Space Ray LTU Series Two Stage - Manual (Page 2)

Form #43343330
May 2013
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TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
1.0) Safety ................................................................................................................................................... 1
2.0) Installer Responsibility ...................................................................................................................... 1
3.0) General Information........................................................................................................................... 1
4.0) Minimum Clearances to Combustibles ........................................................................................... 3
5.0) Specifications...................................................................................................................................... 4
6.0) Packing List ......................................................................................................................................... 4
6.1) Accessory Packages .......................................................................................................................... 5
7.0) Dimensions – LTU(40-75)-30 Series ............................................................................................... 5
8.0) Heater Assembly Overview ............................................................................................................... 6
9.0) Typical Suspension Methods ............................................................................................................ 7
10.0) Opening 15’ Body Package .............................................................................................................. 8
10.1 Heater Assembly ................................................................................................................................ 9
11.0) Gas Connections And Regulations ................................................................................................ 12
12.0) Instructions For Pressure Test Gauge Connection ...................................................................... 14
13.0) Electrical Connections ..................................................................................................................... 15
14.0) Venting ............................................................................................................................................... 19
15.0) Air For Combustion .......................................................................................................................... 23
15.1) Direct Outside Air For Combustion ................................................................................................ 23
16.0) Lighting and Shutdown Instructions .............................................................................................. 25
17.0) Sequence of Operation .................................................................................................................... 25
18.0) Control Component Location .......................................................................................................... 26
19.0) Cleaning And Annual Maintenance ............................................................................................... 27
20.0) Troubleshooting Guide..................................................................................................................... 28
21.0) Replacing Parts ................................................................................................................................ 32
21.1) Removal of Spark Electrode ........................................................................................................... 32
21.2) Removing main burner and Gas Valve ......................................................................................... 33
21.3) Air Switch Pressure Check .............................................................................................................. 33
21.4) Ignition System Checks ................................................................................................................... 34
21.5) Motor And Blower Wheel Check .................................................................................................... 35
22.0) Installation Data ............................................................................................................................... 35
23.0) Replacement Parts Guide ............................................................................................................... 36
24.0) Warnings Card .................................................................................................................................. 40
This heater complies with ANSI Z83.20 (current standard) and CSA 2.34. Copies of the National Fuel Gas Code (ANSI
Z223.1-latest edition) are available from the CSA at 8501 East Pleasant Valley Road, Cleveland, Ohio 44131 or 55 Scarsdale
Road, Don Mills, Ontario M3B 2R3. All NFPA codes are available from the National Fire Protection Association, Batterymarch
Park, Quincy, Massachusetts 02269.