Aqua-Air Tempwise 2001 User 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 [phone] Fax [phone]
Email: [email protected]

Tempwise 2001 Chillwater Digital Thermostat
Aqua-Air Manufacturing
1050 East 9th Street
Hialeah, Florida 33010 U.S.A.
Contents
Introduction ......................................................... 1
BasicOperation ..................................................... 2
OperatorControlsandDisplayPanel .................................... 4
Dual Button Functions ................................................ 7
ModesofOperation .................................................. 7
FanModes.......................................................... 9
ProgramMode....................................................... 9
Programming ...................................................... 12
DefaultSettingsTable ............................................... 12
SpecialHardwareInstructions ........................................ 18
Specifications ...................................................... 19
Trouble Shooting Guide .............................................. 21
Copyright © 1997 Micro Air Corporation, All Rights Reserved
No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted on any form or
by means electronic, mechanical, photocopying, recording or otherwise without prior written consent by Micro Air
Corporation.
Every precaution has been taken in the preparation of this manual to insure its accuracy. However, Micro Air
Corporation assumes no responsibility for errors and omissions. Neither is any liability assumed for damages
resulting from the use of this product and information contained herein.

Tempwise 2001 Chillwater Digital Thermostat Manual
Page 1
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:
Standard Features
Paintable Face Plate Cover with recess for matching wall covering insert
User friendly 6 button display panel
Five volt logic and micro controller located in the display
3-digit 7-segment display indicates /F or /C
Automatic fan speed reduction as set point is approached
Six (6) manual fan speeds
18 programmable parameters for custom installations
Water In Sensor allowing individual cabin heating
Moisture Mode for controlling relative humidity
Universal AC power supply
Nonvolatile memory retains settings without batteries
Programmable display brightness control for night use
Optional Features
The following optional items can be added by plugging the device into the appropriate
jack and making the necessary programming changes:
Custom Polished Brass Display Panels
Electric Heating element Option
This manual is intended to provide information necessary to insure proper installation
and operation of the Tempwise 2001. Poor installation and/or MISUNDERSTOOD
operating parameters will result in unsatisfactory performance and premature failure of
the Tempwise 2001.

Tempwise 2001 Chillwater Digital Thermostat Manual
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Read This Manual Completely Before Proceeding!
If you require assistance prior to or during the installation of the Tempwise 2001 call
Aqua-Air at [phone] or Fax your questions to Aqua-Air at [phone]. The
Tempwise 2001 is covered under existing Aqua-Air Manufacturing Warranty Policy.
Incorrect installation, neglect and system abuse are not covered under Aqua-Air's
warranty policy.
NOTE: In order to continually improve the Tempwise 2001 Control, Aqua-Air
reserves the right to change this product’s basic operation, specifications and
design criteria without prior notice.
BASIC OPERATION
The Tempwise 2001 is a user friendly, easy to operate, programmable temperature
control.
• Press the ON/OFF button once to engage the system. The display indicates room
temperature when the system is on and the display is blank when the system is off.
• Press and release the Mode Button until the desired Mode LED is illuminated.
• Set the room temperature by pressing the up or down button. The set point can be
viewed by momentarily pressing and releasing the up or down button.
Fan speed operation is automatic. The fan speed decreases as set point temperature
is approached. The fan will operate at low speed when set point is satisfied. Manual
fan speeds can be selected by pressing the Fan Speed Button and selecting the desired
fan speed. The fan will operate at the speed selected and will not change speeds with
room temperature.
The fan can be programmed to cycle on and off with the Heating and Cooling demand.
Normally the automatic fan speed operation is reversed in the heating mode, however,
the fan speeds can be programmed to operate the same as in the cooling mode.

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NORMAL HEATING OR COOLING CYCLE
When heating or cooling is called for, the water valve switches to the appropriate mode.
Four (4) seconds later the automatic fan control adjusts the fan to the proper speed.
When the demand is satisfied, the water valve cycles off and the fan returns to low
speed. If cooling is required, the water valve will not open unless adequate cooling
water is available. The fan will remain in low speed until adequate cooling water is
available. If heating is required the valve will not open unless adequate heating water is
available. The fan remains in low speed until adequate heating water is available. The
water temperature can be viewed by simultaneously pressing the Up and Down Buttons
while in the On Mode. Heat will be supplied when no heating water is available if the
Optional Electric Heater (Electric heating element) has been installed and programmed.
While in the Heating or Cooling Mode, the controller will maintain a two degrees
Fahrenheit (2/F) temperature variation. A four degree swing is required to cause the
unit to shift to the opposite mode. Once in a new mode, Heating or Cooling, the
Tempwise 2001 will maintain a two degree differential.
MOISTURE MODE
While in the On mode, press the Mode Button until the Moisture Control LED is lit.
Every four (4) hours, the fan is started and air circulated for thirty (30) minutes. During
this time the air temperature is sampled and entered into memory. The cooling cycle is
started and continues until the temperature is lowered 2/F. The system is allowed a
maximum of one hour running time to reach the desired temperature. Four (4) hours
after the temperature is satisfied or the Cooling Mode times out, the cycle is repeated.
During the humidity cycle the water valve LED is lit while the system is cooling. The first
cycle starts 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.

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OPERATOR CONTROLS AND DISPLAY PANEL
Refer to Figure 1 for the buttons locations and display functions listed on the following
pages.
Tempwise 2001 Display Panel
Figure 1: Tempwise 2001 Control Buttons and Indicator Displays
1. 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.
2. FAN SPEED BUTTON - The fan speed button is used to switch between Auto
and Manual Fan Speeds. Pressing and releasing the Fan Speed Button once

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Page 5
toggles the fan mode as indicated by the Fan LED indicator lamps. Press and
release the fan speed button until the desired Automatic (A) or Manual Fan Speed
(1 through 6) is selected.
3. UP BUTTON - Momentarily press the up button and the set point will appear in
the temperature display. Press and release the up button to increase the set point
one degree. The set point Is increased by one degree each time the up button is
pressed and released. The highest set point allowed is 85/F. The up button is
used with the down button to display the Water In temperature when the control is
on. The up button is also used to increase program values in the program mode.
4. DOWN BUTTON - Momentarily press and release the down button to display the
set point. Press and release the down button to decrease the set point. The set
point is decreased one degree each time the down button is pressed and
released. The lowest set point allowed is 55/F. The down button is used in
conjunction with the up button to display Water In temperature when the control is
on. The down button is also used to reduce program values in the program mode.
5. 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. The mode selected is indicated by the Mode
LED, i.e., Cool, Heat, Automatic or Moisture Mode.
6. TEMP SELECT BUTTON - Press and release the Temp Select button to view
inside air temperature, outside air temperature (optional) or the set point. The
appropriate LED, Inside, Outside or Set Point will be lit indicating which
temperature is being displayed. If no outside air sensor is installed three (3)
dashes will appear in the Three Digit Display.
7. THREE DIGIT SEVEN SEGMENT DISPLAY - The inside air temperature is
displayed in the window whenever the control is turned on. The three digit 7
segment display provides a readout of the return air temperature. The display
also indicates program information, fault codes and outside air temperature when
the optional outside air sensor is installed. The display momentarily indicates the
set point when the up or down button is pressed. When the control resumes
operation after a power interruption all the display LEDs will turn on for one
second. This is a normal operating condition and is referred to as "Power On
Reset".

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8. 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).
9. COOL MODE LED - The cool mode LED will be lit when the Cooling Mode has
been selected.
10. AUTO LED - The auto LED is lit when the automatic heating or cooling mode has
been selected. The control will automatically switch to heating or cooling when
this mode is selected.
11. MOISTURE CONTROL LED - The moisture mode LED is lit when the Moisture
Control has been selected. This mode is used to control humidity during periods
when the vessel is unoccupied.
12. MANUAL FAN LED - The manual fan LED will be lit when one of six manual fan
speeds has been selected.
13. AUTO FAN LED - The auto fan LED is illuminated when automatic fan speed
operation has been selected.
14. FAN SPEED BAR GRAPH - There are six (6) individual fan speed LED's in the
Fan Speed Bar Graph. Each LED represents one (1) fan speed. Low fan speed
(1) is indicated by illuminating the first LED. High fan speed is indicated by
illuminating all six (6) LED's. Any of the six (6) fan speeds available are displayed
by illuminating the appropriate LED's.
15. INSIDE LED - The inside LED is lit when the inside air temperature is being
displayed.
16. OUTSIDE LED - The outside LED is turned on when the outside temperature is
displayed (optional).
17. SET POINT LED - The set point LED is turned on when the set point is displayed.
18. VALVE LED - The water valve operating status (Open or Closed) is indicated by
turning on the right most decimal point in the 3 Digit Display.

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DUAL BUTTON FUNCTIONS
Up & Down Buttons - Simultaneously Press the Up and Down buttons, while in the On
Mode, to view the chillwater inlet temperature.
Simultaneously Press the UP & Down Buttons while in the program mode to set new
custom programming defaults.
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.
On Mode
When the control is in the On mode, power will be supplied to the appropriate control
outputs and the display will indicate the current state of operation. The operating and
program parameters resume based on those stored the last time the unit was operating.
Cool Only Mode
When “Cool” LED is on, only the cooling systems are selected and operated as
required. When the temperature drops below the set point, the system will not
automatically switch to the heating mode. Cooling only is available for customers that
do not want automatic cooling and heating operation.
Heating Only Mode
When the “Heat” LED is on, only the heating systems are selected and operated as
required. Should the temperature rise above the set point, the system will not
automatically switch to the cooling mode. Heating only is supplied for customers that
require the system to not automatically switch from the heating to the cooling mode.

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Page 8
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.
Temperature in a given mode will be maintained within two degrees Fahrenheit (2/F) of
the setpoint temperature, however, a four degree difference is required to allow the
control to change modes. Once in a new mode, the temperature will remain within two
degrees Fahrenheit (2/F) of the set point.
Moisture Mode
While in the “On” mode, press the Mode Button until the Moisture Mode LED is
illuminated. Every four (4) hours, the fan is started and air circulated for thirty (30)
minutes. During this time the air temperature is sampled and entered into memory.
The cooling cycle is started and continues until the temperature is lowered 2/F. The
system is allowed maximum of one hour running time to reach the desired temperature.
Four (4) hours after the temperature is satisfied or the one hour timer runs out the cycle
is repeated. During the humidity cycle the water valve LED is lit while the water valve is
turned on and the system is cooling. The first cycle starts one minute after selecting
this mode.