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www.rinnai.us • © 2011 Rinnai America Corporation • [email protected] TANKLESS WATER HEATING TECHNOLOGY Commercial Laundry Applications
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www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
TANKLESS WATER HEATING TECHNOLOGYCommercial Laundry Applications
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Why tankless water heaters?
Building a case for tankless:
The key factors that are important:
Energy Efficiency Unlimited Hot Water Cost – Capital & Operating Commercial vs. Residential ROI Sizing & Piping Redundancy Code Alert Modulation ULNOx Lifespan & Warranty
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Rinnai’s Global Presence
• Based in Nagoya, Japan
• Established in 1920
• 7000 employees worldwide
• Operates in over 43 countries
RINNAI GLOBAL HEADQUARTERS
• Worldwide Leader
• 2010 turnover: $3+ Billion
RINNAI’S GLOBAL PRESENCE
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Rinnai North America
North American Headquarters: Peachtree City, GA
• Over 200 direct employees & representatives
RINNAI AMERICA HEADQUARTERS
• Rinnai NA has its own CSA certified testing laboratory
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Rinnai America’s Heating Solutions
Non-Condensing Tankless Water Heaters
EnergySaver® Direct Vent Furnaces
Hydronic Furnaces Commercial Cooking products
Condensing Hydronic Boilers
Condensing Tankless Water Heaters
Rinnai North America Products
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Basic Requirements
Gas Delivery pressures range from: 5” wc – 10.5” wc for natural gas 8” wc – 13.5” wc for propane
Water pressures requirements: 20 psig – 150 psig (50 psi
recommended) Hot & Cold water supply lines to be
minimum ¾” piping.
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
1. Water flow begins
2. Ignition Sequence
3. Normal Operation
4. Shut-down Sequence
5. Standby Mode
PC
B /
Su
rge
P
rote
cto
r
Water Flow Sensor
Combustion Fan
SV3
SV4
SV0 or SV Main
Modulating Gas Valve/POV
SV1
Water flowcontrol valve
Out goingTemperatureThermistor
Incoming Air Exhaust
Bypass
Sequence of Operation
IgniterFR 2
FR 1
SV2
Co
nde
nsat
e T
rap
Secondary Heat ExchangerPrimary Heat
Exchanger
Heat Exchanger Thermistor
Burner Sensor
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Types of Applications
RESIDENTIAL
APARTMENTS/CONDOS
HOUSING AUTHORITES
FOODSERVICE
HOSPITALITY
HEALTHCARE
SCHOOLS
GOVERNMENT / MILITARY
CAR WASH
LAUNDROMATS
HAIR SALONS
FITNESS CENTERS
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
THE BASICS
Four important factors when sizing tankless units:
Incoming ground water temperature
Hot water demand
Altitude
Gas line size
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected] ∆T Temperature Rise (°F)
Wa
ter
Flo
w
(gp
m)
Understanding Maximum Flow Rate
EXAMPLE (from previous page)
Incoming water = 57° Rinnai Set-Point temperature = 120°
Subtract the incoming ground water temperature from the water heater’s set temperature for ∆T 120° - 57° = 63
The maximum GPM flow rate for any given ∆T can be found at the intersecting points along each model’s specific flow curve
A GPM flow test from the temperature controller can verify each unit’s performance
RC98i/e
Flow Curve
Flow curves of
each model
are listed in
each
installation
manual
63
If incoming water is 57° and requested temperature is 120°, ∆T is
63° and gpm flow rate is 6.0 gpm
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
RC Series Maximum Flow Curves
RC98i/e
RC80i/e
Models RC98 RC80
Max. Btu 199,000 157,000
T(°F) GPM GPM
140 2.7 2.1135 2.8 2.2130 2.9 2.3125 3.0 2.4120 3.2 2.5115 3.3 2.6110 3.4 2.7105 3.6 2.8100 3.8 3.095 4.0 3.190 4.2 3.385 4.4 3.580 4.7 3.775 5.0 4.070 5.4 4.365 5.8 4.660 6.3 5.055 6.9 5.450 7.6 6.045 8.4 6.640 9.5 7.5≤35 9.8 8.0
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SIZING METHODS – Definitions
Four methods used to sized tankless units:
FLOW RATE (GPM)
GPH REQUIREMENTS (GPH)
WATER SUPPLY FIXTURE UNITS (WSFU)
TANK WATER HEATER REPLACEMENTS (BTU)
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Vent Termination Requirements
36” (.91 m) to ventilated or unventilated soffit or eve vent; or to a deck or porch*
12” (.30 m) to an inside corner*
12” (30 cm) between Rinnai terminals at the same level
12” (30 cm) between Rinnai terminals at the same level
60” (1.52m) between Rinnai terminals at different levels
60” (1.52m) vertically between Rinnai terminals(Also applies to HPe models)
2 inches between outdoor
units at the same level
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Why choose a Rinnai Tankless?
Rinnai offers the most comprehensive warranty:
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Application Example
20 x20 lbs.4 x30 lbs. 3 x60 lbs. 120F degree water
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
Current Specification: 2 x Phoenix HTP PH199-119 Gallons Tanks
- Expensive - Large Space Needed- Standby Loss- Combustion Air - Only 3 years Warranty- Fail Tank = Leak and
Replacement
Application Example
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Northern – 5 x Rinnai RC98 vs 2 x HTP Phoenix PH199-119
COST/SAVINGS CALCULATION
Central – 4 x Rinnai RC98 vs 2 x HTP Phoenix PH199-119
Southern – 3 x Rinnai RC98 vs 2 x HTP Phoenix PH199-119
www.rinnai.us • © 2011 Rinnai America Corporation • [email protected]
CONTACT INFORMATION
WE CAN HELP PROVIDE YOU A RINNAI SOLUTION FOR ALL LAUNDRY APPLICATIONS!
Rinnai will size your project and provide you a Commercial Sizing Report with Piping Diagram back to you within 48 hours and Free of charge. Please contact us at:.
Rinnai Corporation1-866-383-0707
103 International DrivePeachtree City, GA 30269
