Instruction Manual

1717

DSC Series

2.0 Installation • Electrical Requirements

Electrical Requirements

All ﬁeld wiring to the patio heater must be done in accordance with the national, state, provincial, local

codes and the guidelines in this manual. In the United States, refer to the most current revisions to the

Electrical Code ANSI/NFPA 70 and in Canada refer to the most current revisions of the Canadian

Electrical Code CSA C22.1 Part 1. The unit must be electrically grounded according to these codes.

This patio heater system is designed to operate on an external 24VAC electrical system. Provide only

24VAC with a NEC Class 2 transformer to the control wires inside the controls compartment. Use at least

18 AWG Solid core thermostat type wire that has an adequate capacity and temperature rating for the

total load. Never locate the transformer inside the controls compartment.

Installing the control wire

Each heater includes a rubber grommet to allow

for control wire to be brought into the unit with a

water resistant seal. Feed the control wire

through the grommet, piercing the rubber with

the wire. Ensure enough wire length is available

to make the proper connections. Tie the control

wire into a loose knot, as shown in Figure 2.6.

Ensure knot is loose enough to not cause any

damage to the wire. This will allow for a strain

relief for the connections to the heater.

Wiring: From the control wire, connect the

24VAC to the blue wire (labeled “24VAC”) inside

the control compartment. Then connect the

Common from the control wire to the green wire

(labeled “Common”). See Fig 2.8, page 18.

Controls Operation

This patio heater was designed for use in an outdoor environment. Therefore, controlling the heater by

use of a thermostat may not be the best means of temperature control. In an outdoor application, the air

temperature may not increase and never satisfy the thermostat. The preferred control device when

operating this heater in an outdoor area is a switching or timer device.

In an application where there are several wind breaks or a partially enclosed area, a thermostat can be

used.

NOTICE

The power supply to the heater must be within +/-5% of the voltage rating as indicated on the rating plate

of the appliance. If input power does not meet these speciﬁcations, contact your utility company.

WARNING

Incorrect or improper wiring may result in shock, injury or death. Field wiring to the heater

must be connected and grounded in accordance with national, state, provincial, local codes

and to the guidelines in this manual. Refer to the most current revisions to the ANSI/NFPA

70 Standard.

Figure 2.6 • Control Wire Installation

Loose Knot in

Control Wire

Connections