Lennox HARMONY II, Руководство по установке, Страница: 1 / 30

04/06 505,023M
*2P0406* *P505023M* Page 1
E
2006 Lennox Industries Inc.
Dallas, Texas, USA
IMPORTANT
LENNOX recommends ONLY Harmony II
®
and
Harmony III
t
Zone Control Systems for use with
Variable Speed Blower Motor (VSM) technology.
INSTALLATION
INSTRUCTIONS
Harmony III
t
Zone Control
System
ZONING
505,023M
04/06
Supersedes 01/06
Table of Contents
Shipping & Packing List 1 . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Residential Zone Control System − Field Wiring 2 . . . .
System Components 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Separately-Ordered System Components 3 . . . . . . . . .
Install Heating and Cooling Equipment 4 . . . . . . . . . . .
Component Installation 4 . . . . . . . . . . . . . . . . . . . . . . . .
Blower Speed Adjustment 6 . . . . . . . . . . . . . . . . . . . . . .
Zone Control System Jumper Settings 8 . . . . . . . . . . .
Common System Component Wiring 12 . . . . . . . . . . . . .
Component Specific Wiring 13 . . . . . . . . . . . . . . . . . . . . .
System Operation 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation & Troubleshooting Indicators 18 . . . . . . . . . . .
Fault Recall & Time Delay Override 18 . . . . . . . . . . . . . .
Time Delays 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New System Start−Up & Checkout 19 . . . . . . . . . . . . . . .
Gas Heating Checkout − Single Zone 20 . . . . . . . . . . . . .
Gas Heating Checkout − Multiple Zone 20 . . . . . . . . . . .
Gas Heating Checkout − Central Control 21 . . . . . . . . . .
Heat Pump Heating Checkout − Single Zone 21 . . . . . .
Heat Pump Heating Checkout − Multiple Zone 22 . . . . .
Heat Pump Heating Checkout − Central Control 22 . . . .
Troubleshooting 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics Codes 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Diagrams 27 . . . . . . . . . . . . . . . . . . . . . .
PIAB Calculation Worksheet 30 . . . . . . . . . . . . . . . . . . . .
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
Shipping & Packing List
Items shipped with the Harmony III
t
Zone Control System
include:
1 − Zone Control System circuit board
1 − Discharge Air Sensor
Additional items (ordered separately; see requirements on
Page 3) include:
Transformer
Dampers
Thermostats
Balance Point Sensor (56A83)
(For Heat Pump Option)
Pressureswitch: R−22 (21J18); R−410A (51M08)
Introduction
The Lennox Harmony III
t
Zone Control System manages
the distribution of conditioned air to specific areas or zones
in a house or small commercial building. The system di-
rects heated or cooled air to occupied areas without condi-
tioning unused areas. This control maximizes economy
while providing a balanced and comfortable environment.
The system can be used in any of the following Lennox
HVAC system application options:
1. Variable speed gas furnace and either a single− or two-
stage condensing unit.
2. Variable speed blower coil unit with electric heat and
either a single− or two-stage heat pump or air condi-
tioner.
3. Variable speed gas furnace and heat pump.
Variations on the options described above and included in
this document are: cooling−only, hot water coil, and cooling
system with electric heat applications.
Litho U.S.A.