- R & M Supply Greenhouse Controller Specification Sheet
Page 10 
MAINTENANCE / SPECIFICATIONS 
SPECIFICATIONS:
System operating voltage  120vac +/- 20% @ 50-60 Hertz 
Maximum Switching amperage  15-amps @ 120vac 
Overload protection  15-amp normal blow fuse 
Operating temperature  0 - 50’ C / 32 - 122’ F 
Maximum humidity  95% RH (Non-condensing) 
Temperature control range  50-115’ F with a 7’ F differential, +/- 3.6’ 
Humidity control range  20 - 80% RH with a 5% differential 
Adjustable timer repeatability  +/- .2% under fixed conditions 
Timer setting accuracy  +/- 5% 
Hydro “ON” timer  1 second to 40 minutes 
Hydro “OFF” timer  1 minute to 8 hours 
CO2 Inject duration timer  1 second to 40 minutes 
CO2 Inject frequency timer  1 minute to 8 hours 
24-hour timeclock accuracy  +/- 3% monthly 
Dimensions  10” X 8” X 7” 
Weight  Less than 6 lbs. 
Relay operations  Minimum 100,000 electrical / 10,000,000 mechanical 
MAINTENANCE:
1)  Consult the troubleshooting chart for a listing of the most common problems. 
2)  DO NOT open the enclosure!!! There are no components that require maintenance. 
3)  Do not use this equipment for purposes other than what it is designed for. It will provide many years of trouble-free 
service when used properly. 
4)  In the event you cannot solve the problem, first consult the dealer who sold the unit then contact the factory for 
instructions on how to return it to the factory for repair. 
PUBLISHED BY R & M Supply INC. 
COPYRIGHT 2008 BY R & M Supply 
ALL RIGHTS RESERVED. 
Liability statement: 
R & M Supply and their retailers and distributors are not responsible for any damage or injuries (consequential or otherwise) 
arising from the use of this device. The purchaser assumes all responsibility for the use and proper installation of this device. 










