Thermolec FC User Manual

Electric Heating and Controls
October 2008
TEL: 514-336-9130
FAX: 514-336-3270
www.thermolec.com
Installation, Operating and Maintenance Instructions for
THERMOLEC electric heaters - type FC & SC - (or tubular FT & ST).
1- Mechanical Installation of THERMOLEC heaters.
1.1 Handling. 1. Remove the shipping covers just before installation.
2. Inspect the heater carefully and report any damage to the manufacturer.
DO NOT INSTALL A DAMAGED HEATER.
1.2 Installation.
Heater Position
1.2.1 The axis of the duct must always be perpendicular to the face of the heater.
1.2.2
1.2.3
The heating elements must always be installed horizontally.
Model SC or ST (Slip-in type) (Please see drawings page 4).
1.2.4 Cut an opening in the side of the duct.
1.2.5
Slip the heater into the duct until the hole is completely covered by flanges around the heater.
1.2.6
Fasten the heater to the duct with sheet metal screws and seal openings with a suitable sealing compound.
1.2.7 If the heater is heavy, use additional hangers to support the heater.
Model FC or FT (Flanged type)
(Please see drawings page 4).
1.2.8 Flange both ends of the duct outwards on three sides to match the heater’s flanges.
1.2.9 Fasten the heater to the duct with sheet metal screws. (For heavy heaters, use nuts and bolts and additional
hangers to support the heater).
1.2.10
Seal openings with a suitable sealing compound.
1.2.11 Spacing Requirements to obtain Optimal Operating Conditions (Please see drawings page 4).
•
24 inches between the heater and filter frames.
** inches between the heater and elbows in the duct.
** inches between the heater and branches in the duct.
** inches between the heater and sharp transitions of the duct.
** = minimum distance = the largest of two dimensions (
W or
H) up to 48”.
Examples: heater of 12” x 12” minimum distance 12”.
heater of 30” x 12” minimum distance 30”.
Heater of 60” x 30” minimum distance 48”.
•
48 inches between the heater and a double outlet fan, except with split duct design.
•
30 inches between the heater and access doors or diffusers, except if a metal screen is supplied with the
heater.
•
1 inch between the duct at the outlet side and combustible materials for a length of 72”, for vertical ducts only.
•
For the flanged type, 24 inches between the control box cover and obstructions to allow space for installation and
service.
•
For the slip-in type, width of the duct (dimension W) + depth of the control box + ten (10) inches between
the control box cover and obstructions to allow slipping the heater out the duct and to allow safe servicing.
2060 rue Lucien-Thimens,
Montréal, Québec, Canada H4R 1L1
The air direction may be either vertical or horizontal, but when the unit is installed horizontally, the cut-out cover
must be on top.

Thermolec FC Specifications

General

Brand	Thermolec
Model	FC
Category	Electric Heater
Language	English

Summary

Mechanical Installation of THERMOLEC Heaters

Handling

Instructions for removing shipping covers and inspecting the heater for damage.

Installation - Heater Position

Guidelines for heater axis, heating elements orientation, and air direction.

Installation - Slip-in Type (SC or ST)

Steps for cutting an opening, slipping the heater in, and sealing.

Installation - Flanged Type (FC or FT)

Procedure for flanging ducts and fastening flanged heaters securely.

Spacing Requirements for Optimal Operation

Minimum distances between heater and duct components for safe and efficient operation.

Electrical Installation of THERMOLEC Heaters

Disconnect Power and Read Nameplate

Safety procedure to disconnect power before working and consulting wiring diagrams.

Supply Wires and Disconnecting Means

Specifications for supply wires and installation of a disconnect switch.

Control Circuit and Magnetic Contactors

Requirements for control circuit wiring and ratings for magnetic contactors.

External Controls and Air Flow Interlock

Ratings for external controls and connecting fan interlock or air sensing devices.

Operating THERMOLEC Heaters

Minimum Air Flow and Warnings

Ensuring sufficient airflow and avoiding combustible materials or vapors.

Air Temperature Limits

Specifies maximum inlet and outlet air temperatures for safe operation.

Static Pressure and Air Direction

Maintaining minimum static pressure and heater operation flexibility.

Manual-Reset Thermal Cut-out

Procedure for checking and re-setting the manual thermal cut-out.

Maintenance

Visual Inspection Recommendations

Periodic checks for dust, overheating, water traces, or rust.

Electrical Inspection and Checkpoints

Checking connections, resistance, and contactors after startup and periodically.

Off-season Maintenance

Recommendations for preventing moisture infiltration in tubular elements.