Thermador UCVM30FS, UCVM36FS manual Introduction, Plan the installation, General Description

GENERAL DESCRIPTION

The complete downdraft system consits of the ventilator, the intake and the blower (See Fig. 1). The blower can be either integral (mounted on the vent intake in the cabinet under the cooktop) or a remote (mounted on the roof or outside wall). When a remote blower is used, a duct transition is mounted on the ventilator intake in place of the integral blower to connect the intake to the ductwork. The duct transition must be purchased separately.

The integral blower or duct transition can be mounted in different positions on the intake to route ductwork to avoid cabinet, building framing, utilities, etc.

The downdraft system is available in

30-inch and 36-inch models. It is intended for use with all brands and models of residential 30-inch or 36-inch gas or electric cooktops except professional style cooktops.

Carefully follow the planning procedures listed below (See Figure 2).

A. Determine whether a remote or integral blower will be used. Remote blower installation requires 4 wires plus a ground wire to run from the downdraft to the blower.

B. Make sure that adequate cabinet and counter space has been provided and that the intake will be accessible if service is required.

C. Consider that cross drafts created by adjacent open windows, doors, air conditioning, old heating vents, recessed ceiling lights, and traffic patterns may affect performance.

D. For gas cooktop installations make sure that a minimum 10 square inch opening is provided in the toe-kick or other cabinet area. Inadequate ventilation of the cabinet below the cooktop may result in flame outage when operating the vent system.

E.Provide for air supply or ”make.up air” to the room where unit will be installed. If ”make-up air” is not provided, then problems, such as fireplace chimney downdrafts, could result.