Control Setup; Operation - Hayward HeatPro VS HP50952T Manuel D'installation Et D'utilisation

GENERAL: After completing the installation connections to the pool heater, follow the procedures outlined below to ensure that the pool heater is function-
ing properly. Before proceeding, MAKE CERTAIN there are no water leaks in any plumbing connections or piping and water flow is within the proper flow rate
ranges. The heater is equipped with a control system that automatically monitors the water temperature set points and safety devices. As water conditioning
is needed, it turns on the compressor to start the appropriate transfer of heat to the water. Figure 12 provides a summary of heater components and their
locations in the system. Check that the pump is operating and the system is filled with water prior to starting the heater.
Figure 12: Location of Components (heating operation flow shown)
The heat pump takes heat from the environment and uses it to heat the pool water. During heat pump operation, high temperature, high-pressure sub cooled
liquid Refrigerant (A) is throttled by Metering Device (TXV) and turned into low temperature, low-pressure saturated liquid (B). The two-phase Refrigerant flows
through the Air Coil (Evaporator), where the liquid refrigerant evaporates into vapor by absorbing heat from the surrounding air. At the outlet of the Air Coil
(Evaporator) it becomes a low temperature, low- pressure superheated vapor (C). The Compressor receives this flow at the suction line (D), and compresses it
into a high temperature, high pressure superheated vapor, which is discharged from the Compressor (E) and flows through the reversing valve into the Water
Heat Exchanger (Condenser). The heat carried by the flow is then released to the pool water. At the same time, the high temperature, high-pressure super-
heated vapor is then condensed back to high-pressure sub cooled liquid (A), which completes the cycle. The water, which is being forced through the Water
Heat Exchanger (Condenser) by the pool pump, is thus heated as it passes through.
HEAT PUMP PROTECTION FEATURES: These heat pumps are equipped with safeguards that will stop heater operation to protect the unit in case of the follow-
ing events:
• Excessively high refrigerant pressure
• Excessively high water temperature
• Loss of refrigerant

Control Setup

This pool heater is equipped with a digital thermostat which allows the user to select the desired water
temperature. The heater will then function automatically to maintain the desired temperature. The heater has 3
modes of operation:
1. HEATING: in this mode, the heater will automatically function to manage a minimum water
temperature setting.
2. AUTO: In this mode the heat pump will automatically respond to either a call for heating or cooling
as described above.
3. COOLING: in this mode, the heater will automatically function to manage a maximum water
temperature setting.
USER INTERFACE PANEL AND INPUTS: The control displays temperatures, mode selections, diagnostic codes
and accepts user inputs.
Display - When power is supplied to the heat pump unit, the display will show sensor temperature (in
degrees F or C), operation mode and other useful information.
ON/OFF Button - Press the Circular Touch Button:
Press for 0.5s for system ON (Blue Screen) and OFF (Black Screen).
Press and hold for 5s to lock and unlock the screen. The Circular Touch Button will also cancel the
present selection when making adjustments.
15

Operation

• Evaporator Freeze-up
• Low Ambient Temperature
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Figure 13: User Interface Panel