1
TECHNICAL SPECIFICATIONS
2
HALSTEAD Finest
2.2
PERFORMANCE DATA
Central Max 23.45 (80,000) 26.74 (91,250) 29.7 (101,300)
Heating Min. 11 (37,500) 12.95 (44,200) 14.39 (49,100)
FACTORY SET
DHW Max 26.38 (90,000) 29.84 (101,800) 33.14 (113,100) 11.6 (4.6)
Min. 8.8 (30,000) 11.05 (37,700) 12.28 (41,900) 1.3 (0.5)
MODE RATE OUTPUT INPUT INPUT BURNER
Net Gross PRESSURE
kw (Btu/h) kw (Btu/h) kw (Btu/h) mbar (in.wg)
1
GENERAL
Central
Heating
DHW
Max. gas rate (after 10 mins operation i.e. hot) 2.8 m
3
/h (99 ft
3
/h)
Min. domestic hot water flow rate 2.8 l/min (0.6 gpm)
Design domestic hot water performance 11.01/min (2.4 gpm) raised 35°C
Max. domestic hot water temperature 73+/-2°C
Max. mains water inlet pressure 10 bar (145 psi)
Min. mains water inlet pressure for operation 0.3 bar (4.4 psi)
Min. mains water inlet pressure for max heat output 1.0 bar (14.6 psi)
Max. gas rate (after 10 mins operation i.e. hot) 3.16m
3
/h (112ft
3
/h)
HALSTEAD Finest Gold
Central Max 23.45 (80,000) 26.74 (91,250) 29.7 (101,300)
Heating Min. 11 (37,500) 12.95 (44,200) 14.39 (49,100)
FACTORY SET
DHW Max 30 (102,400) 33.78 (115,280) 37.52 (128,000) 15 (6)
Min. 8.8 (30,000) 11.06 (37,750) 12.28 (41,900) 1.3 (0.5)
MODE RATE OUTPUT INPUT INPUT BURNER
Net Gross PRESSURE
kw (Btu/h) kw (Btu/h) kw (Btu/h) mbar (in.wg)
Central
Heating
D H W
Max. gas rate (after 10 mins operation i.e. hot) 2.8 m
3
/h (99 ft
3
/h)
Min. domestic hot water flow rate 2.8 l/min (0.6 gpm)
Design domestic hot water performance 13.01 l/min (2.9 gpm) raised 35°C
Max. domestic hot water temperature 73+/-2°C
Max. mains water inlet pressure 10 bar (145 psi)
Min. mains water inlet pressure for operation 0.3 bar (4.4 psi)
Min. mains water inlet pressure for max heat output 1.4 bar (20.4 psi)
Max. gas rate (after 10 mins operation i.e. hot) 3.6 m
3
/h (127 ft
3
/h)
GENERAL
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100mm DIA.
326mm
200mm
225mm
760mm
450mm
900mm
95mm
.
.
.
1(a)
200mm
5mm
200mm
5mm
SEE
NOTE
•
•
•
•
•
•
•
•
•
•
HALSTEAD Finest Propane
Central Max 23.45 (80,000) 26.59 (90,700) 28.9 (98,600) 9 (3.6)
Heating Min. 11 (37,500) 12.95 (44,200) 14.08 (48,050) 1.9 (0.8)
DHW Max 26.38 (90,000) 29.64 (101,150) 32.22 (109,950) 11.2 (4.5)
Min. 8.8 (30,000) 10.98 (37,500) 11.93 (40,700) 1.2 (0.5)
As natural gas appliance except where stated below:
MODE RATE OUTPUT INPUT INPUT BURNER
Net Gross PRESSURE
kw (Btu/h) kw (Btu/h) kw (Btu/h) mbar (in.wg)
Central
Heating
D H W
Max. gas rate (after 10 mins operation i.e. hot) 2.0 kg/hr.
Max. gas rate (after 10 mins operation i.e. hot) 2.3 kg/hr.
GENERAL
The appliances are Certified to comply with the requirements of
prEN 483 and EN 625 for use in GB and IE (Great Britain and
Ireland) using the following gas categories:
Finest, Finest Gold: I
2H
(G20 with a governed gas supply at 20
mbar (8 in.wg) inlet pressure)
Finest Propane I
3P
(G31 [Propane] with a regulated gas supply at
37 mbar (14.9 in.wg) inlet pressure)
The appliance classification (as defined in prEN 483) may be any of
the following depending on the chosen flue option: C12, C22, or C32.
2.1
GAS CATEGORIES AND
APPLIANCE CLASSIFICATION
2.3
MINIMUM CLEARANCES
Main burner injector 4.86mm dia (G20), 3.72mm dia (G31)
Total water capacity 1 litre
Minimum CH system pressure (static head) - Cold 0.5 bar
Maximum CH system pressure (static head) - Hot 2.5 bar
Empty weight 45.5kg
Max lift weight 30.0kg
Total weight (full) 46.5kg
Electrical supply 230V - 50 Hz Fuse at 3A
Internal fuses
F1-2Amp HRC (Ceramic) / F2 -1Amp GQB(Glass)
Maximum power consumption 160W
Max CH flow temperature 85°C 185°F
Integral expansion vessel capacity 7 ltr. capacity
Minimum clearances for installing and servicing the appliance refer to Fig. 1(b) below.
Gas Rc1/2
Central heating flow 22mm compression
Central heating return 22mm compression
Domestic water inlet 15mm compression
Domestic water outlet 15mm compression
Pressure relief valve outlet 15mm tail
CONNECTION SIZES
2.4
GENERAL SPECIFICATIONS
1(b)
NOTE:
10mm for normal
operation 450mm for
installation and servicing
OVERALL DIMENSIONS AND MINIMUM CLEARANCES
2.5
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