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Holtop Suspended AHU Air Handling Unit with Heat Recovery

• Equipped with supply fan and exhaust fan, brings in fresh air and exhausts out stale indoor air as well
• Equipped with plate heat exchanger, recovers energy from outgoing indoor air, to save operating costs
• Thin height, easily installed in the ceiling space

 

Products Detail

MAIN FEATURES AND COMPONENTS

Main features:
• Equipped with supply fan and exhaust fan, brings in the fresh air and exhausts out stale indoor air as well.
• Equipped with plate heat exchanger, recovers energy from outgoing indoor air, to save operating costs.
• Thin height, easily installed in the ceiling space.

 rooftop ahu

Housing construction

a. Double skin panel
25mm thick, inner skin made of galvanized steel sheet, outer skin color steel sheet, between skins is sandwiched with high-density fireproof PU with a thermal coefficient below 0.0199W/m∙˚C

b. High airtightness
Double inlaid sealing system to tightly join the framework and panels, total air leakage rate below 3%

panel

Supply fan and exhaust fan

Outer rotor motor, direct driven centrifugal fan, dynamic balance, compact and low noise level.

fan

Heat exchangers

  • Total heat or sensible heat type available for different applications. The total heat exchanger is made of special fiber paper, featured by high moisture permeability, good airtightness, excellent tear resistance, and aging resistance. Suitable for high humidity difference between conditioned space and outdoors.
  • The sensible heat exchanger is made of thin aluminum foil, featured by high heat conductivity and long service life. Suitable for the high-temperature difference between indoors and outdoors.

heat exchanger

Airflow damper (optional)

  • The edges of the lamina are with special plastic seals, which ensures low leakage.
  • Manual or motorized control is available for options.

damper

Water cooling/heating coil

  • Copper pipe with double-side bent wave hydrophilic aluminum foil, higher heat exchange performance.
  • Air releaser and drainage plug are set in pipe connection box to ensure return path free from accumulated air, convenient for maintenance in winter.

coil

Filter

  • Plate type(G2) coarse filter as standard configuration (Medium filter F5~F8 available as per request of the customer)
  • Draw-push installation, easy maintenance.

filter

ELECTRICAL CONTROL

Standardly, we do not offer control boxes and related control components for AHUs but offer wiring terminals only. Besides, we offer the following control system as options.

• Independent run/stop of supply fan and exhaust fan
• Water switch control and temperature control
• LCD thermostat controller
• DDC (PLC) controller is optional

control

SUITABLE AIRFLOW

Model Suitable airflow
HJK-010RQC~HJK-015RQC 1000m3/h~1500m3/h
HJK-020RQC~HJK-025RQC 2000m3/h~2500m3/h
HJK-030RQC~HJK-040RQC 3000m3/h~4000m3/h
HJK-050RQC~HJK-060RQC 5000m3/h~6000m3/h
HJK-080RQC~HJK-100RQC 8000m3/h~10000m3/h


PERFORMANCE PARAMETERS

Parameter charts (fresh air condition)

Model L*W*H (mm) Rated
airflow
(m3/h)
Supply fan Exhaust fan Coil Heat
recovery
efficiency (%)
Filter
class
N.W.
(Kg)
Input
power
(kw)
ESP
(Pa)
Input
power
(kw)
ESP
(Pa)
Rows Cooling
cap.
(kw)
Heating
cap.
(kw)
Water
inlet/
out
pipe
spec.
HJK-
010RQC4DY1
2084*1120*550 1000 0.25 155 0.25 180 4 12.2 13.1 DN32 60 G2 240
HJK-
015RQC4DY1
2084*1200*570 1500 0.32 155 0.25 180 4 18.4 19.8 DN32 60 G2 260
HJK-
020RQC4DY1
2194*1280*570 2000 0.45 160 0.32 190 4 25.2 27 DN40 60 G2 280
HJK-
025RQC4DY1
2244*1400*620 2500 0.55 160 0.55 190 4 30.4 33.1 DN40 60 G2 310
HJK-
030RQC4DY1
2354*1400*630 3000 1 250 1 250 4 36.4 39.7 DN40 60 G2 360
HJK-
040RQC4DY1
2404*1400*695 4000 1 290 1 330 4 14.9 46.4 DN50 60 G2 400
HJK-
050RQC4DY1
2554*1530*705 5000 1.5 330 1.5 350 4 50.2 56.7 DN50 60 G2 440
HJK-
060RQC4DY1
2634*1750*800 6000 2.2 400 1.5 400 2 66 68.3 DN65 60 G2 530
HJK-
080RQC4DY1
2904*2000*900 8000 3 430 3 430 2 83.9 86.4 DN65 60 G2 690
HJK-
100RQC4DY1
2904*2200*960 10000 4 500 4 500 2 108.5 110.4 DN65 60 G2 770

Working Conditions:
• Cooling: Outdoor air DB35˚C, WD28˚C, cold water inlet/outlet temperature 7˚C/12˚C.
• Heating: Outdoor air DB0˚C, hot water inlet/outlet temperature 60˚C/50˚C.


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