Rinnai E110CP - Manuel (Page 29)

Installation & Servicing Instructions Rinnai E-Series
29
6.5.3 Installing a Thermostatic Mixing Valve
A thermostatic mixing valve should be installed on all E combi boilers on the domestic
hot water side to prevent scalding. This valve will regulate the water temperature
leaving the brazed plate heat exchanger. See the fi gure 10 for the suggest piping.
DHW piping with thermostatic mixing valve fi g. 10
Hot water can be dangerous, especially for infants or children, the elderly,
or infirm. There is hot water scald potential if the thermostat is set too high.
Water temperatures over 125º F (51º C) can cause severe burns or
scalding resulting in death.
Hot water can cause first degree burns with exposure for as little as:
3 seconds at 140º F (60º C)
20 seconds at 130º F (54º C)
8 minutes at 120º F (48º C)
Test the temperature of the water before placing a child in the bath or
shower.
Do not leave a child or an infirm person in the bath unsupervised.
DANGER
T
P
Low Loss Header
Sediment fi lter
Cold water
Mixed water
to fi xtures
Thermostatic
mixing valve
WRIK-LF-F kit
(WRIK-LF-F 3/4" threaded connection)
WRIK-C kit
(WRIK-C 3/4" sweat connection)
DHW Pressure
Relief Valve
Drain valve
Shut off valve
System Supply System Return