RESIDENTIAL /
LIGHT COMMERCIAL
TANKLESS HIGH EFFICIENCY
CONDENSING OUTDOOR MODELS
GTS-520-NEH
GTS-520-PEH
FEATURES
Condensing Technology
Provides Significant Energy
Cost Savings
Primary Heat Exchanger
is Constructed of HRS35
Commercial-Grade Copper
• Stronger than standard copper and
more resilient against erosion
Secondary Heat Exchanger
is Made of Type 316L
Stainless Steel
• Provides additional protection
against corrosion
Continuous Maximum Flow
Ratesupto9.0GPM
Can be Used for Both
Residential and Light
Commercial Applications
®
ENERGY STAR
Easy-Link Up to 4 Units
• With no additional parts or
accessories needed
Outdoor Models include
Remote Control as a
standard feature
Qualified
Electronic IgnitionNo Pilot Light
Built-In Display Shows
Operating Temperature
Along with Diagnostic and
Error Codes
Low NOx Emissions
Complies with Lead
Pluming Law
Safety Features:
• Air-Fuel Ratio (AFR) Sensor
• Exhaust & Water Temperature
Safety Control
• Overheat Cutoff Fuse
Internal Freeze
Protection System
Accessories
• Remote T emperatur e Controller
• Pipe Cover
• Neutralizer Kit
• Plumbing Installation Kits
Warranty
• 12-year limited warranty on heat
exchanger in residential applications
• 5-year limited warranty on heat
exchanger in commercial applications
• 5-year warranty on all parts
Indoor Models include both
ANSI Z21.10.3 CSA 4.3
For more information on Tankless Condensing Units, contact:
State Water Heaters
500 Tennessee Waltz Parkway
Ashland City, TN 37015
1-877-737-2840 Toll-free USA
www.statewaterheaters.com
a Remote Control and
Power Cord as standard
features
SRGSS03210 Revised March 2012
LIGHT COMMERCIAL
OUTDOOR CONDENSING MODELS
RESIDENTIAL /
GAS CONSUMPTION INPUT INLET GAS PRESSURE
MODEL
NUMBER
FUEL
TYPE
MINIMUM
BTU/H
MAXIMUM
BTU/H
MINIMUM
W.C .
MAXIMUM
W.C . HEIGHT WIDTH DEPTH
All dimension in inches.
15-150 psi Water Pressure. 40 psi or above recommended for maximum flow.
12-1/2"
1/2" (12.5mm)
GAS 6" (153.6mm)
HOT 7-1/4" (182.1mm)
120VAC 8-1/2" (216.3mm)
COLD 8-5/8" (220.6mm)
10-1/2" (266.8mm)
Condensate drain port
(316mm)
25-1/2" (649mm)
4-1/2" (115mm)
120VAC 2-1/4" (58.2mm)
CLEARANCES: Top: 36”; Bottom: 12”; Front: 24”; Back: .05”; Sides: 3”
ENERGY
FAC TOR
0.91
0.91
HOT/COLD
GAS CONN.
18-1/2" (470mm)
12-1/2" (320mm)
DIMENSIONS IN INCHES
25-3/5
25-3/5
18-1/2
18-1/2
3-1/2" (90mm)
4-1/2" (115mm)
1-1/4" (29.2mm) COLD
4-5/8" (116.8mm) GAS
6-1/4" (159.1mm)HOT 5-5/8" (142.2mm)
Condensate drain port
APPROX.
SHIPPING
WEIGHT
(LBS)
12-2/5
12-2/5
29-1/2" (751mm)
Flow Rate vs. Temperature Rise
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
Flow Rate (gpm)
2.0
1.0
0.0
0 20406080100120
Temperature Rise (°F)
140
Pressure Loss
50
45
40
35
30
25
20
15
Pressure Loss (psi)
10
5
0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
Flow Rate (gpm)
120
100
80
60
40
20
0
Head Feet
Set Temperature : 125°F & lower
Set Temperature: 130
°
F & Higher
For complete information on limited warranties, consult written warranty or contact technical support at 1-877-737-2840.
State Industries, Inc., reserves the right to make product changes or improvements without prior notice.
For more information on Tankless Condensing Units, contact:
State Water Heaters
500 Tennessee Waltz Parkway
Ashland City, TN 37015
1-877-737-2840 Toll-free USA
www.statewaterheaters.com
SRGSS03210 Revised March 2012 ©2012 State Industries, Inc. Printed in U.S.A