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Honeywell Pressuretrol P7810A User Manual

Honeywell Pressuretrol P7810A
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PRODUCT DATA
65-0268-1
® U.S. Registered Trademark
Copyright © 2002 Honeywell • All Rights Reserved
P7810A-D
Pressuretrol® Controller
APPLICATION
The P7810 Pressuretrol® Controller is a line voltage pressure
controller for pressure systems up to 300 psi (2069 kPa). Four
models are available:
P7810A—On/Off Control
P7810B—On/Off Control with 4 to 20 mA modulation.
P7810C—On/Off Control, High Limit and 4 to 20 mA
modulation.
P7810D—On/Off Control with High Limit.
FEATURES
Use only with steam, air or noncombustible gases that
do not corrode the pressure sensing element.
Models available with on-off control function, on-off
control and modulate, high limit and modulate, and
on-off control and safety high limit functions.
Models available in 15, 150 and 300 psi (103, 1034 and
2069 kPa) maximum setpoints.
LED indicators show power, call for heat function and
lockout status.
Clear cover allows setpoint and differential to be read,
but not adjusted, without opening cover, (Cover
optional for P7810A,B models.)
Manual reset possible without opening cover.
Electronic maximum fixed stop limit.
P7810A, B
P7810C, D
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 3
Wiring ............................................................................... 5
Operation .......................................................................... 7
Checkout .......................................................................... 11
Troubleshooting ................................................................ 12
Service Information .......................................................... 12
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Honeywell Pressuretrol P7810A Specifications

General IconGeneral
ModelP7810A
BrandHoneywell
Set Point AdjustmentAdjustable
Switch TypeSPDT
Differential AdjustmentAdjustable
ApplicationBoiler Control
Electrical ConnectionsScrew Terminals
Maximum Sustained Pressure30 psi
ApprovalsUL, CSA
Differential TypeFixed or adjustable
TypePressuretrol Controller
Electrical Rating15A at 120/240 VAC
MountingSurface Mount

Summary

Features

Available Models and Setpoints

Details on available control functions, modulation, high limit, and maximum setpoints.

LED Indicators and Cover Features

Description of LEDs for status indication and features like clear cover and manual reset.

Application Overview

P7810 Pressuretrol Controller Models

Lists the four available P7810 Pressuretrol Controller models for pressure systems.

Specifications

Model and Electrical Specifications

Details on model functions, power input, consumption, and switch contact ratings.

Material, Connector, and Approvals

Specifications for sensor/case material, pressure connector, and product approvals.

Environmental Ratings and Accessories

Operating/storage environmental limits, dimensions, weight, and available accessories.

Ordering Information

Product Ordering and Contact Information

Guidance on ordering products, referencing catalogs, and obtaining further information.

Installation

Installation Precautions and Location

Safety warnings and guidelines for selecting the optimal installation location.

Mounting and Remote Location Mounting

Instructions for mounting the controller and specific advice for high-vibration environments.

Wiring

Wiring Safety and Compliance

Critical safety warnings and requirements for compliance with electrical codes.

Modulating Output and General Wiring

Specific instructions for 4 to 20 mA output wiring and general wiring practices.

Operation

Pressure On/Off Control Function

How the on/off control function operates based on pressure setpoints and differentials.

Modulate Control Function (P7810B,C)

Details on the 4 to 20 mA modulation output based on pressure for specific models.

Limit Function (P7810C,D)

Explanation of Maximum Fixed Stop Limit and High Limit setpoints for safety shutdown.

Setting Controls

Setting Maximum Fixed Stop Limit Value

Procedure for setting the maximum fixed stop limit value on P7810C,D models.

Reset Switch Functions and Controller Setup

Explains reset switch functions and general guidance for adjusting setpoints/differentials.

Modifying and Checking Fixed Stop Limit

Steps to change the maximum fixed stop limit and verify its stored value.

Setting High Limit and Control Parameters

How to set high limit setpoints, on/off controls, and modulation parameters.

LED Display Interpretation

Explanation of LED indicators for status, faults, and operational modes.

Checkout

Checkout Procedure Overview

Step-by-step guide to verify proper controller operation after installation.

Control Setpoint and Modulation Checkout

Procedures to check the accuracy of control setpoints, differentials, and modulation.

Troubleshooting

Troubleshooting Fault Codes

Table of LED fault codes and recommended troubleshooting steps for system failures.

Service Information

Calibration and Maintenance

Information on factory calibration and routine maintenance for the controller.

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