Aprilaire 1700 Safety And Installation Instructions Manual
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Aprilaire 1700 Safety And Installation Instructions Manual

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Dehumidifier
Safety and Installation Instructions
Model 1700
READ COMPLETE INSTALLATION INSTRUCTIONS BEFORE STARTING. SAVE THIS MANUAL.

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Summary of Contents for Aprilaire 1700

  • Page 1 ® Dehumidifier Safety and Installation Instructions Model 1700 READ COMPLETE INSTALLATION INSTRUCTIONS BEFORE STARTING. SAVE THIS MANUAL.

  • Page 2: Table Of Contents

    210 minimum. injury or equipment damage. Handle with care. SPECIFICATION OVERVIEW The purpose of the Aprilaire ® Dehumidifier is to keep the humidity in the house at acceptable limits to reduce the unwanted effects of high humidity. The dehumidifier will gather data from the HVAC system and measure the dew point of the house air to decide when to run.

  • Page 3: Installation Overview

    INSTALLATION OVERVIEW SEE PAGE SEE PAGE STEP 1: Select the type of installation. STEP 3: Select location and mounting method a. Whole-house ......3 for dehumidifier .

  • Page 4: Localized Dehumidifier Operation And Installation

    WHOLE-HOUSE, RETURN TO SUPPLY This installation (Figure 2) is similar to the “Principle Living Space to Supply” installation, except that the inlet to the dehumidifier will come from a bypass duct from the HVAC system’s return duct rather than the principle living space. Note: An optional powered damper (6508) is recommended to be installed on the dehumidifier outlet to prevent airflow from recirculating through the dehumidifier when the HVAC system is on and dehumidifier is off.

  • Page 5: Operation And Installation

    WHOLE-HOUSE CONVERTIBLE TO LOCALIZED DEHUMIDIFIER OPERATION AND INSTALLATION In this configuration, the dehumidifier will automatically switch between whole-house dehumidification when the HVAC equipment is on, and localized dehumidification when the HVAC equipment is off. WHOLE-HOUSE, WITH LOCALIZED OPTION FOR CONDITIONED SPACE This installation is used to dehumidify a whole house and also a separate FIGURE 4 –...
  • Page 6 WHOLE-HOUSE, WITH LOCALIZED OPTION FOR UNCONDITIONED SPACE This installation is used to dehumidify a whole house FIGURE 6 – DEHUMIDIFIER OPERATING AS WHOLE-HOUSE SYSTEM and also a separate unconditioned space like an unfinished basement or an area where circulation of air from that location throughout the house is undesirable.

  • Page 7: Location

    LOCATION The dehumidifier can be installed in a wide variety FIGURE 8 of locations. It is required to be sheltered from the elements, but can operate in 40°F to 150°F ambient conditions. • The dehumidifier is designed for a dedicated 15 amp circuit.

  • Page 8: Ducting

    Therefore, leakage at the inlet collar is particularly important to eliminate. All joints and seams must be sealed. The “Maximum Total Equivalent Length” of 8” flexible duct that can be connected to the Aprilaire ®...

  • Page 9: Air Filter

    After determining the manner or type of dehumidification system configuration that will be used, and if the duct system equivalent length is acceptable, please use the following criteria and guidelines for installing the ductwork. • If needed, use Aprilaire ®...

  • Page 10: Wiring

    WIRING WIRE DEHUMIDIFIER TO HVAC EQUIPMENT NOTE – When installing the dehumidifier in a system with a power-stealing thermostat, the use of load resistors on the Y and W terminals are recommended. CAUTION Improper wiring to the HVAC equipment could cause damage to the dehumidifier control and/or the HVAC equipment. •...
  • Page 11 See CONTROL AND SETUP (page 12) for setting up the cycle period and cycle time. INSTALL AND WIRE POWERED BACKFLOW DAMPER • If the Aprilaire ® Normally-Closed Damper (Model 6508) needs to be installed in the dehumidifier outlet, it should be wired to the terminals labeled “DEH DAMPER”...

  • Page 12: Control And Setup

    Local Control setting activates the internal RH and temperature measuring, while Remote Control setting overrides the internal sensors with an Aprilaire remote control (Model 70 – not included). • Switch 2 – Sets active or passive HVAC blower. Default setting is “BLOWER-OFF”, passive blower.
  • Page 13 30 seconds. After 1 minute the dehumidifier blower and compressor will shut off (“TEST” mode only). 4. If the dehumidifier blower does not activate in TEST mode, refer to the Troubleshooting Guide. 5. For ventilation (optional) test, be sure that 24 VAC is applied in series with the Aprilaire ®...

  • Page 14: Troubleshooting Guide

    TROUBLESHOOTING GUIDE SYMPTOM TROUBLESHOOTING PROCEDURE The dehumidifier damper does • Follow all of the system checkout procedures. not open in “TEST” Mode • Check the wiring diagram for the damper & 24 VAC transformer. The ventilation damper does • The damper will not open if the cycle time within the current period has already not open when the HVAC been met.
  • Page 15 10006238 P.O. BOX 1467 • MADISON, WI 53701-1467 • PHONE: 800/334-6011 • FAX: 608/257-4357 • www.aprilairecontractor.com B2203431...

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