Product (Model) History - Rheem RTG2-42 Troubleshooting Manual

Product (Model) History

Implementation
Date Affected
September 2004 RTG42
May 2005 RTG74
Dec 2006 RTG74
RTG74
Second Generation
August 2006 RTG2 42
RTG 53
series
'dash one'
RTG74
Sep29 + Oct New 'dash
2006 one' RTG
74
Models Modification/Upgrade
Initial Tankless Product
Launch
Initial Product Launch
Gas Valve change; also
included new fuel supply
tubes from gas valve to
burner assembly
Water pipes changed.
Removed the two speed
clips from the cold in and
water by-pass.
Upgraded product launch on
new chassis
No air filter switch
Initial Product Launch
No air filter switch
Added EZ link function to
all similar models
Added UMC Main remote
control as standard to all
models; allowed residential
units to heat to 140
Removed 60 minute lockout
timer for return circulation
function
Power Restore Auto On
feature added. Unit resets to
last recorded temperature
setting
Water flow inlet valve
solenoid will close
completely when using EZ
link cable or MIC 180
Allowed all 2
units to be installed with
MIC 180
RTG 74 chassis only
SVC 810 Tankless Troubleshooting Manual
New Parts
n/a
n/a
n/a
n/a
n/a
n/a
EZ link Cable
UMC 117
Main
0
F
No
No
No
nd
generation No
Yes
5
Board
Programming
n/a
n/a
n/a
n/a
n/a
n/a
Yes
Yes
Yes
Yes
Yes
Yes
Yes