Lennox SIGNATURE SLP99DFV User Manual

Page 47
BLOWER DATA
SLP99DF110XV60C BLOWER PERFORMANCE (less lter)
HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range
Heating Adjust CFM Selections
Heating Input Range and Blower Volume - CFM
35% 40% 50% 60% 70% 80% 90% 100%
Increase (+15%) Heat CFM 811 906 1096 1286 1475 1665 1855 2045
Increase (+7.5%) Heat CFM 744 835 1017 1199 1380 1562 1744 1926
Default Heat CFM 677 764 938 1112 1285 1459 1633 1807
Decrease (-7.5% ) Heat CFM 626 707 869 1031 1193 1355 1517 1679
Decrease (-15% ) Heat CFM 575 650 800 950 1101 1251 1401 1551
COOLING BLOWER PERFORMANCE - 0 through 1.0 in. w.g. External Static Pressure Range
Cooling Adjust CFM
Selections
Blower Speed Selections
First Stage Cool Speed - cfm Second Stage Cool Speed - cfm
Low Medium-
Low
Medium
High
High
(Default)
Low Medium-
Low
Medium
High
High
(Default)
Increase (+10%) Cool CFM 1090 1260 1395 1580 1580 1790 1990 2180
Default Cool CFM 965 1125 1285 1440 1440 1625 1845 2000
Decrease (-10%) Cool CFM 860 1030 1125 1270 1270 1470 1655 1845
The e󰀨ect of static pressure is included in air volumes shown.
The following control congurations are available. See Installation Instructions for details and DIP switch settings.
Heat Modes Available (Heating Blower Performance Table):
Single-stage thermostat:
- 35%, 70%, 100% input (three-stage) with time delays in-between
Two-stage thermostat:
- Variable Rate Capacity Mode - furnace automatically adjusts ring rate based on rst- and second-stage cycle times.
- W1 demand at 70% input, W2 demand at 100% input. No delay between stages.
Cool Mode Available (Cooling Blower Performance Table):
First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan speeds are approximately 28% and 38% (DIP switch selectable) of the same second-stage COOL speed position minimum 250 cfm.
Lennox iHarmony
®
Zoning System Applications - Minimum blower speed is 450 cfm.
TABLE 24
Allowable Heating Speeds
SLP99DF
Model
-15% -7.5% Default +7.5% +15%
All Models Allowed Allowed Factory Allowed Allowed
TABLE 25
Allowable Circulation Speeds
SLP99DF Model
28%
(Second Stage Cool)
38%
(second stage cool)
All Models Allowed Factory Setting

Lennox SIGNATURE SLP99DFV Specifications

General

Brand	Lennox
Model	SIGNATURE SLP99DFV
Category	Furnace
Language	English