Service manual

© 2012
Roberts-Gordon LLC
All rights reserved. No part of this work covered by the copyrights herein may be reproduced
or copied in any form or by any means - graphic, electronic, or mechanical, including
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written permission of Roberts-Gordon LLC.
TABLE OF CONTENTS
SECTION 1: Heating System Safety ............................1
1.1 Manpower Requirements ....................................1
1.2 Safety Labels and Their Placement ....................1
1.3 California Proposition 65 .....................................1
SECTION 2: Installer Responsibility............................3
2.1 Corrosive Chemicals...........................................3
2.2 National Standards and Applicable Codes .........3
SECTION 3: Unpacking the Pump ...............................4
3.1 Open Shipping Cartons ......................................4
SECTION 4: Major Components ..................................5
4.1 Standard Parts List .............................................6
SECTION 5: Pump Installation ...................................10
5.1 Pump Assembly Instructions ............................10
5.2 Pump Impeller Rotation .................................... 11
SECTION 6: Pressure Switch Mounting and
Wiring.......................................................14
6.1 Pressure Switch Installation ..............................14
SECTION 7: Pump Mounting Instructions ................15
7. 1 M o unting Platform .............................................15
SECTION 8: Motor Wiring ...........................................16
8.1 Impeller Rotation Direction ...............................16
8.2 EP-301 Wiring ...................................................16
8.3 EP-303 Wiring...................................................17
SECTION 9: Venting ....................................................19
9.1 Venting..............................................................19
9.2 Venting the Pump .............................................19
9.3 Vent Material Recomendations .........................19
9.4 Horizontal Venting.............................................19
9.5 Vertical Venting.................................................20
9.6 Venting Accessories .........................................20
9.7 Condensate Tee Assembly ...............................21
9.8 Condensate Trap and Condensate Tee ............23
SECTION 10: Servicing Instructions .........................26
10.1 Pre-Season Maintenance and Annual
Inspection .......................................................26
10.2 To Change the Motor and/or the Impeller .......26
10.3 Maintenance Checklist....................................28
SECTION 11: Replacement Parts and
Accessories ..........................................29
11.1 Replacement Parts ..........................................29
11.2 Accessories .....................................................30
SECTION 12: Specifications.......................................31
12.1 Material Specifications ....................................31
12.2 EP-301 Controls Specifications ...................... 31
12.3 EP-303 Controls Specifications ...................... 31
12.4 General Dimension Specifications ................. 31
12.5 Pump Specifications....................................... 31
SECTION 13: The ROBERTS GORDON
®
EP-300
Series Pump Warranty......................... 33
Printed in U.S.A.