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Screw type ground source heat pump

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Hot Line：400-0530-636

Tel：+86-530-7355311

E-mail：zhangteng@c-jsec.com

heguowaimao@163.com

Fax：+86-530-7355311

Add：Heze City, Shandong Province, China

Screw type ground source heat pump

Product Description

　Features

　　CTEDB series of ground source heat pump products are mature stereotyped products developed by Shandong Zhongkeneng Artificial Environment Co.,Ltd.on the basis of fully absorbing the latest development technology in the international and domestic refrigeration and air conditioning field.The unit is designed and manufactured strictly in accordance with international industry standards.The unit uses high-quality,high-reliability compressors,refrigerant system control components and computer control components produced by world-renowned manufacturers.

Application

　 1.The temperature range of the water source used by the unit is wide:10～35℃

　 2.It can provide 7℃or 50℃air-conditioning hot and cold water,as well as domestic hot water.

　 3.It can also be used as a heat source for urban area heating

It is widely used in office buildings, hotels, hospitals, entertainment places, factories, residences and other comfortable central air conditioning systems.

　Optimized design

　　 ■ Designed in full compliance with international standards and combined with China's actual conditions.

　　■ The technical idea of"large temperature difference and small flow"can save users the precious water resources to the maximum.At the same time reduce operating costs.

　　■ Computer-assisted optimal design ensures that the unit is in the best operating state under any operating conditions.

　　1、Separate the strong and weak electric control systems to ensure maximum safety

　　2、High-pressure elastic system design,greatly extending product life

　　3、Precision rotor machining technology,efficient and robust moving parts

　　4、Multiple energy extraction methods,make full use of customer resources

　　5、The optional heat recovery design truly reflects the multi-purpose use of the machine;while cooling,the domestic hot water is made to achieve the purpose of value-added enjoyment.

　Good quality

　　1、The original imported compressor has the most advanced twin-screw structure,which has extremely small unbalanced rotation force and extremely low vibration and noise.Partial load operation is balanced and high efficiency.

　　2、Adopting the most advanced DAE/DAC high-efficiency heat transfer tubes,multiple spiral thin ribs and spiral protrusions on the heat transfer surface,the heat transfer coefficient and heat transfer capacity are greatly improved.

　　3、The refrigeration system accessories used in the unit are all selected from brand-name manufacturers,such as detachable drying filters,external balanced thermal expansion valves,liquid supply solenoid valves,sight glasses,high and low pressure controllers,etc.to ensure that the unit has an excellent level of performance.

　Simple and reliable operation

　　 1、Full computer control and backup manual operating system。

　　2、Perfect computer control and multiple protections make the whole machine safe and reliable.

　　3、Adopt advanced high-speed embedded microprocessor,which runs fast.

　　4、The short message function control is reserved,and the user can easily control the unit through the short message of the mobile phone.

　　5、PC monitoring system is reserved.Users can implement PC monitoring through converter and adding PC software.

　　6、With self-diagnostic capabilities,hardware faults can be automatically eliminated,and the software uses redundancy,trap technology and hardware WATCHDOG to improve the overall anti-interference ability.

　　7、Adopting advanced touch technology,its touch screen has good touchability,and the life of continuous touch at each point is more than 1 million times,which guarantees the life of the whole machine

　　8、It adopts independent power supply mode to realize power supply isolation and strong anti-interference.

　　9、External interlocking function can be realized to ensure the safe operation of the unit.

　Parameters

Technical Parameters of Screw Type Ground Source Heat Pump（1）
Model		CTEDB	230	280	330	380	420	460	540	600	660	760	860	920	1020
Cooling capacity		kW	230	280	330	380	418	460	540	600	660	760	860	918	1020
Heating capacity		kW	258	314	370	426	468	515	605	672	739	851	963	1028	1142
Power supply			three phase 380V 50Hz
Energy control			25%～100%
Compressor	Type		Semi-hermetic screw compressor
	Number of compressors	台	1	1	1	1	1	1	1	1	1	1	1	1	1
	Cooling input power	kW	44	54	63	73	80	88	104	115	125	143	162	177	196
	Heating input power	kW	58	70	83	95	105	115	135	150	164	189	214	230	256
	Maximum safe current (Wiring)	A	119	153	185	229	238	258	295	302	375	383	431	436	486
Refrigerant	Amount（R22）	kg	41	50	59	68	74	82	96	107	117	135	153	163	181
Evaporator	Type		Shell and tube heat exchanger
	Water side resistance	kPa	45	45	45	46	46	46	47	46	46	46	46	47	46
	Fouling factor	m2℃/kW	0.086
	Tube specifications	mm	DN100	DN100	DN100	DN100	DN100	DN100	DN125	DN125	DN125	DN125	DN125	DN150	DN150
	Cold water flow during refrigeration conditions	m3/h	40	48	57	65	72	79	93	103	113	131	148	158	175
	Cold water flow in heating conditions	m3/h	21	26	31	36	39	43	50	56	62	71	81	86	95
Condenser	Type		Shell and tube heat exchanger
	Water side resistance	kPa	45	45	45	45	46	46	46	47	47	46	46	46	46
	Fouling factor	m2℃/kW	0.086
	Tube specifications	mm	DN100	DN100	DN100	DN100	DN100	DN100	DN125	DN125	DN125	DN125	DN125	DN150	DN150
	Cold water flow during refrigeration conditions	m3/h	21	26	31	35	39	43	50	56	61	71	80	86	95
	Cold water flow in heating conditions	m3/h	44	54	64	73	81	89	104	116	127	146	166	177	196
Dimensions	Length	mm	2800	2800	3150	3150	3200	3200	3635	3635	3635	3720	3720	3860	4360
	Wideth	mm	1050	1050	1100	1100	1200	1200	1310	1310	1310	1415	1415	1395	1395
	Height	mm	1450	1450	1500	1500	1630	1630	1810	1810	1810	2055	2055	2020	2020
Unit weight	Standard type	kg	1800	1900	2000	2200	2640	2850	3250	3550	3750	3800	3850	3890	4210
Unit weight	Noise-isolating Type	kg	1860	1970	2100	2320	2710	2980	3325	3630	3835	3890	3945	3990	4315
Noise	Standard type	dB（A）	69	69	70	70	70	72	72	73	73	73	73	74	74
Noise	Noise-isolating Type	dB（A）	60	60	61	61	61	61	61	62	64	64	65	66	66
Note: Standard refrigeration conditions of the unit: the temperature of the inlet and outlet water of the condenser (18/29 ℃), and the temperature of the inlet and outlet water of the evaporator (12/7 ℃); 2) Standard heating conditions of the unit: the temperature of the inlet and outlet of the condenser (40/45 ℃), and the temperature of the inlet and outlet of the evaporator (15/7 ℃); 3) The specifications listed in this table are subject to change without notice.

Technical Parameters of Screw Type Ground Source Heat Pump（2）
Model		CTEDB	1200	1250	1320	1430	1610	1800	2160	2450	2570	2720	2860	3220	3580
Cooling capacity		kW	1198	1250	1320	1430	1610	1798	2160	2450	2570	2720	2860	3220	3580
Heating capacity		kW	1342	1400	1478	1602	1803	2014	2376	2695	2827	2992	3146	3542	3938
Power supply			three phase 380V 50Hz
Energy control			12.5%～100%						6.25%～100%
Compressor	Type		Semi-hermetic screw compressor
	Number of compressors	台	2	2	2	2	2	2	4	4	4	4	4	4	4
	Cooling input power	kW	230	240	249	270	304	339	415	471	485	513	540	608	675
	Heating input power	kW	300	313	329	356	401	448	532	603	628	665	699	787	875
	Maximum safe current (Wiring)	A	2*302	2*302	2*375	2*379	2*383	2*436	4*302	4*302	4*375	4*375	4*379	4*383	4*436
Refrigerant	Amount（R22）	kg	213	222	235	254	286	320	384	436	457	484	508	572	636
Evaporator	Type		Shell and tube heat exchanger
	Water side resistance	kPa	47	46	46	46	46	46	50	50	50	50	50	50	50
	Fouling factor	m2℃/kW	0.086
	Tube specifications	mm	DN150	DN150	DN200	DN200	DN200	DN200	2-DN150	2-DN150	2-DN200	2-DN200	2-DN200	2-DN200	2-DN200
	Cold water flow during refrigeration conditions	m3/h	206	215	227	246	277	309	371	421	442	468	492	554	616
	Cold water flow in heating conditions	m3/h	112	117	124	134	151	168	198	225	236	250	263	296	329
Condenser	Type		Shell and tube heat exchanger
	Water side resistance	kPa	46	47	46	46	48	48	52	52	52	52	52	52	52
	Fouling factor	m2℃/kW	0.086
	Tube specifications	mm	DN150	DN150	DN200	DN200	DN200	DN200	2-DN150	2-DN150	2-DN200	2-DN200	2-DN200	2-DN200	2-DN200
	Cold water flow during refrigeration conditions	m3/h	112	117	123	133	150	167	201	228	239	253	266	299	333
	Cold water flow in heating conditions	m3/h	231	241	254	275	310	346	409	463	486	515	541	609	677
Dimensions	Length	mm	4360	4370	4380	4545	4630	4645	4600	4600	4650	4650	4700	4750	4850
	Wideth	mm	1395	1430	1460	1480	1510	1510	2290	2350	2350	2400	2400	2400	2400
	Height	mm	2020	2020	2035	2050	2175	2175	2315	2355	2365	2495	2500	2555	2575
Unit weight	Standard type	kg	4740	5600	6600	6800	7000	8000	8800	9500	11000	11800	12800	13000	15000
Unit weight	Noise-isolating Type	kg	4850	5715	6720	6925	7130	8135	8940	9645	11150	11955	12960	13165	15170
Noise	Standard type	dB（A）	74	75	75	76	78	81	81	81	81	81	81	83	83
Noise	Noise-isolating Type	dB（A）	67	67	68	68	69	71	71	72	73	73	74	76	76
Note: Standard refrigeration conditions of the unit: the temperature of the inlet and outlet water of the condenser (18/29 ℃), and the temperature of the inlet and outlet water of the evaporator (12/7 ℃); 2) Standard heating conditions of the unit: the temperature of the inlet and outlet of the condenser (40/45 ℃), and the temperature of the inlet and outlet of the evaporator (15/7 ℃); 3) The specifications listed in this table are subject to change without notice.