DORCHESTER DR-FC 25, Installation, Commissioning And Maintenance Instructions

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Technical specifications
Instruction Manual DR-FC 21
is
R Height of drain valve (mm) 75 75 75 75
S Height of T&P valve (mm) 890 1415 1415 1415
W Height of condensation drainage (mm) 110 110 110 110
X Height of air supply connection (mm) 1205 1730 1730 1730
1 Cold water supply connection R 1½ (external)
2 Hot water outlet connection R 1½ (external)
3 Gas control connection Rp ¾ (internal)
4 Drain valve connection (external) ¾”
5 T&P valve connection (internal) ¾” NPT 1 - 11.5 NPT
6 Dimensions cleaning and inspection opening
(mm)
95 x 70
7 Condensation drainage connection (internal) Ø 40 mm Rp 1 Rp 1 Rp 1
Table 3.4 General and electrical data
DESCRIPTION Unit DR-FC 25 DR-FC 30 DR-FC 45 DR-FC 60
Capacity litres 227 386 386 386
Empty weight kg 175 220 220 220
Maximum working pressure bar 8 8 8 8
Maximum working pressure
unvented
bar 5.5 5.5 5.5 5.5
Nominal working pressure
unvented
bar 3.5 3.5 3.5 3.5
Maximum temperature control
thermostat
°C 80 80 80 80
Number of anodes - 4 4 4 4
Fan rotational speed at ignition rpm 4500 4500 4500 4500
Working speed of fan rpm 5000 5400 6000 6660
Diameter of air restrictor mm 23.0 23.0 28.0 29.0
Heating time
Δ
T = 45
o
C minutes 22 35 24 19
Electrical power consumption W 275
Supply voltage VAC 230 (-15% +10%)
Mains frequency Hz 50 (±1 Hz)
IP class - 30 30 30 30
Table 3.3 Dimensions
Dime
nsion Description DR-FC 25 DR-FC 30 DR-FC 45 DR-FC 60