Worcester 350 Combi User Manual

3. Technical Data
T ABLE 2
F
LU E DETAILS
Th e D at a Pl at e is fix ed to the control box casing.
Hori
zontal Flue (Side or Rear)
mm
i nches
TABLE 1
W
all Hole Dia meter
125
5.0
NOMINAL BOILER RATINGS (1 o minutes after lighting)
Wall Hole Diam eter (using internal fitting kit)
1
50
6.0
Outpu t
Inpu t
Burner Setting
G as Rate
Pressure
Standard Flue - Mini mum Length
100
4.0
Standard Flue - Maximum Length
1000
39.3
kW
Btu /h
kW Btu /h mbar . in. wg. m
3
/h ft
3
/h
Extended Flue - Maximum Length
2 00 0 78.7
9.0 30 , 700
12.68
43 , 200 1.3
0. 52
1. 19
41 . 98
T ABL E 3
25 .0 85 , 300
31.65
108 , 000
7.8
3.12
2. 97 104 .8
AVAILAB LE PUMP HEAD
35 . 17
120 , 000 4 3.96 150 , 000
1 4.2 5. 68
4. 12 1 45 .5
Bo il er Outpu t
He
ad Min . Flow Ra te
Tem p. ris e across
kW Btu /h
feet litres /min ga l/min
ce nt ral hea tin g
me tre s
flo w and r eturn
9.0 30,700 4.70 15 .23
11 .7 3
2.58
1 5. 0 51 , 200 2.65 8.61
19.54
4.30
11 °( (20° F)
25 .0 85,300 2. 08 6.76 2 1. 57 4 .7 5 W C( 29 'F)
TABLE4
SPECIFICATIONS
CENTRAL HEA TING FLOW FITTING 22 mm Compression
CE NTRA L HEATI NG RETUR N FITTIN G 22 mm Compression
COLD WA TER MA IN S INLET FmiNG 1 5 mm Compression
DOMESTIC HOT W ATE R OUTLET FI TTI NG
15
mm Compression
G AS INLET CO NNECfi ON
Rc3 /4
PRESSURE RELIEF VALVE DISCHARGE FITTING 1 5 mm Compression
OVERA LL APPLIANCE HE I GHT (including flue bend) 925 mm (36.4 in.)
CA SI NG H EIG HT 900 mm (35.4 in.)
CA S JN GWIIJfH 500 mm (19.7 in.)
CA SING DE PT H 310 mm (12.2 in.)
D
RY WEIGHT 67 kg (148 lb .)
MAXI M UM IN STALLATION WEIGHT 60 kg (1 32 lb .)
P AC KA GED WEIGHT
72 kg (159lb.)
TABLE 5
S PE CIFICA TI ON S
PRIMARY W ATER CAPACITY 3 li tres (0 .66 gall s.)
M AXI MUM COLD SUPP LY PRESSU RE
10
bar (150 ps i)
MINI MUM C OLD SU PPLY PRESSURE ( WOR K IN G) FOR MAXIMU M HOT WATER FLO W 1 .3 bar (20.0 ps i)
M INIMUM COLD S UPPLY PRESSURE (WO RKING) TO OPERATE THE APPLIANCE
0.8 bar (1 2 psi)
MAXIM UM CENTRAL HEATING FLOW TEMPERATURE
Nominally 82°C (180° F)
MAXI M UM HEAT I NG SYSTEM PRESSURE
1 .5 bar (2 2 p.s .i.)
MIM IM UM H EAT ING SY S TEM PRESS U RE 0.55 bar (8 p.s .i.)
OUT P UT TO DOM ES TIC HOT W ATER
Modulating 9.0- 35.17 kW
(30,700- 120 ,000 Btu/ h)
O UTPUT TO CENTRAL HEATI NG
Modulating 9.0- 25.0
kW
(30,7 00 - 85,300 Bt u/ h)
MAXI M UM D OM ESTIC HOT WATER FLO W RATE FROM THE APPLIANCE Nominally 12.5 litres/ min ( ± 15 %)
(2.8 gallons/ min)
EQ UIVALE NT DOM ESTIC HOT WATER F LO W RATE TO GIVE A TEMPERATURE RISE Nomi na ll y 14.4litres/ min ( ± 15%)
OF 35°C
(3 .22 gallons/ min)
4

Worcester 350 Combi Specifications

General

Brand	Worcester
Model	350 Combi
Category	Boiler
Language	English