TheHan Technology Co.,Ltd.

EHP

The EHP method is applied to the anti-temperature humidity air-conditioning system, which incorporates a heat exchanger with direct refrigerant flow inside the air-conditioning system, and converts the air flow to One Touch automatic method by Micro Computer Control so that the cooling, heating, humidification, dehumidification, anti-temperature humidity and anti-temperature agent humidity operate completely independently.

Features of EHP Air Handling Unit

Power consumption and water supply capacity DOWN using EHP outdoor machine
EHP system can be applied to air-conditioner to suit anti-temperature resistance conditions at desired sites.
Adding existing EHP air conditioning + dehumidification (reheat), humidification, and energy saving operation functions for heating and cooling
Cooling, heating, humidification, dehumidification, anti-temperature humidity, and anti-temperature dehumidification can operate independently.
The cost of re-heating during the summer by using waste heat from the outdoor air is ‘0’
Utilizes waste heat that is discarded according to site, and can be used for heating

Primary Uses

GMP and CGMP certification sites
HACCP certification site
Crin Room site requiring anti-temperature resistance
Site to improve the existing anti-temperature resistance air conditioning system
A site with insufficient hand-held capacity or difficult to expand
Excessive maintenance cost of anti-temperature resistance

A Study on the Application of Clean Room Air Conditioning System

EHP HVAC system drawing

Touch panel screen of automatic control

General D.X AHU vs. EHP AHU

1) Configuration and features comparison

Division	D.X AHU type	EHP AHU type
Heat exchanger	D.X Heat exchanger + Electricity heater	Heat pump exchanger
Compressor	A fixed compressor	A variable compressor(Inverter type)
C.D.U	– General C.D.U (Compressor on/off) – C.D.U Fan (Regular operation)	– EHP C.D.U (Inverter) – C.D.U Fan (Variable operation)
Refrigerant	R-22	R-410 (Eco-friendly)
Special feature	1. The amount is relatively cheap and the facility structure is simple 2. Electric heater enables reliable heating even in cold winters	1. Heating heater installation(X) by using EHP system 2. Cost of zero won since re-heat load is used for condensed waste heat 3. Install the Heater(X) by applying a vaporizing humidifier 4. Partial load operation is possible with DC inverter and efficiency is high

2) Maintenance comparison

Division	General D.X AHU	EHP AHU
Filter management	SAME	SAME
Heating coil	Repair cost due to unstable steam pressure	Reliable use of refrigerant makes little repair cost
Compressor	1. Frequent on/off cycles are short 2. Due to the nature of only one compressor, the entire operation will be shut down in the event of a failure.	1. Long replacement cycle due to linear inverter motor drive characteristics 2. Back-up operation is possible without full shutdown even if one fails with a combination of several small compressors.
Condensing blower	Frequent on/off cycles are short	Due to linear inverter motor drive characteristics, replacement cycle is high
Electric heater (for Reheat)	1. Fire concern due to high temperature 2. Excessive electricity prices due to dehumidification in summer	1. No high-heat unit, no fire concern 2. No separate electricity charges due to dehumidification during the summer
Safety manager	50HP will be subject to the selection of a separate high-pressure gas safety manager	non-preferred (No more than 50 horsepower due to EHP outdoor air configuration characteristics)

Installation case of EHP AHU

Adress : Daejeon City, Korea
Production item : General medicine (Daewoong Pharmaceuticals Affiliate, GMP Air-conditioning site)
Quantity and Capacity of Installation Facilities: Installation of two 60HP anti-temperature and humidity air conditioning units
Power consumption : 60kW * 2SET
Improved room anti-temperature resistance and differential pressure
Reduction of heating and reheating loads (formerly gas boiler → EHP method)
Replacing the existing hydrant status without extension is installed

Specification of EHP AHU

Item name				EHP AHU – Return fan built-in type
Model name				PAH-A-400R	PAH-A-500R	PAH-A-600R	PAH-A-720R	PAH-A-800R	PAH-A-960R
Volume of air	Air supply	Standard	㎥/min	400	500	600	720	800	960
		Range	㎥/min	360~440	450~550	540~660	648~792	720~880	864~1056
		Standard	Pa	90	90	90	100	100	110
	Ventilation	Standard	㎥/min	360	450	540	648	720	864
		Range	㎥/min	324~396	405~495	486~594	583~713	648~792	778~950
		Standard	Pa	45	45	45	45	45	45
FAN	Air supply[Direct or belt type]		# DS	# 4.5	# 5	#5.5	# 5.5	# 6	# 7
FAN	Ventilation[Direct or belt type]		# DS	# 4	# 4.5	# 5	# 5	# 5.5	# 6
Standard coil capability	Cooling[DX]	Standard	kW	180	224	270	336	360	448
	Cooling[DX]	Range	kW	~181	~225	~270	~337	~361	~449
	Heating[DX]	Standard	kW	200	252	300	378	400	504
	Heating[DX]	Range	kW	~201	~253	~301	~379	~401	~505
	Reheat	Standard	kW	90	112	135	168	180	224
	Reheat	Range	kW	~91	~113	~136	~169	~181	~225
	A full area		㎡	2.74	3.43	4.09	4.80	5.49	6.40
Control type			–	E.E.V	E.E.V	E.E.V	E.E.V	E.E.V	E.E.V
AIR FILTER	PRE FILTER	610 x 610	EA	6	9	12	12	12	15
	PRE FILTER	305 x 610	EA	3	3	–	3	7	5
	MEDIUM FILTER	610 x 610	EA	6	9	12	12	12	15
	MEDIUM FILTER	305 x 610	EA	3	3	–	3	7	5
Humidifier	TYPE		SET	vaporized humidifiers or electro-electric poles or steam induction
Drain			A	32	40	40	40	40	50
Exterior dimensions			L	6,800	7,100	7,400	7,600	7,800	8,800
			W	2,300	2,500	2,900	3,300	3,300	4,000
			H	1,900	2,200	2,200	2,200	2,500	2,525

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