and reinforced
evaporator and piping thermal insulation.
Resistance heaters on the evaporator,
hydraulic module and partial heat recovery if
selected. To be selected if no glycol water.
Resistance heater and insulation of the
recovery exchanger, to be selected if no glycol
water.
Application of LenGuard treatment on the
entire coil surface.
Metallic grille fi tted at the back of the unit
ADVANTAGES
Quick start-up on job site. Available
pressure around 150 kPa.
Quick start-up on job site. Available
pressure around 250 kPa.
Quick start-up on job site. Available
pressure around 150 kPa.
Quick start-up on job site. Available
pressure around 250 kPa.
Allow free hot water production
simultaneously with unit operation
Production of free hot water at the
same time of the production of chilled
water.
Allow the chilled water to run through
the free-cooling system, which uses
less power and utilises the lower
ambient air to cool the water.
Increased operating range in
cooling down to -20°C ambient
temperature. (Standard on sizes
540/600/640/1080).
Increased operating range in
cooling down to -10°C water leaving
temperature for thermal storage or
process cooling.
Evaporator and hydraulic module
frost protection down to -20°C
ambient temperature
The recovery exchanger have frost
protection down to -20°C ambient
temperature.
High corrosion resistance for
severe industrial, marine and dirty
environments.
Prevents the rear V-coil against
possible damage
Application Guide / NEOSYS-AGU-1801-E
MODELS
NAC 200 ► 640
NAH 200 ► 480
NAC 200 ► 640
NAH 200 ► 480
NAC 200 ► 640
NAH 200 ► 480
NAC 200 ► 640
NAH 200 ► 480
NAC 200 ► 640
NAH 200 ► 300
NAC 200 ► 640
NAC 200 ► 540
NAC 200 ► 480
NAC 680 ► 960
NAC 200 ► 1080
NAC 200 ► 1080
NAH 200 ► 480
NAC 200 ► 640
NAC 200 ► 1080
NAH 200 ► 480
NAC 200 ► 640
NAH 200 ► 480