Leslie E-300L User Manual

CONSTANTEMP LOW PRESSURE
STEAM-WATER HEATERS
Models E-1500L, E-1520L, E-300L, E-320L, E-320LDW, E-4500L, E-4520L,
E-600L, E-620L, E-620LDW, E-7500L, E-7520L, E-900L, E-920L,
E-10500L, E-10520L, E-1200L and E-1220L
12501 Telecom Drive, Tampa Florida 33637
90/4.5.1
Rev.1
INSTALLATION, OPERATING,
AND MAINTENANCE INSTRUCTIONS
PARTS LIST
TABLE OF CONTENTS
SECTION I — INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SECTION II — START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SECTION III — MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SECTION IV — TROUBLE SHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-19
ILLUSTRATION INDEX
DRAWING, DIMENSIONS, TYPICAL INSTALLATIONS AND MISCELLANEOUS DATA
Figure 1 - Control Valve Complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Figure 2 - Gain Control Adjustment Curve Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Figure 3 - Actuator Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Figure 4 - Valve Plug Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Figure 5 - Temperature Adjustor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Figure 6 - Key Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Drawing - Models E-1500L, E-1520L, E-300L and E-320L . . . . . . . . . . . . . . . . . . . . . . . .8-10
Drawing - Models E-1500L, E-300L, E-4500L, E-600L and E-620LDW . . . . . . . . . . . . . . . .12
Drawing - Typical Installation for Drenching Showers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Drawing - Models E-4500L, E-600L, E-900L, E-10500L and E-1200L . . . . . . . . . . . . . .15-18

Leslie E-300L Specifications

General

Brand	Leslie
Model	E-300L
Category	Water Heater
Language	English

Summary

SECTION I INSTALLATION

CONNECTION OF STEAM TRAP DISCHARGE PIPING

Proper connection of steam trap discharge piping for optimal performance.

OPERATING FEATURES OF LOW PRESSURE CONSTANTEMP HEATERS

Explanation of unique adjustable gain feature for temperature compensation.

SECTION II START-UP PROCEDURE

SECTION III MAINTENANCE OF SYSTEM COMPONENTS

Hot Water Control Valves Dismantling

Steps for dismantling hot water control valves for maintenance.

TO DRAIN UNIT FOR PROLONGED SHUT-DOWN

Steps for safely draining the unit for prolonged shutdown.

ACTUATOR ASSEMBLY

CONTROL VALVE ASSEMBLY

DISASSEMBLY

Procedure for disassembling the heat exchanger unit.

ASSEMBLY

Procedure for assembling the heat exchanger unit after maintenance.

SECTION IV TROUBLE SHOOTING GUIDE

TROUBLESHOOTING GUIDE Recirculating Systems

Guide for resolving issues in recirculating systems.

TROUBLESHOOTING GUIDE Heat Exchanger and Blending Valve

Guide for resolving issues with heat exchangers and blending valves.

TYPICAL INSTALLATION FOR DRENCHING SHOWERS

MISCELLANEOUS DATA

RELIEF VALVE SIZING

Guidance on selecting and sizing relief valves for the system.