Lennox S40 Installation And Setup Guide

32
Air Handler
Table 7. Air Handler Parameters
Parameter Description
About
Provides information concerning unit code, language support,
equipment type name, unit model number, unit serial number, unit
nominal capacity, number of heating states, heating capacity by
stage, indoor blower CFM range, control software revision, control
model number, control serial number, control hardware revision,
discharge air temp sensor, outdoor air temp sensor, protocol
revision number, device product level, factory installed transformer,
24VAC average power consumption, 24VAC peak power
consumption, line voltage average power consumption, line voltage
peak power consumption, compatible devices list, applicable code
memory size, and micro-controller part number.
Airow Prole
- Cooling
Options are:
1 - No delays.
2 - ON: No delays; OFF: 45 sec delay.
3 - ON: 82% - 7-1/2 minutes; OFF: No delays.
4 - ON: 50% - 30 seconds at 82% - 7-1/2 minutes at 100% and
nish cycle 50% / 30 seconds off.
Continuous Indoor
Blower Airow
Range of operation of the indoor blower during continuous blower
operation.
The range is 450 to 2150 CFM. Default is dependent on component
match-up. Incremental adjustments are made in 5 CFM.
NOTE: All thermostat parameter default CFM values are based
on Air Handler Control (AHC) DIP switch setting (non-
communicating value) prior to power up. This dip switch
settings are use and calculated using CFM conversion
tables. They are then rounded up to closest number on
25 CFM resolution. Any DIP switch changes made after
power up are ignore.
Cooling Indoor
Blower Off Delay
The range is 0 - 30 seconds. Default is 0 seconds with an
incremental adjustment of 2 seconds.
Cooling Indoor
Blower On Delay
The range is 0 - 10 seconds. Default is 2 seconds with an
incremental adjustment of 1 second.
Electric Heating
Airow
Range of operation of the indoor blower during electric heat
operation.
The range is 1560 to 2150 CFM. Default is dependent on unit
capacity with an incremental adjustment of 5 CFM.
Equipment Name
A unique name can be assigned to this component. Name can be
up to 29 characters. Name can consist of letters, numbers, special
characters and spaces.
Heating Indoor
Blower Off Delay
Heating Indoor Blower OFF Delay (Electric Heat only -Blower runs
at continuous air CFM setting during delay timing period).
The range is 0 - 10 seconds. Default is 10 seconds with an
incremental adjustment of 1 second.
Table 7. Air Handler Parameters
Parameter Description
Heating Indoor
Blower On Delay
The range is 0 - 5 seconds. Default is 0 seconds with an
incremental adjustment of 1 second.
High Cooling
Airow
Range of operation of the indoor blower during high cooling
operation.
The range is 1560 to 2150 CFM. Default is based on cooling
demand with an incremental adjustments of 25 CFM.
High HP Airow
Range of operation of the indoor blower during high heat pump
operation.
Information below is example only and exact air ow range is
dependent on equipment tonnage. Use your example and add
adjustment increments of +/-25 CFM
Example: The range is 800 -1100 CFM. Default setting is
depending on unit tonnage. Can be incrementally adjusted by 25
CFM.
HP Indoor Blower
Off Delay
Heat Pump Indoor Blower OFF Delay (Heat Pump only - Blower
runs at continuous air CFM setting during delay timing period).
The range is 0 - 60 seconds. Default is 45 seconds with an
incremental adjustment of 5 seconds.
HP Indoor Blower
On Delay
The range is 0 - 30 seconds. Default is 0 seconds with an
incremental adjustment of 5 seconds.
Low Cooling
Airow
Range of operation of the indoor blower during low cooling
operation.
The range is 450.0 to 2150 CFM. Default is based on cooling
demand with an incremental adjustments of 25 CFM.
Low HP Airow
Range of operation of the indoor blower during low heat pump
operation.
Information below is example only and exact air ow range is
dependent on equipment tonnage. Use your example and add
adjustment increments of +/-25 CFM.
Example: The range is 450 - 600 CFM. Default setting is depending
on unit tonnage. Can be incrementally adjusted by 25 CFM.
Reset Air Handler
Any installer modications under the air handler tab will be reset
back to the factory defaults if the reset air handler option is used.

Lennox S40 Specifications

General

Brand	Lennox
Model	S40
Category	Thermostat
Language	English