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1.
General Information
The Riva Plus Combi is a high effi ciency condensing, wall mounted gas boiler which provides
central heat. The boiler features a gas valve which modulates the energy input from 49476
BTU/h to 116008 BTU/h. The boiler is shipped fully assembled with the components listed on
page 11. All units are pressure and combustion tested at the factory prior to shipping.
Key Features:
•
Wall mountable - saving valuable fl oor
space.
•
Several fl ue options available
•
Electronic spark ignition
•
Safety fl ow switch - positioned on the
main circuit, which monitors the fl ow and
protects the main heat exchanger from
thermal shock should there be a lack of
water in the system.
•
Frost protection - contains an integral frost
protection system to prevent frost dam-
age which can occur in areas susceptible
to very cold weather conditions.
2.
Technical Information (M135.30CM)
GENERAL
Height
Width
Depth
Weight
ELECTRICAL
Voltage
Frequency
Current
Power consumption
8
RIVA PLUS COMBI MANUAL
in
31.6
in
15.7
in
13.8
lb
109.5
V
120
Hz
60
A
1.6
W
180
•
Boiler operation recognition system -
should the boiler not be used for longer
than 24 hours, it then performs a con-
trolled system test to ensuring the motor-
ized components within the boiler do not
become inoperable due to lack of use.
•
Gas valve modulation - the gas input
modulates based off central heating tem-
perature to within ± 2 ºF
•
Diagnostic information system equipped
with three LED diagnostic lights for quick
error assessment.
INJECTORS
Natural
Propane
CENTRAL HEATING
Maximum working temp.
Temp. Regulation range*
Maximum pressure
Minimum pressure
Max head loss (at 4.4 GPM)
*At the minimum useful output
No.
Size
14
130
14
89
°F
185
°F
100-176
psi
30.0
psi
4.35
ft
8.25
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