Technical Specifications

INTEGRATED HOME COMFOR
T
INTEGRATED HOME COMFORT
Ruud
®
Professional Ultra
™
Combination Boiler
• Space Heating and Hot Water —
Efficient heating combined with continuous
hot water all from one unit for space and
cost savings
• Perfect for Replacing a Boiler —
Compatible with any hyrdonic heat emitting
devices including air handlers
• Saves Space — A single, compact combi
boiler can replace a boiler AND tank water
heater
• Built-in Auto-Feeder — Maintains
hydronic loop pressure automatically between
12-30 psi
• Outdoor Reset Sensor — Tracks outdoor
temperatures and overrides the heating
set point as needed to keep the home
comfortable when weather changes
• Auto Boost Feature
1
— If the thermostat
set point has not been achieved in a
reasonable time, the combi will auto boost
the hydronic loop to reach the desired
temperature more quickly
• M ax Vent Lengths: 100' @ 3", 50' @ 2"
2
— Means more flexible and versatile
installation options
• Vent with Room Air
3
— Save time and
money on installation
• 4.5 GPM at 77°F Rise — for 199,000
BTU model
RUCBH199DVLN
4
& RUCBH180DVLN
4
Indoor Direct Vent Only
18,000-199,000 BTU/h
Natural and LP Gas
Ruud Model Number
RUCBH199DVLN
RUCBH199DVLP
RUCBH180DVLN
RUCBH180DVLP
Gas Input Rate
5
(Heating Mode)
MAX 120,000 BTU/h 100,000 BTU/h
MIN 18,000 BTU/h 18,000 BTU/h
Gas Input Rate
5
(Domestic Hot Water)
MAX 199,000 BTU/h 180,000 BTU/h
MIN 18,000 BTU/h 18,000 BTU/h
AFUE 0.95 0.95
Turndown Ratio (Heating Mode) 6.7:1 5.6:1
Turndown Ratio (DHW) 11:1 10:1
Gallons Per Minute -
GPM (Domestic
Hot Water)
MAX GPM 9.9 GPM 9.0 GPM
45°F Rise 7.7 GPM 7.0 GPM
77°F Rise 4.5 GPM 4.1 GPM
Number of Bathrooms
6
2 - 2.5 2
Temp. Range
Heating Mode 100°F - 180°F
Domestic Hot Water 90°F - 140°F
Type Indoor Direct Vent
Flue System Sealed Combustion Direct Vent or Room Air Intake
Ignition System Direct Electronic Ignition / Automatic Flame Sensing
Burner System Premixed Metal Fiber Burner
Gas Valve System Air ratio valve
Minimum Flow Activation Flow 0.5 GPM
Minimum Continuous Flow Rate 0.4 GPM
Internal Pipe Material STS 304, Copper Tubing (Primary and Secondary)
Water Holding Capacity Under 2 Gallons
Water Pressure
7
MAX DHW150 psi/ Heating 30 psi
MIN DHW 15 psi/ Heating 12 psi
Gas Pressure
Nat. Gas 3.5" WC to 10.5" WC
LP Gas 8.0" WC to 14.0" WC
Materials
Casing Cold Rolled Carbon Steel
Heat Exchanger STS 304 Stainless Steel
Safety Devices
Flame Sensor, Overheat Cut Off Limit Switch,
Gas Leak Detector, Water Leak Detector,
Exhaust Thermistor, Pressure Sensor,
Heating Supply Thermistor
Warranty
Residential – 10-Year Heat Exchanger,
5-Year Parts, 1-Year Labor
Ruud
Model Number
RUCBH199DVLN /
RUCBH180DVLN
Height 28.7"
Width 17.3"
Depth 14.8"
Weight 90 lbs.
Max. Vent Run 2"(50ft) / 3"(100ft)
Venting Materials
Schedule 40 PVC,
CPVC, PP
Power Supply
120V 60Hz
6' power cord included
Max. Power
Consumption
187W (71W + 116W Pump)
for RUCBH199DVLN
180W (64W + 116W Pump)
RUCBH180DVLN
Gas Conn. 3/4"
Water Conn. 3/4"
Glycol Mix
8
Up to 50%
Installation Information
Key Features
1
Auto Boost Feature requires installation of outdoor reset sensor.
2
Up to 50' @ 2" and 100' @ 3"; Maximum equivalent venting lengths:
see Installation Instructions for additional details.
3
Follow the National Fuel Gas Code (ANSI Z223.1 / NFPA 54)
4
For Propane models, replace the N with P when ordering.
5
Gas input (BTU/h) derates at higher than sea level installations.
6
Individual results may vary based on temperature rise demands.
7
DHW water pressure must be greater than the heating system water pressure.
8
Glycol mixture will derate system performance. Use propylene glycol only.
Specifications
Ruud Residential Gas
Combi Boilers
95% AFUE
qualifies for top
rebates across the US
– see local offers
for details
INTEGRATED HOME COMFOR
T
INTEGRATED HOME COMFORT
PRINTED IN U.S.A. 12/18 WP FORM NO. TKR-RUCBH-A