If you are looking for a better solution than VRF systems look no further. AERMEC is now introducing their simultaneous hot and chilled water heat pumps to the North American HVAC market!
4. State
Kentucky
Cost of NG,
9.4
$/1000 cu ft
Cost of NG,
0.0092
cent/BTU
Required
1,000,000
BTU/h
Hours of
15
operation/day
Days of
operation/
250
year
Annual
34,558.82
savings, $
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Simultaneous cooling & DHW
11. • One unit for the production of hot and cold water, instead of
the combination of chiller + boiler
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– Note: The use of a heat recovery units of not polyvalent
type, can produce hot water ONLY if cold water is also
required, also the number of compressors in operation is
determined only by the cooling load. It’s different with NRP
Reduction of technical spaces
Simplification of the hydronic system and thermoregulation
Reduced maintenance
Energy savings
Cost reduction
Simultaneous heating and cooling & DHW
13. •
•
Production of hot water to 131F
•
EER = 15.5
•
COP = 3.80 or 4 in counter flow
•
Water cooled heat pump units
Heat pumps with scroll
compressors
•
Cooling from 32 up to 103 ton
•
Heating from 36 up to 126 ton
•
22
R410A Refrigerant
Only 31.5 inches wide
AERMEC Water to Water
14. • compared to the version
without pumps length = +
3 feet
• 2 pumps condenser side
(1 in standby)
• 2 pumps evaporator side
(1 in standby)
• one expansion vessel
user side
• Available with low or high
pressure
• 0-10 V signal for
condensing water flow
24
AERMEC Water to Water
17. This is a schematic diagram of the refrigerant circuit
for the NXW units with refrigerant side inversion.
18. This is a schematic diagram of the
refrigerant circuit for the NXW units
with water side inversion and a
desuperheater
CP
V SIC
RU
FD
VS
HGBE
IDL
VT
compressor
safety valve
shut off valve
filter
solenoid valve
hot gas bypass
sight glass
expansion valve
19. This is a schematic
diagram of the refrigerant
circuit for the NXW units
with water side inversion
and total heat recovery –
6 pipe system
22. 3” Isolating valves
By using true parallel unit connection
the entire chiller plant does not need
to be stopped to isolate a unit in case
of a break. Isolating valves allow
to pull a unit out of the array while the
whole system continues to operate
10” Isolating valves
The same procedure is impossible
with connection in parallel used by
other manufacturers
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AERMEC Water to Water
23. Cassette Fan Coils
Ducted Fan Coils
Cabinet style
Inverter Fan Coils
High Wall Fan Coils
29
AERMEC Fan Coils
24. (FCX US 17–102)
FCX US Fan Coils - Universal / Vertical Installations
• Available in 9 sizes, cooling from 3415 up to 26024 BTU/h
•
•
•
•
•
3 speed fan unit
Power Supply: 115V – 1 – 60Hz
Metal cabinet with durable polyurethane coating
Motors with permanently connected condensers
Low noise operation (world’s quietest)
At a 25.5 decibel rating, the AERMEC fan coils emit lower
noise than a whisper quiet library (30dB).
30
AERMEC Cabinet Fan Coils
25. (FCX USP 17–102)
FCX USP Fan Coils - Ductable Installations
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•
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•
Available in 9 sizes and 2 versions, cooling from 3,415 up to 60,024 BTU/h
FCX USP = low static, 3 speeds
FCX USPO = high static, 7 speeds
Power Supply: 115V/1/ 60Hz up to 2 tons, 220/1/60 up to 5 tons
Only 8 ½ inches deep
Low noise operation (world’s quietest)
At a 25.5 decibel rating, the AERMEC fan coils emit lower
noise than a whisper quiet library (30dB).
31
AERMEC Ducted Fan Coils
26. Comfort: much higher precision in a constant ambient temperature
Acoustic Comfort: The speed change is continuous
and not acoustically noticeable.
At a 22,5 dB(A) the AERMEC fan coils emit lower noise
than a dB level at a whisper only library (30 dB(A)).
32
AERMEC Inverter Fan Coils
28. (FCL 82–122)
FCL Fan Coils – Suspended ceiling Installations
Available in 3 sizes, FCL 82, 102, 122
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•
•
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Cooling 1.7 – 2.6 – 3.1 ton
4 speed fan unit
Power Supply: 220V – 1 – 60Hz
3-way valve and drain pump incorporated inside
Low noise operation (world’s quietest)
At a 26 decibel rating, the AERMEC fan coils emit lower
noise than a whisper quiet library (30dB).
34
AERMEC Cassette Fan Coils
29. FCW Fan Coils – high wall Installations
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Available in 3 sizes, FCW 21, 31, 41
Cooling from 6500 up to 14000 BTU/h
3 speed fan unit
Power Supply: 220V – 1 – 60Hz
2-way/3-way valve incorporated inside
Low noise operation (world’s quietest)
At a 28.5 decibel rating, the AERMEC fan coils emit lower
noise than a whisper quiet library (30dB).
35
AERMEC High Wall Fan Coils
31. 1-row coil
maximum
Fan speed
4-row coil
maximum
355
355
Air flow rate
CFM
Heating capacity
BTU/h
9,285
11,005
Dry bulb air inlet temperature
0F
68.00
68.00
Dry bulb air outlet temperature
0F
92.37
96.85
Inlet water temperature
0F
130.00
104.00
Outlet water temperature
0F
120.00
94.00
Water flow rate
gpm
1.75
2.19
Water pressure drops
psi
4.95
1.10
37
AERMEC New valve
In heating mode NRL units can operate down to 5F (-15C) providing hot water at 104F (+40C). However, at 26,6F (-3C) we can produce hot water at 131F(55C).
This is a diagram of the refrigerant circuit for the NRL Chillers. Note the redundancy with two circuits built into all NRL units. The arrows in the blue circuit are the water in and out.
In this diagram you will notice the two desuperheater coils (in the blue circles) that have been added to the cooling circuit. The refrigerant passes through the desuperheater at all times when the unit is in operation. The heat is extracted when the external pump starts and pumps the hot water to the external storage tank. Also notice the CPCE valve. This valve is a hot gas injection valve protecting the evaporator from freezing in case of a low pressure situation when the pressure on the high pressure side drops down too much.
This diagram shows the NRL with 100 percent heat recovery. In the blue circles you will see the heat recovery heat exchangers. These units are only in use when there is a call for heat recovery. The system is automated so that when there is a call for heat recovery VSR1 and VSR2 switch position allowing the refrigerant to flow in to the heat recovery heat exchangers. When the call is satisfied the valves switch position again and the refrigerant heads through the condensers.
Aermec manufacture many types of fan coils. Being the largest European manufacturer Aermec produce up to 1000 pieces of fan coils every day. To produce this amount Aermec use a Robotic line. A short movie, which I am about to show you illustrates the production process. Please take note that Aermec manufacture the worlds quietest fan coils.
On this slide we see the Aermec new high wall fancoils. It’s available in 3 sizes from 6500 BTU/h up to 13 000 BTU/h. It has an integrated 3-way valve inside of the unit. This year we are expecting a bigger size of this fan coil FCW 51 with higher performance. Again silent operation and attractive view.
