Installation Instructions, Specifications | Aprilaire 8539 specification

INSTALLATION INSTRUCTIONS

LOCATION

To ensure proper operation, the thermostat should be mounted on an inside wall in a frequently occupied area of the building. In addition, its position must be at least 18" (46cm) from any outside wall, and approx- imately 5' (1.5m) above the floor in a location with freely circulating air of an average temperature.

BE SURE TO AVOID THE FOLLOWING LOCATIONS:

-behind doors or in corners where freely circulating air is unavailable

-where direct sunlight or radiant heat from appli- ances might affect control operation

-on an outside wall

-adjacent to, or in line with, conditioned air dis- charge grilles, stairwells, or outside doors

-where its operation may be affected by steam or water pipes or warm air stacks in an adjacent parti- tion space, or by an unheated/uncooled area behind the thermostat

-where its operation will be affected by the supply air of an adjacent unit

-near sources of electrical interference such as arc- ing relay contacts

	SPECIFICATIONS
Rated Voltage	20-30 VAC, 24 nominal
Rated A.C.	0.05 Amps to 0.75 Amps continuous
Current	per output with surges to 3 Amps Max.
Rated D.C.	0 Amps to 0.75 Amps continuous
Current	per output with surges to 3 Amps Max.
Control	Heating: 38° to 88°F in 1° Steps
Range	5° to 30°C in 1° Steps
	Cooling: 60° to 108°F in 1° Steps
	16° to 40°C in 1° Steps
Thermostat
Measurement	28° to 124°F or 0° to 48°C
Range
O.D.T. Displayed
Range	-50° to 124°F or -48° to 48°C
Control	± .5°C at 20°C
Accuracy	± 1°F at 68°F
Minimum	(between heating and
Deadband	cooling) 2°F or 1°C

NOTE: This thermostat contains electronic circuitry replacing the conventional mechanical anticipator.

THERMOSTAT INSTALLATION

1.Insert a flat blade screwdriver or coin 1/8" into the slot located in the bottom center of the thermostat case and twist 1/4 turn. When you feel or hear a click, grasp the case from the bottom two corners and sep- arate from the subbase as shown in the diagram at the right. Some models require more force than oth- ers when separating due to the number of terminals on the subbase.

2.Swing the thermostat out from the bottom.

3.Lift the thermostat up and off the subbase.

4.Place the rectangular opening in the subbase over the equipment control wires protruding from the wall and, using the subbase as a template, mark the location of the two mounting holes (exact vertical mounting is necessary only for appearance).

5.Use the supplied anchors and screws for mounting on drywall or plaster; drill two 3/16" (5mm) diameter holes at the marked locations; use a hammer to tap the nylon anchors in flush to the wall surface and fas- ten subbase using the supplied screws. (Do not over- tighten!)

6.Connect the wires from your system to the thermostat terminals as shown in the wiring diagrams. Carefully dress the wires so that any excess is pushed back into the wall cavity or junction box. Ensure that the wires are flush to the plastic subbase. The access hole should be sealed or stuffed to prevent drafts from affecting the thermostat.

7.Before the thermostat is reinstalled on the subbase, install the optional indoor remote sensor (model 8002), if used. Refer to the installation instructions supplied with the model 8002.

REPLACING THE THERMOSTAT

ON THE SUBBASE

1.Position the thermostat on the hinged tabs located at the top of the subbase.

2.Gently swing the thermostat down and press on the bottom center edge until it snaps in place.

SLIDE SWITCH SETTINGS

OUTPUT TERMINAL FUNCTIONS

W1. . . . . . . . Energizes on a call for first stage heat

Y1 . . . . . . . . Energizes on a call for first stage cool

G . . . . . . . . . Energizes with a call for heating or cooling or selected by the FAN button

R . . . . . . . . . Independent switching voltage 24 V. . . . . . . 24 VAC

24 V(c). . . . . 24 VAC (common)

O . . . . . . . . . Energizes the reversing valve continuously in cooling mode B . . . . . . . . . Energizes the reversing valve

continuously in heating and off modes RS2 . . . . . . .For outdoor temperature sensor

RS1 and/or indoor remote sensor options.

RS+V Refer to the instructions included with the sensors.

P.O. BOX 1467 • MADISON, WI 53701-1467

CALL 608/257-8801 • FAX 608/257-4357

Products For Better Indoor Air Quality.

8539 specifications

The Aprilaire 8539 is a high-performance whole-home dehumidifier designed to enhance indoor air quality by efficiently managing humidity levels. This model is particularly suitable for basements, crawl spaces, and larger areas that require effective moisture control.

One of the standout features of the Aprilaire 8539 is its impressive capacity to remove up to 95 pints of moisture from the air per day. This high capacity is essential for homes in humid climates, where excess moisture can lead to mold growth, structural damage, and health issues. The unit operates quietly, ensuring minimal disruption while effectively maintaining comfortable humidity levels.

The Aprilaire 8539 utilizes advanced technology to optimize performance and energy efficiency. It is equipped with a smart control system that allows users to set desired humidity levels and adjust settings according to specific needs. This feature not only enhances user convenience but also helps in conserving energy, making the dehumidifier environmentally friendly and cost-effective.

One of the key characteristics of the Aprilaire 8539 is its robust construction and design, which ensures long-lasting durability. The unit is built with corrosion-resistant materials that can withstand the rigors of daily operation in various environments. It also features a built-in condensate pump, which allows for continuous drainage, eliminating the need for manual water removal and providing a hassle-free experience.

This model is designed for easy maintenance, with a removable air filter that can be cleaned or replaced easily. Regular maintenance ensures that the unit operates at peak efficiency, prolonging its lifespan and enhancing overall performance.

Installation of the Aprilaire 8539 is straightforward. It can be integrated into the home's HVAC system or used as a standalone unit. The versatility in installation options makes it suitable for a wide range of residential applications.

In summary, the Aprilaire 8539 stands out for its high capacity, advanced control features, durable construction, and ease of maintenance. Homeowners seeking an effective solution to manage humidity levels in their living spaces will find this dehumidifier to be a reliable choice for promoting a healthier, more comfortable indoor environment.