TLRPB24C01 Remote Probe Strap On Low Limit Thermostat
Remote Probe Strap-on Low Limit Thermostat
TLRP Series – Installation Instructions
Introduction
The Remote Probe Strap-on Low Limit Thermostat is a device used
to monitor and control temperature in pipes where an immersion
sensor with thermowell can’t be installed. Before installing and
commissioning the thermostat, it is important to read the
instructions carefully. Failure to follow the instructions may
result in product damage. It is not recommended to 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.
Mounting
The strap-on sensor installs directly onto any pipe where an
immersion sensor with thermowell can’t be installed. Once a
suitable spot is selected, 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 probe cable around the pipe 1-2 times.
Re-install insulation if present, allowing sensor cable to
protrude.
Mount the enclosure on a flat surface in close proximity to the
area where the probe is inserted on the pipe. Secure the enclosure
with (2) #10 x 25 mm (1) self-tapping screws (not provided). The
enclosure has a hinged cover with a latch. Open the cover by
pulling slightly on the latch on the right side of the enclosure,
at the same time pulling on the cover.
A 1/2 NPT threaded connection hole is provided in the bottom of
the enclosure. Screw the EMT connector or cable gland connector in
until tight. 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.
Wiring
Make wiring connections as per the Wiring illustrations on Page
2.
Specifications
- Power Supply: 12 to 28 Vac/dc
- Consumption: 50 mA max
- Relay Contacts: SPDT, Form C contacts (N.O. and N.C.)
Dimensions
- 112.5 mm x 99.7 mm x 53.7 mm (4.43″ x 3.93″ x 2.11″)
- Probe: Various Lengths
- Cable: 1.524 m (6.00′) FT-6 Rated Plenum Cable, 304 Series S/S,
22 AWG
Remote Probe Strap-on Low Limit Thermostat
TLRP Series – Installation Instructions
INTRODUCTION
The single point strap-on 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, 304 stainless steel probe and is available in various lengths (see ordering chart). Standard wire length is 5′ (1.5 m). 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 included for ease of installation.
BEFORE INSTALLATION
Read these instructions carefully before installing and commissioning
the thermostat. 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
MOUNTING
injury. Do not exceed the device ratings.
The strap-on sensor installs directly onto any pipe where an immersion sensor with thermowell can’t be installed.
Once a suitable spot is selected, 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 about 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 probe cable around pipe 1-2 times as shown in Figure 1. Re-install insulation if present, allowing sensor cable to protrude.
Figure 1
Mount the enclosure on a flat surface in close proximity to the area where the probe is inserted on the pipe. Secure the enclosure with (2) #10 x 25 mm (1″) self tapping screws (not provided). As shown in Figure 2.
The enclosure has a hinged cover with a latch. Open the 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.
A 1/2″ NPT threaded 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.
Figure 2
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
IN-GE-TLRPXXX-003
EMT Connector Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
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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. Make all connections in accordance with national and local codes. · The temperature thermostat comes with the temperature sensor pre-wired to the PCB. If removal is required for installation then it may be re-wired as shown
in Figure 6. · 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
as shown in Figure 7. · Connect the DC positive or the AC voltage hot side to the PWR terminal. The supply common is connected to the COM terminal. See Figure 7. · The relay has both Normally Open (NO) and Normally Closed (NC) contacts available. The relay output is available on the NO/COM/NC terminal. Make
connections before applying power as shown in Figure 8. · The setpoint differential has 3 jumper selectable settings (Low/Mid/High). Set jumper to desired differential as shown in Figure 9. · To set the switching setpoint, turn the setpoint potentiometer to the desired temperature setting as shown in Figure 10. · Once all connection settings are made and checked, power can be applied.
Figure 6 Temperature sensor wiring to PCB (Factory Wiring)
No Polarity
Figure 8
Relay Output Wiring
DIFFERENTIA L
HIGH MID LOW
NO COM NC
TEMP COM PWR
Figure 9 Setpoint Differential Setting
DIFFERENTIAL
HIGH MID LOW
HIGH = 5.6°C/10°F MID = 2.8°C/5°F LOW = 1.1°C/2°F
Figure 7
NO
+24 Vdc Digital
Power Supply Wiring
COM
DI
INPUT
NC
Controller
Temperature Sensor
COM PWR
COMMON +24 Vdc 24 Vdc Power Supply
NO
+24 Vdc
COM
COMMON
Figure 10
Setpoint Adjustment
NC
24 Vdc Power Supply
3C/38F
COMMON
1C/33F
5C/42F
COM
COMMON
DI
-2C/29F
8C/46F
PWR
24 Vac
Controller
-4C/25F SETPOINT 10C/50F
24 Vac Transformer
SPECIFICATIONS:
Power Supply:…………………………………..12 to 28 Vac/dc Consumption:…………………………………..50 mA max Relay Contacts:…………………………………SPDT, Form C contacts (N.O. and N.C.)
5 Amps @ 30 Vac/250 Vac resistive 1.5 Amps @ 30 Vdc/250 Vac inductive Relay Action:……………………………………..Activates on temperature fall – Auto reset Setpoint Operation:………………………..Single-turn knob-pot on PCB Adjustable Setpoint:……………………….-4 to 10°C (25 to 50°F) Setpoint Temperature:……………………Low: 1.1°C (2°F) Mid: 2.8°C (5°F) High: 5.6°C (10°F) Jumper selectable Temperature Sensor:………………………10K ohm curve matched precision thermistor Sensor Accuracy:……………………………..±0.2°C, 0 to 70°C (±0.36°F, 32 to 158°F) Probe Sensing Range:…………………….-40 to 100°C (-40 to 212°F) Probe Material: …………………………………304 Series Stainless Steel Probe Diameter:……………………………….6 mm (0.236″) Probe Length: …………………………………..50 mm, 100 mm, 150 mm 200 mm (2″, 4″, 6″, 8″) Wire Material: ……………………………………PVC insulated, parallel bonded Operating Conditions:……………………-10 to 50°C (14 to 122°F), 5 to 95% RH, non-condensing Storage Conditions: ………………………..-30 to 70°C (-22 to 158°F), 5 to 95% RH, non-condensing Wiring Connections:……………………….Screw terminal block (14 to 22 AWG) Enclosure:…………………………………………..Grey Polycarbonate UL94-V0, IP65 (NEMA 4X) Optional thread adapter (1/2″ NPT to M16) and cable gland fitting Country of Origin:……………………………Canada
DIMENSIONS
112.5 mm 4.43″
99.7 mm 3.93″
0.5″ NPT
53.7 mm 2.11″
116.5 mm 4.58″
1.524 m 6.00′
Various Lengths
6.0 mm 0.236″
FT-6 Rated Plenum Cable, 304 Series S/S
22 AWG
Probe
PRINTED IN CANADA
IN-GE-TLRPXXX-003
Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
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