State GTS-310-PI User Manual
O N - D E M A N D
R E S I D E N T I A L G A S
ON-DEMAND RESIDENTIAL
GAS MOD EL S
GTS-310-NI
GTS-310-PI
GTS-310-NE
GTS-310-PE
Fully modulating, gas fired, tankless
water heater with sealed combustion
(optional) and power-vented flue.
Indoor and outdoor models available
for residential applicaitons. Capable
of supplying hot water for domestic
hot water systems (directly or
indirectly using water storage tanks),
recirculation systems, hydronic
heating systems, radiant floor
heating systems, and/or combined
domestic and heating applications.
FEATURES
Continuous Maximum Flow
Rates up to 8.0 GPM
ENERGY STAR®Qualified
Qualifies for up to $1500
Tax Credit (must be installed
by December 31, 2010)
Indoor and Outdoor Models
Available
Available in Natural Gas
or Propane (LP)
Low NOx Emissions
Complies with Lead
Plumbing Law
SAFETY FEATURES
• Built in Freeze Protection
• Manual Reset Hi Limit (Set at 194°F)
• Overheat Cutoff Fuse
• Inlet, Outlet & Mixing Thermistors
for Constant Temperature
Monitoring
• Air Fuel Ratio Rod
• GFI Power Supply Connection
• Flame Sensor
Venting and Combustion
• 4” Category III Stainless Steel
• Vertical or Horizontal Installation
• 50’ Max Length, 5 elbows max (90°
elbows = 5’ equivalent length)
• Power Vent
• Electronic Ignition - No Pilot Light
• 3” Combustion Air Intake (with
optional kit)
Optional Accessories
• RemoteTemperature Controller
• Direct Vent Conversion Kit (indoor)
• Complete Line of Stainless Steel
Venting
• Recess Box (outdoor)
• Pipe Cover
• Isolation Valve Kits
• Backflow Preventor
• Concentric Termination Kits
Warranty
• 12-year limited warranty on heat
exchanger in residential applications
• 5-year warranty on all parts
ANSI Z21.10.3
CSA 4.3
For more information on Residential Gas On-Demand units, contact:
State Water Heaters
500 Tennessee Waltz Parkway
Ashland City, TN 37015
1-877-737-2840 Toll-free USA
www.statewaterheaters.com
SRGSS03410
O N - D E M A N D
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310 Indoor/Outdoor Pressure Loss
Head
Feet
Pressure
Loss (psi)
0
1
2
3
4
5
6
7
8
9
0 20 40 60 80 100 120 140
Flow Rate (GPM)
Temperature Rise (°F)
Comparison of Flow Rates vs. Temperature Rise
13-3/4" (350mm)
10" (254mm)
1-3/4" (45mm) 1-3/4" (45mm)
1-3/8" (36mm)
21-3/8" (544mm)
20-1/4" (520mm)
1-7/8" (47mm)
HOT 5-1/4" (133mm)
120V 1-3/8" (36mm)
GAS 4-7/8" (124mm)
COLD 3-1/4" (84mm)
Ø 3-9/8 " (101 mm)
13-3/4" (350mm)
10" (254mm)
1-3/4" (45mm)
1-3/4" (45mm)
21-3/8" (544mm)
20-1/4" (520mm)
1-7/8" (47mm)
HOT 5-1/4" (133mm)
120V 1-3/8" (36mm)
GAS 4-7/8" (124mm)
COLD 3-1/4" (84mm)
1-5/8" (43mm)
5" (128mm)
7-7/8" (203mm)
4-3/8" (113mm)
19-3/8" (493mm)
COLD 2-7/8" (71mm)
1" (26mm)
HOT 6-1/2" (164mm)
9-1/2" (241mm)
120VAC 3-7/8" (99mm)
GAS 5-1/4" (135mm)
4-3/8" (113mm)
1-5/8" (43mm)
19-3/8" (493mm)
COLD 2-7/8" (71mm)
1" (26mm)
HOT 6-1/2" (164mm)
9-1/2" (241mm)
120VAC 3-7/8" (99mm)
GAS 5-1/4" (135mm)
R E S I D E N T I A L G A S
ON-DEMAND RESIDENTIAL GAS MODELS
MODEL
NUMBER
FUEL
TYPE
GAS CONSUMPTION
INPUT
MIN.
BTU/H
MAX.
BTU/H
ENERGY
FACTOR
INLET GAS
PRESSURE
MIN.
W.C.
MAX.
W.C.
MAX
HEIGHT WIDTH DEPTH
GPM*
DIMENSIONS
(INCHES)
VOLT AMP FLUE**
INTAKE
(OPTIONAL)
HOT/COLD
GAS CONN.
GTS-310-NI Natural 11,000 190,000 0.82 5.0 10.5 8.0 20.5 13.8 8.5 120 0.77 4” O.D. 3” O.D. 3/4” NPT 43
GTS-310-PI Propane 11,000 190,000 0.82 8.0 14.0 8.0 20.5 13.8 8.5 120 0.77 4” O.D. 3” O.D. 3/4” NPT 43
GTS-310-NE Natural 11,000 190,000 0.82 5.0 10.5 8.0 20.5 13.8 8.5 120 0.77 4” O.D. 3” O.D. 3/4” NPT 43
GTS-310-PE Propane 11,000 190,000 0.83 8.0 14.0 8.0 20.5 13.8 8.5 120 0.77 4” O.D. 3” O.D. 3/4” NPT 43
All dimensions in inches.
15-150 psi water pressure. 40 psi or above recommended for maximum flow.
*Current numbers based on factory testing, 0.4 GPM required for continuous fire after initial ignition.
**Category III required
Pressure only relief valve requires (min. 200,000 BTUs. 150 PSI). Min 40 PSI or above recommended for maximum flow.
APPROX.
SHIPPING
WEIGHT
(LBS)
CLEARANCES: Top 12”, Bottom 12”, Front 24”, Back 1”, Sides 2”
310 INDOOR DIMENSIONS
For complete information on limited warranties, consult written warranty or contact technical support at 1-877-737-2840.
For more information on Residential Gas On-Demand units, contact:
State Water Heaters
500 Tennessee Waltz Parkway
Ashland City, TN 37015
1-877-737-2840 Toll-free USA
www.statewaterheaters.com
SRGSS03410 © 2010 State Industries, Inc. Printed in U.S.A
State Industries, Inc., reserves the right to make product changes or improvements without prior notice.
CLEARANCES: Top 36”, Bottom 12”, Front 24”, Back 1”, Sides 2”
310 OUTDOOR DIMENSIONS
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