V
V
V
VI
I
I
IT
T
T
TO
O
O
OC
C
C
CR
R
R
RO
O
O
OS
S
S
SS
S
S
SA
A
A
AL
L
L
L 3
3
3
30
0
0
00
0
0
0
Gas-fired condensing boiler
638 to 3361 MBH / 187 to 985 kW
Product may not be exactly as illustrated.
Vitocrossal 300, CT3 boiler with
Vitotronic NR2 control
Technical Data Manual
Model Nos. and pricing: see Price List
Vitocrossal 300
CT3 Series
High efficiency, gas-fired condensing boiler
for natural gas or liquid propane
with vertical Inox-Crossal heat exchanger surfaces
of corrosion-resistant stainless steel.
For operation without low limit on boiler return water
temperature.
For closed loop hot water heating systems with maximum
supply water temperatures of 210°F / 99°C for a
maximum operating pressure of 30 psig.
Heating input: 638 to 3361 MBH
187 to 985 kW
5285 871 v1.9 11/2012
