Yazaki · Absorption chillers

Yazaki WFC-SC

Hot water-driven single-effect absorption chillers

Cooling capacity: 17.6 – 176 kW
Efficiency: COP: 0.7
Energy: Hot water

Ask an engineer

Technical data

Key data

Cooling capacity: 17.6 – 176 kW
Rating conditions: CHW 12.5/7 ºC
CW 31/35 ºC
HW 88/83 ºC
Energy: Hot water
Output temperature: Chilled water at 7 ºC
Refrigerant: Water (H₂O)
Efficiency: COP: 0.7

Main advantages

Chilled water produced from hot water
Uses waste heat and renewable energy
Minimal electricity consumption
High reliability and long service life
Quiet operation

Models

Yazaki WFC-SC models

Technical data from the manufacturer's data sheet.

Yazaki WFC SC
Model	Unit	WFC SC5	WFC SC10	WFC SC20	WFC SC30	WFC SC50
GENERAL DATA
Version / application		Hot water-driven absorption chiller (single-effect H₂O / LiBr)
Installation location		Indoor / outdoor (weatherproof casing)
Refrigerant / absorbent		Water (R718) / Lithium bromide (LiBr)
Capacity control mode		On/off
Chilled water inlet / outlet temperature	°C	12.5 / 7.0
Cooling water inlet / outlet temperature (tower)	°C	31.0 / 35.0
Generator hot water temperature range	°C	70.0 to 95.0 (nominal: 88.0 / 83.0)
Maximum allowable static pressure (all circuits)	kPa	588
Maximum allowable static pressure (reference)	bar(g)	5.88
Fouling factor	m²·K/kW	0.086
CAPACITY AND CHILLED WATER CIRCUIT (EVAPORATOR)
Nominal cooling capacity	kW	17.6	35.2	70.3	105	176
Chilled water flow	l/s	0.77	1.53	3.06	4.58	7.64
Chilled water flow (reference)	m³/h	2.77	5.51	11.02	16.49	27.5
Evaporator pressure drop	kPa	56	51	59.8	60.8	35.9
Water volume	l	8	17	47	73	120
Chilled water tube section	DN	DN-32	DN-40	DN-50	DN-65	DN-80
COOLING WATER CIRCUIT (ABSORBER / CONDENSER)
Heat to be rejected in cooling water	kW	42.7	85.4	171	256	428
Cooling water flow (tower)	l/s	2.5	5.1	10.2	15.3	25.6
Cooling water flow (reference)	m³/h	9	18.36	36.72	55.08	92.16
Absorber / condenser pressure drop	kPa	41	85.3	45.3	46.4	37.4
Water volume	l	37	66	125	194	335
Cooling water tube section	DN	DN-40	DN-50	DN-65	DN-80	DN-80
HOT WATER CIRCUIT (GENERATOR)
Generator heat input	kW	25.1	50.2	100	151	252
Hot water flow	l/s	1.2	2.4	4.8	7.2	12
Hot water flow (reference)	m³/h	4.32	8.64	17.28	25.92	43.2
Generator pressure drop	kPa	88	90.4	46.4	60.4	86.7
Water volume	l	10	21	54	84	170
Hot water tube section	DN	DN-40	DN-50	DN-65	DN-80	DN-80
ELECTRICAL DATA AND ACOUSTICS
Supply voltage	V / Hz	Single-phase 220V AC, 50Hz
Nominal electrical consumption	W	48	210	260	310	550
Rated current	A	0.23	0.43	0.92	1.25	4.74
Sound power level	dB(A)	46	49	52	54	58
DIMENSIONS, WEIGHTS AND CASING
Width	mm	594	760	1,060	1,380	1,780
Depth	mm	744	970	1,220	1,520	1,960
Height (including mounting plates)	mm	1,736	1,920	2,030	2,065	2,135
Empty weight	kg	365	500	930	1,450	2,400
Operating weight (filled)	kg	600	1,155	1,800	3,025	4,800
Casing and exterior finish		Galvanised sheet steel, hot powder-coated in metallic silver