TTHERM GEO TVA series, Инструкция по установке и эксплуатации

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12/06/2012 34 GI202
High and Low Pressure Switches
– The heat pump is equipped with both high and low pressure switches that
shut the unit off if the refrigerant pressure exceeds 550 PSI or goes below 40 PSI.
Do not reset a system in the
heating mode without first verifying water flow.
WARNING
DO NOT RESET THE SYSTEM MORE THAN ONCE –
REPEATED RESETTING OF THE LOCKOUT CAN
CAUSE SERIOUS DAMAGE.
IF A REPEAT LOCKOUT OCCURS CONTACT YOUR SERVICE DEALER
IMMEDIATELY.
User Visual Warnings
Various front panel LED’s have pulsing indication when certain key temperature parameters reach a point where
system corrective action is advised. GEO Logic has default points where the manufacturer feels notification
should be made. When any one of these temperature points is reached the compressor is shut down for 2 x
ACD’s (6 min.). At the end of this shutdown delay the compressor will again be activated as an automatic reset
type function. This does not lead to a lockout, it is simply a warning and a pause in the system for possible
system correction or notification for further service action.
These LED’s will be pulsing during the 2 x ACD (6 min.) shutdown/auto reset cycle.
Function Sensor
Default Air
Values
Trip Point
Increase Decrease
Differential
Lo pressure ST 35° √ 3°
Hi pressure ST 110° √ 5°
Loop temp. LWT 39° open, 20° closed √ -
AUX HL Internal Fixed √ 20°