Net Efficiencies

CENTRAL HEATING		MODEL HE 85 AAA (T)
INPUT MAX-MIN NETT		kW	23.9 - 11.4
OUTPUT MAX-MIN NETT ADJUSTABLE		kW	23.9 - 11.4
DOMESTIC HOT WATER
INPUT MAX - MIN		kW	26.0 - 13.4
OUTPUT MAX - MIN		kW	25.6 - 13.0
DOMESTIC HOT WATER
FLOW RATE RAISED	30°C At	I/min	12.8 (2.81 gals/min)
6° INLET TEMP	35°C At	I/min	11.0 (2.42 gals/min
EXPANSION VESSEL		I	8/1
MAX CENTRAL HEATING TEMPERATURE		°C	90°
CONNECTION
HEATING FLOW & RETURN COMPRESSION		mm	22
GAS CONNECTION			1/2 BSP
DOMESTIC SUPPLY (COLD).COMPRESSION		mm	15
DOMESTIC SUPPLY (HOT) COPPER		mm	15
CONDENSING PIPE 3/4 PUSH FIT OVERFLOW PIPE
FLUE SIZE		mm	100
ELECTRICAL MAINS SUPPLY			240v 50 hz FUSED 3 amp
SEDBUK	NAT GAS	%	90.1 BAND A
	LPG	%	92.6 BAND A

Flue Options

Model HE 85AAA (T) 100mm Concentric Flue System

PART	DESCRIPTION	BARCODE	RAVENHEAT PART NO.
1 + 3	Vertical Flue terminal kit + straight flue header	5060022141995 + 5060022141186	N5094130 + 5094110B
2	90 deg boiler bend	5060022141209	CSIFB
3	Straight flue header	5060022141186	5094110B
4	1000mm flue extension	5060022141339	NFE
5	External flue collar		Supplied with No.6
6	Horizontal flue kit complete with boiler bend	5060022141230	CSIFKB
7	45 deg in line bend	5060022141247	N45FBI
7	90 deg in line bend	5060022141315	N90FBI
9	Vertical lead flashing sleeve - pitched roof	5060022141063	0019TEG06005/0
10	Plume kit	5060022143142	1019TER11010/0

The above flue arrangements should fit most requirements however, alternative systems (twin or 125mm) are available for longer flue distances.

The HE 85 AAA (T) can be fitted with a standard (concentric) flue duct or a twin (eccentric) flue duct, which can be installed either vertical or horizontal, depending on the customers requirements.
Normally supplied with a 1 metre standard flue kit, it can be extended to 2.5 metres if required. Eccentric flue ducting is ideal for covering long distances and with a special Ravenheat connector can be extended up to 23 metres air intake/exhaust.

Operating Scheme

 

1 Heat exchanger 2 Heat exchanger for tap water 3 Burner 5 Flue restriction ring 6 Condensing heat exchanger 7 Electronic ignition 8 Condensing trap 9 Ignition electrode 12 Modulating gas valve 15 Heating control potentiometer thermostat 16 Hot water control potentiometer thermostat 17 Water pressure switch 18 Overheat cut-off thermostat

20 Gas service cock 21 Compression ball valve 22 Condensate sump 23 Safety release system 24 Three way valve 25 Flow regulator 26 Auto air vent valve 27 Pressure switch giving priority DHW 28 Air pressure switch 29 Circulating pump 30 Water pressure gauge 36 Fan 37 Expansion tank 38 Sealed chamber

 

Overall Dimensions

 

	A	B	C	D	E
HE 85A (T)	422	450	850	360	200