• date_rangePosted On :   Aug 08' 2007
  • location_cityCity :   Montreal
  • languageCountry :   Canada
  • content_pasteEnquiry No. :   7080871

Buy Digital Control Heat Pump Swimming Pool

Buy digital control heat pump for pool application type
We are a Canadian company based in Montreal, Quebec Province.
We wish to offer the best quality products to our clients at the best price
possible. We are specialized in importation of various industrial
supplies and components.
This is urgent need for buying Digital Controller for AC application.
The specific technical data is as follow:
1. General Description
The HP727 is a powerful microcomputer control designed for
use in an outdoor swimming pool heat pump. The control features
3 digit temperature display and 3 push button keys. All adjustments
are performed by simple key operations. The HP727 controls
the main compressor contactor, the 3 evaporator fan speeds,
and the water circulating pump. The HP727 monitors both evaporator
and water temperature using precise thermistor sensors for
superior control.
The control features full diagnostics messages, simplifying
both installation and service. The HP727 is an excellent
alternative to electromechanical controls offering improved
water temperature control accuracy, accurate defrost control,
anti-short cycle timer, and solid-state reliability all in a
single package. The HP727 features three speeds fan motor
control for optimum efficiency and minimum acoustic noise.
All calibration and user parameters are stored in an EEPROM
memory. There are no trimmer potentiometer adjustments. All
adjustments including sensor calibrations are done through the
front panel. The HP727 features full self-test diagnostic
capability and sensor re-calibration if needed. The HP727 offers
maximum corrosion and vibration protection. All printed circuit
board interconnections are soldered. The main PCB is dipped
in silicone. This assures maximum board protection even underneath
the PCB components, against humidity, air pollutants, chlorine
vapors and vibrations.
2. Viconics HP727 Swimming pool heat pump control specifications
Operating conditions:
Rated Operating Conditions: 33 F to 120 F; R. H. 0% to 100%,
Storage: -40 F to 120 F; R. H. 0% to 100% , Non-Condensing
Accuracy: + / -1. 8 F
Repeatability: + / -0. 2 F
Resolution: + / -1 digit
Swimming Pool Water Return Temperature Thermistor Sensor (0 F To 120 F)
Evaporator Defrost Temperature Thermistor Sensor (0 F To 120 F)
Contact From Remote High Pressure Switch Dry Contact Input
Contact From Remote Low Pressure Switch Dry Contact Input
Contact From Main Flow Switch Dry Contact Input
Contact From Remote Spa Select Flow Switch Dry Contact Input
Compressor Relay Output: : 1A @ 24 Vac
3 Speeds Fan Relay Outputs: 4A @ 240 Vac
Circulating Pump Relay Output: 1A @ 24 Vac
Complete Diagnostic Error Messages
Display: 3 Digits Display 0. 56inch High
LED Status Indicators: Pool mode LED, Spa mode LED and Heat on LED
Power supply: 0 / 12 / 24 Vac center tap transformer + / -10% 50\60 Hz
5 VA required on 12 Vac for controller only
100 VA maximum for 24 Vac power connection
Dimensions: approx. 5. 5inch x 6. Inch
Weight: 700 gm (1. 51 lb. )
Protection Against Humidity: Unit dipped with silicone based
conformal coating Connectors: 1 / 4 inch fast-on connectors;
screw terminals for field connections
CCSAus file# LR92123 Important note: Heat pump unit should
not be operated when outdoor air temperature is near or under
freezing point; or as specified by manufacturer of heat pump.
Thank you very much and we will wait to hear from serious
manufactures as soon as possible.

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