Chromalox PN401 specifications OCC & WCC Control Center

Page 5

INSTALLATION OF HEATER ASSEMBLY IN TANK (cont’d.)

G.Carefully unwind and straighten thermostat capillary tube. The capillary must be reasonably straight. Be absolutely certain the bulb is seated at bottom of well. Carefully coil any excess capil- lary and position next to thermostat and away from electrical con- nections. Repeat same procedure if low limit alarm is provided. Attach wire for overtemperature sensor to terminals.

NOTE: Over-temperature control is located in the Chromalox Control Center. If heater is supplied without control center, be sure to obtain an over-temperature control for a positive thermis- tor, otherwise heater will be without over-temperature protection.

H.If the low temperature thermostat is being used, connect annunci- ator leads directly to terminals on this thermostat and provide an independent power source. The switch rating is; 20 amp @ 115V, 15 amp @ 230V, pilot duty 125VA.

I.If temperature indicator is employed, wire in accordance with Figure J. Use wire size as recommended for connecting to control center.

J.Install control wiring through 3/4" conduit connection as indicat- ed on page 1. Leave lid off' terminal housing until operational check is completed. Install breather tube on the outside of the ter- minal box as shown on page 1, Make sure top of tube is at least 12" above the drainage water level. CAUTION: All conduit con- nections to terminal housing must be sealed to prevent entry of any water, water vapor or condensation into terminal housing. Breather tube length may be cut to shorten height, or extended for higher flood levels by using 3/8” compression tube coupling and 3/8” tubing, as desired between formed breather tube and elbow fitting on side of terminal housing.

L1

L2

L3

Circuit

Breaker

IL1

IL2

IL3

Fuses

F3

F4

F5

F6

F7

F8

F9

F10

F11

F1

F2

 

 

Terminal

 

C1

 

Blocks

 

1

 

 

AL1

 

 

 

 

AL2

 

 

 

 

AL3

2

C2

 

 

BL1

 

 

 

 

BL2

 

 

 

 

BL3

3

C3

 

 

CL1

 

 

 

 

CL2

 

 

 

 

CL3

 

H4

H2

H3

H1

H4

Ground

OCC & WCC Control Center

H2 H3 H1 H4 H3 H2 H1

240V480V

Power On

 

X2

X1

 

 

 

 

 

 

G

 

Off - On

 

 

 

 

 

ISS

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

1 5

5

 

5

4

Control Relay

 

 

 

Overtemp.

 

 

2 6

6

 

6

Probes

 

 

1CR

3 7

7

 

7

 

Heat

 

 

4 8

8

 

8

 

Htr. Contactor #1

A

1CR

Overtemp.

Terminal

Terminal

 

#1 Time Delay Relay(15 Sec.)

C1

 

Control

Block

 

Block

Non-Indicating

 

1 TDR

 

 

 

 

 

#2 Time Delay Relay(30 Sec.)

2 TDR

 

 

 

 

 

Temp. Control

Heat

A

1 TDR 2

 

 

 

Low Temp. Alarm

Heater Contactor #2

C2

 

 

 

Contacts (Optional)

 

 

 

 

 

 

Heat

A

2 TDR

3

 

 

 

Temperature

Heater Contactor #3

C3

 

 

 

Indicator (Optional)

 

 

 

 

 

 

 

 

 

 

 

Overtemp.

R

1CR

 

 

 

 

A2

 

NOTES: 1.

Contactor “1 CON” and no fuses are supplied on single stage models.

 

A1

 

2.

Used on two stage models - fuses “3FU thru 8FU” - Contactor

 

 

 

 

 

“2 Con” - Time delay relay “1TDR” - Pilot light “3LT”.

 

 

 

 

3.

Used on three stage models - fuses “3FU thru 11FU” - Contactor

 

Audible Alarm

 

 

 

“2 Con & 3 Con” - Time delay relay “1TDR & 2TDR” - Pilot

 

 

 

 

lights “3LT and 4LT”.

 

 

(Optional)

 

 

4.

Termistor connections: Necessary Jumpers - Factory Wired

 

 

 

 

 

1 Heater

2 Heaters

3 Heaters

Thermistors located on heater with leads in conduit riser.

One thremistor per heater tube.

Figure J

5

Image 5
Contents OCC or WCC Control Centers Catalog Number of RecommendedLength Width Catalog Net Wt 240 240V 480VGeneral PRE·INSTALLATION Check of HeaterUncrating and Handling of Heater MechanicalPreparation of Tank to Receive Heater Installation of Heater Assembly in TankManhole Cover MinStep Installation of Fxth Terminal HousingOCC & WCC Control Center Electrical and Operational Checks Installation of Remote Control CenterBreaker and panel switch are in off position Optional Equipment Chromalox Type TMC 7-DAY TimerAdjusting and Maintenance of Time Switch Renewal Parts Identification Replacement Parts for OCC and WCC Control CenterQty Description Part Number Replacement Parts for OCC and WCC Control Center cont’d104-071818-023 Page Limited Warranty

PN401 specifications

The Chromalox PN401 is a state-of-the-art industrial temperature controller designed to enhance the efficiency and reliability of heating applications. It embodies advanced technologies and features that cater to a wide array of industrial processes, making it a favorite among engineers and technicians.

One of the main features of the PN401 is its precise temperature control, which is vital for processes that require strict adherence to temperature specifications. The controller employs advanced PID (Proportional-Integral-Derivative) control algorithms, enabling it to maintain the desired temperature even in fluctuating environmental conditions. This ensures optimal performance of heating systems while minimizing energy consumption.

The PN401 is equipped with a user-friendly graphical interface, facilitating intuitive navigation through its extensive menu options. This interface allows users to easily configure parameters, monitor system status, and visualize temperature profiles. Additionally, it features real-time data logging capabilities, enabling users to track performance metrics over time. This data can be invaluable for troubleshooting and optimizing processes.

Durability is another key characteristic of the Chromalox PN401. Built with high-quality materials, this controller can withstand the rigors of industrial environments. It has a robust housing that protects it from dust, moisture, and mechanical impacts, ensuring reliability in even the most demanding settings.

With connectivity being increasingly vital in modern industry, the PN401 offers multiple communication protocols, including Modbus and Ethernet. This enables easy integration with existing control systems and facilitates remote monitoring, allowing operators to adjust settings and access data from anywhere.

The PN401 also supports various input types, including thermocouples and RTDs, making it versatile for different heating applications. Its ability to accommodate a range of sensors ensures compatibility with a variety of processes, enhancing its usability across different industrial sectors.

Safety features are paramount in the design of the PN401, which includes over-temperature protection and alarms to prevent overheating incidents. This not only protects equipment but also enhances workplace safety.

In summary, the Chromalox PN401 stands out as a robust and versatile temperature controller, equipped with advanced technologies that ensure precise control, user-friendly operation, and reliable performance in demanding industrial applications. Its durable design, extensive connectivity options, and safety features make it an ideal choice for any organization looking to optimize their heating processes.