P-K SOLIS™
Gas Fired Boiler
Technical Service 1.877.728.5351
Revised: March 15, 2021
Released: March 15, 2021
Patterson-Kelley 2021
All Rights Reserved.
2701000090 P-K SOLIS NURO Installation and
Owners Manual (Rev A).docx
Page 33
SOLIS
™
Category II/IV:
Through-the-roof
SOLIS
™
Category II/IV:
Sidewall
N
OTE
:
For
Category II
installations, ensure the flue venting system is designed to maintain a
slightly negative exhaust pressure between
-0.01” W.C. and
-0.05” W.C.
N
OTE
:
For
Category IV
installations, ensure the flue venting system is designed to maintain a
slightly positive exhaust pressure which
MUST
BE
in the following ranges:
•
+0.01” W.C. and +0.22” W.C. (Direct Vent / Sealed Combustion)
•
+0.01” W.C. and +0.4” W.C. (Exhaust Only)
Acceptable termination fittings:
•
Downward elbow
•
Horizontal tee
•
Velocity cone
(1” x 1” bird screen recommended)
Acceptable termination fittings:
•
Downward elbow
•
Horizontal tee
(1” x 1” bird screen recommended)
Motorized
combustion air
damper
Motorized
combustion air
damper
Minimum flue
vent clearance:
36” above air
intake
Minimum
clearance:
12” from sidewall