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Aqua-Air Tempwise 2001 Operating Manual

Chillwater digital thermostat
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Aqua-Air Tempwise 2001
Chillwater Digital Thermostat

Operating Manual

Aqua-Air Manufacturing
division of the James D. Nall Co., Inc.
1050 East 9th Street
Hialeah, FL 33010 U.S.A.
Phone (305) 884-8363
Fax (305) 883-8549
Email: support@aquaair.com

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Summary of Contents for Aqua-Air Tempwise 2001

  • Page 1: Operating Manual

    Aqua-Air Tempwise 2001 Chillwater Digital Thermostat Operating Manual Aqua-Air Manufacturing division of the James D. Nall Co., Inc. 1050 East 9th Street Hialeah, FL 33010 U.S.A. Phone (305) 884-8363 Fax (305) 883-8549 Email: support@aquaair.com...

  • Page 2: Table Of Contents

    Tempwise 2001 Chillwater Digital Thermostat Aqua-Air Manufacturing 1050 East 9th Street Hialeah, Florida 33010 U.S.A. Contents Introduction ............1 Basic Operation .

  • Page 3: Introduction

    The Tempwise 2001 Control is designed for use with Aqua-Air Chilled Water Air Conditioning Systems. The Tempwise 2001 has a universal power supply that operates on 115V or 230V, 50 or 60 Hz AC power. The Tempwise 2001 includes the following standard and optional features:...

  • Page 4: Basic Operation

    Tempwise 2001 Chillwater Digital Thermostat Manual Read This Manual Completely Before Proceeding! If you require assistance prior to or during the installation of the Tempwise 2001 call Aqua-Air at (305) 884-8363 or Fax your questions to Aqua-Air at (305) 883-8549. The Tempwise 2001 is covered under existing Aqua-Air Manufacturing Warranty Policy.
  • Page 5 1 minute after selecting this mode. MEMORY The Tempwise 2001 has nonvolatile memory which requires no batteries or any form of backup power. When power is lost the operating parameters are retained indefinitely. When power is restored, the control resumes operating as last programmed. All operating and programming parameters are entered into nonvolatile memory instantly and are retained indefinitely.

  • Page 6: Operator Controls And Display Panel

    Tempwise 2001 Display Panel Figure 1: Tempwise 2001 Control Buttons and Indicator Displays POWER BUTTON - The power button is used to toggle between the On and Off modes. Press the power button once to toggle the unit to the On mode. Press the power button again to toggle to the Off mode.
  • Page 7 MODE BUTTON - The mode button is used to select one of the four operating modes. Press and release the mode button and the Tempwise 2001 will advance to the next mode. Continue to press and release the Mode button until the desired operating mode is reached.
  • Page 8 Tempwise 2001 Chillwater Digital Thermostat Manual HEAT MODE LED - The heat mode LED will be lit when the Heat Mode has been selected. The heat mode LED is also lit when the optional electric heat is installed and the heat mode is selected. Electric heater status, on or off, is indicated by the right side decimal point (18).

  • Page 9: Dual Button Functions

    MODES OF OPERATION Off Mode When the Tempwise 2001 is in the Off mode, all control outputs are turned off. Program parameters and user settings are saved in nonvolatile memory. The program mode can only be accessed from the Off mode.
  • Page 10 Tempwise 2001 Chillwater Digital Thermostat Manual Automatic Mode When the “Automatic” LED is on, both heating and cooling are supplied as required. The heat and cool LEDs will be lit according to the mode required. When the system requires the water valve to be turned on for heating or cooling the water valve LED will turn on when the valve is on and will turn off when the valve is off.

  • Page 11: Fan Modes

    The program mode allows the system to operate as efficiently as possible under all conditions. The Tempwise 2001 is shipped with factory programmable default settings which are stored in permanent memory and can be recalled at any time.
  • Page 12 ID program mode and setting P-16 to rSt. Exit the program mode and the software version number appears in the display. The memorized default settings are restored and the Tempwise 2001 control returns to the off mode. The software version number is always displayed when you exit the program mode.
  • Page 13 There are two methods to exit the Program mode. Press the power button and the Tempwise 2001 control will return to the Off mode. Not pressing any buttons or attempting any program changes for sixty (60) seconds will allow the control to exit the Program mode to the Off mode.

  • Page 14: Programming

    Tempwise 2001 Chillwater Digital Thermostat Manual PROGRAMMING Programmable Parameters There are eighteen (18) programmable parameter locations with their Factory Default Settings listed in this section. The table below indicates what these parameters are, along with the permitted values and the original Factory Default Settings.
  • Page 15 Tempwise 2001 Chillwater Digital Thermostat Manual P-1: High Fan Limit The upper fan speed limit can be tailored to suit various motors and operating conditions. The high fan limit is adjusted with the system installed and operational. The range of values are 56 through 85 and represent arbitrary units.
  • Page 16 Tempwise 2001 Chillwater Digital Thermostat Manual P-9: Display Brightness Control The display brightness can be adjusted to suit ambient cabin lighting conditions. The allowed settings are four (4) to thirteen (13), with four (4) being the dimmest and thirteen (13) the brightest. Typically a dark cabin will require a setting of four or five. A very bright cabin will require a setting of twelve or thirteen.
  • Page 17 The program parameters listed on page nine may be altered by Aqua-Air Manufacturing, the installing dealer or the end user. Once new defaults are entered (see page 7, dual button functions) and memorized the new defaults will be reset.
  • Page 18 Tempwise 2001 Chillwater Digital Thermostat Manual P-17: Chillwater Valve Forced Open This feature allows service personnel to force the chillwater water valve open to facilitate bleeding air from the system. Selecting OPn will force the valve open for 4 hours while normal cooling and heating is maintained.
  • Page 19 Tempwise 2001 Chillwater Digital Thermostat Manual AMBIENT AIR TO WATER TEMPERATURE DIFFERENTIAL When equipped with an optional electric heater, the heater will overlap with the chillwater heat by twenty-two degrees Fahrenheit (22 F). The heater will turn on when heat is required and remain on until the chillwater water temperature exceeds the ambient by twenty-two degrees Fahrenheit or until the room temperature is satisfied.

  • Page 20: Special Hardware Instructions

    Tempwise 2001 (Direct Expansion Control) and the Tempwise 2001 (Chillwater Control). CAUTION! Allowing the Tempwise 2001 to operate with any or all of the outputs forced On while unattended can cause serious damage to the air conditioning system and/or vessel.

  • Page 21: Specifications

    Tempwise 2001 Chillwater Digital Thermostat Manual Specifications SET POINT RANGE ......... . . 55 F - 85 TEMPERATURE RANGE DISPLAYED .
  • Page 22 Tempwise 2001 Chillwater Digital Thermostat Manual Cable Lengths Display 15' std. Optional to 50' Air Sensor 7' std. Optional to 50' Water Sensor 7' std. Optional to 50' System Inputs Inside Air Temperature Sensor Water Inlet Temperature Sensor NOTE: Maximum length of display cable is fifty (50) feet. Sensor cable lengths should be limited to 50 feet.
  • Page 23 Basic System Start-up Problems PROBLEM PROBABLE CAUSE SOLUTIONS • No lights in the display and the system does • AC breaker is not turned on or AC power is not • Check for AC power at circuit breaker. not heat or cool. Power on reset does not occur available.
  • Page 24 Advanced Chillwater System Problems PROBLEM PROBABLE CAUSE SOLUTIONS • System runs continuously and is not able to • Set-point temperature set too low. • Raise the set point to the 68 / 72 F range. achieve set-point. • Insufficient hydronic cooling water. •...
  • Page 25 • System operates but valve and heater outputs • Jumper JP1 not removed from module board. • JP1 must be removed for the module to appear to be reversed. function as a chiller control. • The system operates fine, however, in heating •...

  • Page 26: Trouble Shooting Guide

    SELECT From the On Mode, the display will not reset, ambient temperature is displayed, all outputs work but no buttons work. DOWN Tempwise 2001 Display Cable Troubleshooting Guide Display Problem Possible Causes No display and the buttons will not work.

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