Quantech QTC3040T User Manual

Quantech
138
Form QTC3-NM1
Issue date: 12/19/2023
Section 7: Unit controls
Table 15: QTC3 Fault and Inhibit Codes
Code Type Fault or Inhibit Description
Auto, 1x, 3x
See Table 16
2 Unit Fault Low Ambient Temperature Auto
4 Unit Fault Low Leaving Chilled Liquid Temperature Auto
22 Unit Fault Unit High Motor Current (Unit Current Feedback Option) Auto
27 Unit Fault Pump Trip (Hydro Pumps 1 or Hydro Pumps 2) Auto
28 Unit Fault Pump Flow Failure (Hydro Pumps 1 or Hydro Pumps 2) 1x
29 Unit Fault High Ambient Temperature Auto
31 Unit Fault Flow Switch Open Auto
5 System Fault High Discharge Pressure (Software) 3x
7 System Fault Low Suction Pressure 3x
17 System Fault System High Motor Current (System Current Feedback option) 3x
18 System Fault Motor Protector/High Pressure (Mechanical) 3x
19 System Fault Low Evaporator Temperature (R407c Only - N/A Hp Heating Mode) 3x
23 System Fault Low Suction Superheat (EEV) 3x
24 System Fault Sensor Failure (EEV) 1x
25 System Fault Discharge Inhibit (Heat Pump heating mode only) 3x
26 System Inhibit Motor Protector/High Pressure Inhibit Auto
30 System Inhibit Anti-Vacuum Low Pressure Cutout 3x
32 System Inhibit Leaving Chilled Liquid Temperature Sensor Fault 3x
33 System Inhibit Low Discharge Superheat Auto
Type Denition
3x Automatically restarts on the rst and second fault with a lockout on the third fault in 90 minutes
1x Locks out on the rst fault
Auto Allows restart once meeting the required conditions
Table 16: Legend

Quantech QTC3040T Specifications

General

Brand	Quantech
Model	QTC3040T
Category	Chiller
Language	English