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Burner End View Side View Top view Reflector I 1180°U-tube
l—»s—1 n.s' I '� ✓� 44 7/16"(113 cm)-High Efficiency Reflector
I'(3a cm)I I�(�o^) '1 Tumulato(Some Models)
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32 3/16"(82 cm)-Standard Reflector
iEEIVED
L I< /annum Length'A'
Overall Minimum Length'C' j [ Minimum Length'B'
Nerdl Minimum
i.
Length'D' >
High Efficiency Reflector Standard Reflector
O 17-5A JUNl�2 7�r20118
I�_207/16" I �143/16"� O V CITY O A IGARD
(52 cm) (36 cm) VANTAGE CTH3
Model CTH3-80 CTH3-115 CTH3-1 t�f ILDIN � (�
Minimum Length of StraightTube* [ft]A 20 30 40 t�
Minimum Length of U-tube* [ft,in]B 11,7 16,7 21,7 26,7
Overall Minimum Length of Straight Tube [ft,in]C 21,5.5 31,5.5 41,5.5 51,5.5
Overall Minimum Length of U-tube [ft,in]D 13,0.5 18,0.5 23,0.5 28,0.5
*For additional lengths,please see the current Installation,Operation and Service Manual.
Minimum Input(Btu/h)x(1000) (NG/LP) 52/55 75/78 100/105 130/135
Maximum Input(Btu/h)x(1000) 80 115 150 200(NG)/190(LP)
Inlet Pressure
[in wc]NG min. 5.5 5.5 5.5 6.0
LPG Propane min. 12 12 12 12
NG&LPG Propane max. 14 14 14 14
Gas Connection NPT /z" �h" 3/4" a/a"
Exhaust Flue dia 4" 4" 4" 4"
Combustion Air Inlet dia 4" 4" 5" 5"
Weights
Aluminized Tube and Accessory Packages [ft] 20 30 40 50 60 70
High Efficiency Aluminum Reflector [Ib] 89 124 167 213 248 291
Standard Aluminum Reflector [Ib] 86 120 161 206 240 281
Burner [Ib] 40
U-tube Packages
Aluminized U-tube for High Efficiency Reflector [Ib] 23
Aluminized U-tube for Standard Reflector [Ib] 19
All Models
Fuel
NG or LPG Propane
Electrical Supply 120 V,60 Hz,1.3 A(Run)4.8 A(Start)
Heat Exchanger Tubing 10 ft Sections,4"dia,16 Gauge,First 10 ft ALUMI-THERM"Steel Tubing
[Remaining Heat Treated Aluminized Steel Tubing]
Reflector and End Caps .024 Aluminum[Optional-.024 Stainless Steel Type 304]
Control System Modulating Gas Valve and Hot Surface Electronic Ignition Control Four-Try,100%Shut-Off,Prepurge,
Post-purge,Auto Reset,Tri-Color LED Status/Fault Indicator
Control Options Zone Sensor,Thermostat,Modulating Thermostat,10 K ohm Potentiometer,Remote 0-10 Vdc or 4-20 mA
Signal
Approved As Indoor(Vented or Unvented)
Certification ANSI Z83.20/CSA 2.34
Warranty Three-Year Limited(Refer to Installation,Operation and Service Manual for Details)
Clearances to Combustibles**[in]
Model CTH3-80 CTH3-115 CTH3-150 CTH3-200
Horizontal 45° Horiz. 45° Horiz. 45° Horiz. 45° Horiz. 45°
A A A 6 8 6 10 6 12 8 12
B 38 8 46 8 50 8 52 10
.--8 u—.. C 66 66 77 78 80 84 96 85
c
1. e o D 38 60 46 69 50 74 52 79
**Clearances B,C and D can be reduced by 50%for locations 25 ft(7 m)or more downstream of the burner.For other mounting options and associated clearances,complete
installation,operation and service criteria,please see the current issue of the Installation,Operation and Service Manual.
This product is not for residential use.
This document is intended to assist licensed professionals in the exercise of their professional judgment.
Roberts-Gordon LLC
1250 William Street
P.O.Box 44
Buffalo,NY 14240-0044 USA
Telephone:+1.716.852.4400
Fax:+1.716.852.0854 You Tube Linked in
Toll Free:800.828.7450
0 in
www.robertsgordon.com
0 2017 Roberts-Gordon LLC All rights reserved.No part of this work covered by the copyrights herein maybe reproduced or copied in any formor by any means-graphic,electronic,or mechanical,including photocopying,
recording,taping,or information storage and retrieval systems-without written permission of Roberts-Gordon LLC.
Printed in U.S.A. CTH3SNA 1117 Rev L
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precise Lir-to-Gas Ratio Pro ides ( ngs '�
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modulation
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• Efficient ]optimum combustion throughout range�of burner inputs ensured
by pre-programmed burner controls that adjust both fuel and air :,
• System information and ease of service providedby comprehensive on-board
diagnostics for fault and system status �,A
• Burner box design with protective enclosure for controls minimizes exposure to �s�
dirt and moisture from combustion air
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• Longer life provided by durable components
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