Johnson T500 Series User Manual

FANs 216, 1628.3
Product/Technical Bulletin T500
Issue Date 0899
© 1999 Johnson Controls, Inc.
1
Part No. 24-8341-19, Rev. C www.johnsoncontrols.com
Code No. LIT-216178
T500 Series Non-Programmable Thermostats
T500 Series Thermostats provide an economical
control solution for single-stage, multi-stage, or heat
pump systems. Two temperature settings can be
selected, as well as heat, cool, automatic
changeover, and off modes.
Thermostats are available in the following types:
T500HCN-1 (1 heat/1 cool), T500HPN-1 (heat pump,
3 heat, 2 cool), T500MSN-1 (2 heat/2 cool). Each
thermostat is packaged with the necessary mounting
hardware, and installation is simple and fast for
reduced cost.
Figure 1: T500 Series Non-Programmable
Thermostats
Features and Benefits
!
!!
!
Low-Profile Design
Compliments any decor
!
!!
!
No Batteries Required
Retains programmed setpoints upon loss of
power
!
!!
!
Lockable Access Cover and
Keypad Lockout
Prevents unauthorized changes
!
!!
!
Full Function Liquid Crystal
Display (LCD)
Makes controls easy to read, easy to use
!
!!
!
Fuzzy Logic Control
Optimizes control performance

Johnson T500 Series Specifications

General

Brand	Johnson
Model	T500 Series
Category	Thermostat
Language	English

Summary

Product Introduction and Features

Features and Benefits

Summarizes key advantages like low profile, no batteries, tamper prevention, clear display, and fuzzy logic.

Installation and Location

Location Considerations

Installation and Wiring

Guides users through the physical installation and wiring process of the thermostat.

Thermostat Configuration

DIP Switch Selections

Explains the function of DIP switches for configuring the T500HCN-1 thermostat.

T500HPN-1 Configuration and Wiring

T500MSN-1 Configuration and Wiring

Wiring Diagrams and Terminals (T500HCN-1)

T500HCN-1 Output Terminal Designations

Details the function of each terminal for wiring the T500HCN-1 thermostat.

Thermostat Operation

Commissioning and Operation Overview

Mode Selection and Fan Control

Setting the Thermostat

Advanced Operation and Troubleshooting

Fuzzy Logic Control

Troubleshooting Guide

Provides solutions for common issues like no display, inoperative keyboard, or call failures.