HTP HPW-50-6 - Manual (Page 13)

13
LP-374 REV. 3.25.14
Confirms inputs and locks or unlocks the key pad. Press this key for 3 seconds to lock or unlock the key pad. In order to confirm Mode
or set point temperature inputs, hold this key for 10 seconds.
8. MODE Button
Allows users to choose an operating mode.
Detailed Description of Control Functions
1. Auto-Confirm Function
10 seconds after pressing control pad keys, the auto-confirm function automatically accepts entered data and returns the water heater
into operating mode.
2. Auto-Lock Function
If control pad keys have not been pressed for 1 minute, the control pad will automatically lock. To unlock the control pad, press and
hold the ENTER key for 3 seconds.
3. Diagnostic Function
This function allows service technicians or users to view water heater parameters. To open the Diagnostic Function, unlock the control.
Once the control is unlocked, press ENTER and the UP arrow simultaneously for 1 second. This will allow the user to view the water
heater parameters. To exit, press ENTER and UP.
Table 2 is a descriptive list of the terms that will be found in the Diagnostic Function mode.
DIAGNOSTIC TERMS
TERMS DEFINITION
T2 Water Tank Temperature
T3a Evaporator Inlet Temperature
T3b Evaporator Outlet Temperature
T4 Compressor Discharge Temperature
T5 Ambient Temperature
Ts Water Temperature Setpoint
UE Upper Electric Heating Element
LE Lower Electric Heating Element
Table 2 – Diagnostic Terminology
4. Screen Save
To extend display life, the display will dim when there is no operation for a period of time. Press any key to light the screen.
B. DISPLAY OVERVIEW
Figure 12 – Display Detail
1. Peak Load Shifting Mode 1
When in this mode, this icon will light. The heat pump mode will run, and users can set water temperature.
2. Peak Load Shifting Mode 2
When in this mode, this icon will light. The heat pump mode will run. Users cannot set water temperature. Water temperature is
automatically set at 110
o
F.