Aube Technologies TH113 A PB112-024T, Installation Instructions, n Applications, o Supplied Parts

PB112-024T

Installation Instructions

24 V Low-Voltage Power Base

nApplications

4.1Single SSR with Built-in Transformer

The PB112-024T power base can be used on any TH11x series thermostat (with the exception of the TH110 model). This low-voltage power base operates on 15-minute cycles and can be connected to a line-voltage load using a relay or directly to a 24-volt device. The PB112-024T is compatible with most relays; however, the following Aube relays are optimized for use with this power base:

•RT850 solid-state relay (SSR)

•RT850T solid-state relay (SSR) with built-in 24-V transformer

•RC840 electromechanical relay

•RC840T electromechanical relay with built-in 24-V transformer

Electrical
Panel	Blue	Red

BlackHeater

4.2Multiple SSRs with External Transformer

oSupplied Parts

nOne (1) power base o Two (2) plastic anchors p Two (2) mounting screws

pInstallation Guidelines

Electrical

Panel

	Black	External 24 V
		Transformer
Heater	Red

Black

For a new installation, choose a location about 1.5 m (5 ft.) above the floor.

The thermostat must be installed on an inside wall facing the

Heater

Red

heating system (except for floor heating systems).

Avoid locations where there are air drafts (top of staircase, air outlet), dead air spots (behind a door), direct sunlight or concealed chimney or stove pipes (except for floor heating systems).

qInstallation Procedure

The installation must be carried out by an electrician and com- ply with local electrical codes.

nTurn off power to the heating system at the main electrical panel to avoid electrical shock.

oWire the base according to your application. See typical wiring diagrams in sections 4.1 to 4.4.

pFor a floor heating system installation, con-

nect the floor sensor between the S and R ter- minals.

qSecure the base to the wall using the provided screws and wall anchors.

rConfigure the switches located on the control module (if any). Refer to the user guide.

sInstall the control module onto the base. t Apply power to the heating system.

uVerify the installation by checking that the heating system can be turned on or off using the thermostat.

4.3Electromechanical Relay with External Transformer

Electrical

Panel

External 24 V

Transformer

Heater

4.4Hot Water Heater Valve

Electrical

Panel

External 24 V	Valve
Transformer

rTechnical Specifications

Maximum load: 0.5 A / 24 VAC

Heating cycle length: 15 minutes

Operating temperature: 32°F to 122°F (0°C to 50°C)

Storage: -4°F to 122°F (-20°C to 50°C)

Size (H • W • D): 124 x 70 x 23 mm (4.89 x 2.76 x 0.91 in)

Wire gauge: 14 to 22 AWG

PB112-024T 400-112-000-B 18/1/06 1/1