GREYSTONE TLFLF24X01 Flying Lead Low Limit Thermostat Instruction Manual

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Flying Lead Low Limit Thermostat  

TLFL Series - Installation Instructions  

INTRODUCTION  

The single point flying lead low limit thermostat incorporates a precision thermistor  

temperature sensor and provides a Form C relay output (NO/NC) with an adjustable  

setpoint. The sensor is encapsulated in a 6 mm (0.236”) OD X 50 mm (2”), 304 series  

stainless steal probe. Standard wire length is 3.05m (10’). All probes are constructed  

to provide excellent heat transfer, fast response and are potted to resist moisture  

penetration. A hinged and gasketed Polycarbonate enclosure is provided for ease of  

installation.  

BEFORE INSTALLATION  

Readtheseinstructionscarefullybeforeinstallingandcommissioningthetemperature  

sensor. Failure to follow these instructions may result in product damage. Do not use  

in an explosive or hazardous environment, with combustible or flammable gases, as  

a safety or emergency stop device or in any other application where failure of the  

product could result in personal injury. Do not exceed the device ratings.  

MOUNTING  

The flying lead sensor can be used in several different types of applications where single point temperature monitoring is required.  

Listed below are some typical applications  

The flying lead sensor can be installed directly into any air duct. Select a suitable installation area in the middle of the duct. To achieve the best reading, do  

not place in an area where air stratification may be present. Avoid areas where the sensor is exposed to  

vibrations or rapid temperature changes.  

Figure 1  

Once a suitable spot is selected, drill a 3/8”hole in the top of the duct and slide the probe through, mount  

a length of flexible duct hanger from top to bottom of the duct. Mount the probe to the duct hanger  

using a tube clamp or wire tie. See Figure 1.  

The flying lead could also be used to measure pipe temperature. Select a suitable spot along the pipe,  

remove a small section of insulation if present and set aside. It is recommended that thermal compound  

be used to improve heat transfer. Spread a liberal amount on the pipe. Lay probe in thermal compound  

and secure sensor to pipe using a worm gear clamp (not included).  

For added protection it is recommended to wrap the probe cable around the pipe 1-2 times. Re-install  

insulation if present, allowing sensor cable to protrude. See Figure 2.  

The enclosure has a hinged cover with latch. Open cover by pulling slightly on the latch on the right side  

of the enclosure. At the same time pulling on the cover, as shown in Figure 3.  

Figure 2  

A 1/2" NPT threated connection hole is provided in the bottom of the enclosure. Screw the EMT connector  

or cable gland connector in until tight. See Figure 4. It is recommended that weatherproof conduit or cable  

gland fittings be used. An optional 1/2" NPT to M16 thread adapter and cable gland fitting is available.  

Make wiring connections as per the“Wiring”illustrations on Page 2.  

Swing door closed until securely latched. For added security, 2 screws are provided that may be installed  

in the integrated screw tabs. See Figure 5.  

Figure 3  

Figure 4  

Figure 5  

Thread adapter and  

cable gland fitting  

EMT Connector  

Page 1  

IN-GE-TLFLXXX-003  

Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com  

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General	Details
Name	GREYSTONE TLFLF24X01 Flying Lead Low Limit Thermostat Instruction Manual
Make	Greystone
Language	English
Filetype	PDF (Download)
File size	0.21 MB

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• Greystone

GREYSTONE TLFLF24X01 Flying Lead Low Limit Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Flying lead low limit thermostat TLFL series - installation instructions The single point flying lead low limit thermostat incorporates a precision thermistor temperature sensor and provides a Form C relay output (NO/NC) with an adjustable setpoint. Before installation, read these instructions carefully. Failure to follow these instructions may result in product damage. The flying lead sensor can be used in several different types of applications where single point temperature monitoring is required. The flying lead sensor can be installed directly into any air duct. To achieve the best reading, do not place in an area where air stratification may be present. It is recommended that thermal compound be used to improve heat transfer. The enclosure has a hinged cover with latch. A 1/2 NPT threaded connection hole is provided in the bottom of the enclosure. Make wiring connections as per the wiring illustrations on Page 2. For added security, 2 screws are provided that may be installed in the integrated screw tabs.
• Page 2: Wiring Deactivate the 24 Vac/dc power supply until all connections are made to the device to prevent electrical shock or equipment damage. Use 14-22 AWG shielded wiring for all connections and do not locate the device wires in the same conduit with wiring used to supply inductive loads such as motors. The temperature thermostat comes with the temperature sensor pre-wired to the PCB. Pull at least six inches of control wire into the enclosure, then complete the wiring connection according to the wire diagram for the applicable power supply. Connect the DC positive or the AC voltage hot side to the PWR terminal. The supply common is connected to the COM terminal. The relay has both Normally Open (NO) and Normally Closed (NC) contacts available. The setpoint differential has 3 jumper selectable settings (Low/Mid/High). Set jumper to desired differential. To set the switching setpoint, turn the setpoint potentiometer to the desired temperature setting. Operating conditions: -10 to 50°C (14 to 122°F), 5 to 95% RH, non-condensing.