i posted this last night but it seems to have disappeared so here it is again...more or less.
Originally Posted by badtech
0F is the lowest setpoint you can have.
Trane has 6 menus in the controller. the other 2 menus are "hidden" and you need the password to access it. Trane hid it really well...in the IOM on page 93...duh!
i think that you may have some inaccurate sensors (sat evap temp and/or comp temp sensor), so i would check them against a well known thermocouple. but like i said earlier, get those values and get your glycol levels up.
74: Run Normal
7E: Run Unload
77: Run Evap Limit
the chiller will run to maintain the load until the "saturated evap temp" hits the number programmed into menu #41. it will then unload (code 77) to maintain the "saturated evap temp" above its minimum setpoint (menu #41). at this point you will start losing your load.
How to make the perfect "Half-Hitch" knot or any other boyscout knot in 3 easy steps...
1. Remove your meter leads from the meter and very carefully return them to their storage case or bag.
2. Wait 2 seconds
3. Very carefully remove your meter leads from their storage place and enjoy your new knot!