Section 1.0: Introduction
This manual is designed to aid selected companies/qualified personnel to troubleshoot and re
-
pair Therm-OmegaTech’s Therm-O-Mix WWM Safety Shower Stations. Any qualified personnel
assigned to troubleshoot or repair a Therm-O-Mix Safety Shower Station should read the entire
manual before proceeding. If you have any questions or concerns about the information found in
this manual please contact ThermOmegaTech Inc. at 1-877-379-8258.
Section 1.1: Definitions and Terminology
•
System = safety shower/eyewash station
•
Station = Therm-O-Mix Station tempered water unit
•
Normal Range = tepid/moderately warm/lukewarm potable water not to exceed lOO°F
•
Flow Pressure = gauge pressure measured during flow ( dynamic pressure)
•
V1 = primary mixing valve; mixes cold inlet water with hot inlet water
•
V4 = normally closed; final safety control; senses water temperature out of mixing valve V1;
V4 opens if the outlet water temperature is too high, short circuiting the WWM Diaphragm
Actuator, closing the hot port of V1 and reducing hot water flow
•
WWM Diaphragm Actuator = normally retracted for standard mixing mode; pressure
sensitive diaphragm overrides and closes hot port during over-temperature or loss of hot
water supply at V1
Page 2
Section 1.2: Recommended Tools
Section 1.3: Check List
The following is a list of recommended tools needed to properly troubleshoot and repair a
Therm-O-Mix WWM Safety
•
1/8, 3/16 Hex Keys
•
Open-end wrenches including 7/16”, ½, 1”, 1-1/8”, 1½”)
•
Channel lock/ Alligator Pliers
•
(2) 12” or 14” Pipe wrenches
•
(2) 12” or 14” Spud wrench w/ 2-5/8” Capacity
•
Thermometer or Thermocouple w/ reader
•
Phillips screwdriver
Review the checklist below before troubleshooting the Therm-O-Mix WWM Safety Shower
Station. See Appendix #4 for the printable checklist.
•
Does the plant have adequate Hot Water Flow Pressure? (Recommended min. 45 PSIG/ max.
100 PSIG)
•
Is the station’s hot water supply line properly sized? (Recommended min. 1” IPS)
•
Does the plant have adequate Cold Water Flow Pressure? (Recommended min.
45 PSIG/ max. 100 PSIG)
•
Is the station’s cold water supply line properly sized? (Recommended min. 1” IPS)
•
Is the station supplying tempered water to anything other than the Safety Shower Station?
•
Are freeze and scald protection valves installed correctly? (As required for outdoor
applications)
•
Is the cold water supply line in contact with or being overheated by another source? (Steam
supply lines, solar radiation or steam tracing)
