Factory Direct: Holtop Suspended AHU with Heat Recovery for Energy-efficient Indoor Air Quality

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.

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.

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.

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.

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	LWH (mm)	Rated airflow (m3/h)	Supply fan		Exhaust fan		Coil				Heat recovery efficiency (%)	Filter class	N.W. (Kg)
Model	LWH (mm)	Rated airflow (m3/h)	Input power (kw)	ESP (Pa)	Input power (kw)	ESP (Pa)	Rows	Cooling cap. (kw)	Heating cap. (kw)	Water inlet/ out pipe spec.	Heat recovery efficiency (%)	Filter class	N.W. (Kg)
HJK- 010RQC4DY1	20841120550	1000	0.25	155	0.25	180	4	12.2	13.1	DN32	60	G2	240
HJK- 015RQC4DY1	20841200570	1500	0.32	155	0.25	180	4	18.4	19.8	DN32	60	G2	260
HJK- 020RQC4DY1	21941280570	2000	0.45	160	0.32	190	4	25.2	27	DN40	60	G2	280
HJK- 025RQC4DY1	22441400620	2500	0.55	160	0.55	190	4	30.4	33.1	DN40	60	G2	310
HJK- 030RQC4DY1	23541400630	3000	1	250	1	250	4	36.4	39.7	DN40	60	G2	360
HJK- 040RQC4DY1	24041400695	4000	1	290	1	330	4	14.9	46.4	DN50	60	G2	400
HJK- 050RQC4DY1	25541530705	5000	1.5	330	1.5	350	4	50.2	56.7	DN50	60	G2	440
HJK- 060RQC4DY1	26341750800	6000	2.2	400	1.5	400	2	66	68.3	DN65	60	G2	530
HJK- 080RQC4DY1	29042000900	8000	3	430	3	430	2	83.9	86.4	DN65	60	G2	690
HJK- 100RQC4DY1	29042200960	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.