CT80-250
Introduction - Installation & Operation Instructions
│
Odyssey
5
Direct Vent Applications
There are four Odyssey models, CT90-120, certified for installation as a Direct Vent boiler. This balanced flue
system requires a special venting system in order to pressurize and essentially equalize the inlet and outlet
pressure to ensure normal operation. Refer to section “General Venting” and “Specifications” for more details on
Direct Vent applications and termination kits.
Balanced Flue Applications - Models CT90-120 are also certified as Direct Vent boilers
and must be ordered as such. Balance flue systems must use the NTI approved venting
system. Note that the Direct Vent Terminal and Insulated Flex Pipe are sold separately (see Table 7-2 Direct
Vent Kit Components for more details). This “Special Venting System” is designed for pressurized venting with
NTI Direct Vent boilers. The exhaust gases must be piped directly to the outdoors using the vent materials and
rules outlined in these instructions. Failure to follow these instructions will result in serious injury or death.
Table 1-2 Odyssey Boiler Packages (Direct Vent)
BOILER PACKAGE
Burner Kit Contents (Direct Vent)
MODEL
BOILER
PART
NUMBER
B
o
il
er
O
n
ly
J
a
ck
et
Burner
Kit
Direct
Vent
1
B
u
rn
er
B
la
st
T
u
b
e
N
o
zz
le
2
H
y
d
ro
S
ta
t
3
2
5
0
H
y
d
ro
le
v
el
E
le
ct
ro
-W
el
l
T
ri
d
ic
a
to
r
O
D
S
en
so
r
R
el
ie
f
V
a
lv
e
S
u
p
p
ly
T
ee
D
ir
ec
t
V
en
t
K
it
4
CT90
6
CT100
6
CT90.3T9A4
CT80
8
2
0
0
2
BF5.CT
3
81122
0.85
60
o
B
R
ie
ll
o
B
u
rn
er
CT120 CT120.3T9A4 CT120
8
2
0
0
3
BF5.CT
3
81122
0.85
60
o
B
8
4
7
8
7
8
4
7
8
8
8
1
3
4
2
8
3
6
0
4
1
3
7
0
1
8
4
8
2
9
T
ab
le
7
-2
Notes:
1
Boiler manual packaged with the Burner Kit.
2
Nozzle size included in the Burner Kit. See below, “Attention: Nozzle Sizes”.
3
Burner and blast tube comes assembled c/w nozzle specified in this table. Nozzle may need to be changed depending on boiler output.
4
Direct Vent Terminal not included in Kit. Refer to Table 7-2 for a list of components that must be ordered separately.
5
Riello BF5 burners are single line gravity feed. See burner manufacturers’ instructions for more details.
6
Models CT80-100 are no longer offered as they do not meet new minimum efficiency regulations.
Manufacturer’s Instructions - For complete instructions on installation and control
operations, refer to the manufacturer’s instructions included with the Fuel Smart
HydroStat 3250, Burner Package, and Direct Vent Terminal.
Nozzle Sizes - The nozzle sent with each respective boiler burner kit is for the minimum
firing rate specified for that burner. To obtain a different firing rate, replace the factory
supplied nozzle with the appropriate nozzle that meets the desired output. Refer to Table 2-3 in Section 2.0 for
nozzle specifications and performance ratings for Direct Vent boilers.
Intakes/Vents - Failure to keep the Vent and Combustion Air Intake clear of ice, snow,
and other debris may result in property damage, serious injury, or death.
Energy Saving Feature - This boiler is equipped with a feature that saves energy by reducing the
boiler water temperature as the heating load decreases. This feature is equipped with an override
which is provided primarily to permit the use of an external energy management system that serves the same function.
THIS OVERRIDE MUST NOT BE USED UNLESS
AT
LEAST ONE OF THE FOLLOWING
CONDITIONS IS
TRUE :
An external energy management system is installed that reduces the boiler water temperature as the heating load
decreases.
This boiler is not used for any space heating.
This boiler is part of a modular or multiple boiler system having a total input of 300,000 BTU/hr or greater.
This boiler is equipped with a tankless coil.
