2
Technical Data
6
2.1 Boiler Technical Data – Vortex Eco Wall-hung Boilers
Kitchen/Utility
Kitchen/Utility System
Model
12/16
16/21
12/16
16/21
Water content
Litres
11
11
11
11
Gal
2.4
2.4
2.4
2.4
Weight - complete boiler (dry)
kg
85.7
92.2
85.7
92.2
lbs
189
203
189
203
Weight - boiler shell only (dry)*
kg
56.0
56.0
56.0
56.0
lbs
123
123
123
123
Max heat input (kerosene)
kW
17.0
21.0
17.0
21.0
Btu/h
58,000
71,650
58,000
71,650
Flow connection
22mm - push-fit Tectite connector (supplied fitted)
Return connection
22mm - push-fit Tectite connector (supplied fitted)
Min. flow rate
∆
T=10°C
l/h
1420
1740
1420
1740
Min. flow rate
∆
T=20°C
l/h
710
870
710
870
Condense connection
Accepts 21.5mm Ø polypropylene overflow pipe
Flue diameter (conventional flue)
mm
100mm
Waterside resistance
∆
T=10°C
mbar
28.5
Waterside resistance
∆
T=20°C
mbar
10
Maximum static head
m
28
Minimum circulating head
m
1
Boiler thermostat range
°C
65 to 75
Limit (safety) stat cut-off temperature
°C
111 ± 3
Max casing temperature
°C
less than 50
Electricity supply
230V ~ 50Hz Fused at 5 Amp
Motor power
Watts
75
Starting current
Amps
2.25
Running current
Amps
0.85
Oil connections
1
/
4
" Male BSP
Conventional flue draught
N/m²
Min - 8.7
in.wg
Max - 37
Max operating press - sealed system
bar
2.5
Max operating pressure - open system
bar
2.5
* Weight of shell - without baffles & clean-out door 45.7kg
12/16 & 16/21
Heating system pressure (cold)
0.5 bar Min - 1.0 bar Max
Pressure relief valve operating pressure
2.5 bar
Expansion vessel size
8 litres
Max heating system volume (including boiler)*
85 litres
Cold mains connection (for filling loop)
15mm compression (provided)
Pressure relief valve discharge connection
15mm compression (provided)
* Based on vessel charge and system pressure cold fill pressure of 0.5 bar
2.2 Sealed System Data – Kitchen/Utility System Models
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