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Lennox ML193UH110XE60C - Page 18

Lennox ML193UH110XE60C
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ξ˜³ξ™„ξ™Šξ™ˆξ˜ƒξ˜”ξ˜›
C- Blower Compartment
IMPORTANT
Each blower is statically and dynamically balanced
as an assembly before installation in the unit.
ξ˜°ξ˜―ξ˜”ξ˜œξ˜–ξ˜Έξ˜«ξ˜¨ξ˜ƒ ξ™˜ξ™‘ξ™Œξ™—ξ™–ξ˜ƒ ξ™„ξ™•ξ™ˆξ˜ƒ ξ™ˆξ™”ξ™˜ξ™Œξ™“ξ™“ξ™ˆξ™‡ξ˜ƒ ξ™šξ™Œξ™—ξ™‹ξ˜ƒ ξ™„ξ˜ƒ ξ™†ξ™’ξ™‘ξ™–ξ™—ξ™„ξ™‘ξ™—ξ˜ƒ ξ™—ξ™’ξ™•ξ™”ξ™˜ξ™ˆξ˜ƒ
ξ˜¨ξ˜¦ξ˜°ξ˜ƒξ™ξ™’ξ™—ξ™’ξ™•ξ˜‘ξ˜ƒξ˜¬ξ™—ξ˜ƒξ™‹ξ™„ξ™–ξ˜ƒ ξ™„ξ˜ƒ ξ˜§ξ˜¦ξ˜ƒ ξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒξ™†ξ™’ξ™˜ξ™“ξ™ξ™ˆξ™‡ξ˜ƒ ξ™—ξ™’ξ˜ƒ ξ™„ξ™‘ξ˜ƒ ξ™ˆξ™ξ™ˆξ™†ξ™—ξ™•ξ™’ξ™‘ξ™Œξ™†ξ˜ƒ
ξ™†ξ™’ξ™‘ξ™—ξ™•ξ™’ξ™ξ˜ƒξ™ξ™’ξ™‡ξ™˜ξ™ξ™ˆξ˜ƒξ™…ξ™’ξ™—ξ™‹ξ˜ƒξ™†ξ™’ξ™‘ξ™—ξ™„ξ™Œξ™‘ξ™ˆξ™‡ξ˜ƒξ™Œξ™‘ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™–ξ™„ξ™ξ™ˆξ˜ƒξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒξ™‹ξ™’ξ™˜ξ™–ξ™Œξ™‘ξ™Šξ˜‘ξ˜ƒ
ξ˜·ξ™‹ξ™ˆξ˜ƒ ξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒ ξ™Œξ™–ξ˜ƒ ξ™“ξ™•ξ™’ξ™Šξ™•ξ™„ξ™ξ™ξ™ˆξ™‡ξ˜ƒξ™—ξ™’ξ˜ƒ ξ™“ξ™•ξ™’ξ™™ξ™Œξ™‡ξ™ˆξ˜ƒ ξ™†ξ™’ξ™‘ξ™–ξ™—ξ™„ξ™‘ξ™—ξ˜ƒ ξ™—ξ™’ξ™•ξ™”ξ™˜ξ™ˆξ˜ƒξ™„ξ™—ξ˜ƒ
ξ™ˆξ™„ξ™†ξ™‹ξ˜ƒξ™’ξ™‰ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξšΏξ™™ξ™ˆξ˜ƒξ™–ξ™ˆξ™ξ™ˆξ™†ξ™—ξ™„ξ™…ξ™ξ™ˆξ˜ƒξ™–ξ™“ξ™ˆξ™ˆξ™‡ξ˜ƒξ™—ξ™„ξ™“ξ™–ξ˜‘ξ˜ƒξ˜¨ξ™„ξ™†ξ™‹ξ˜ƒξ™—ξ™„ξ™“ξ˜ƒξ™•ξ™ˆξ™”ξ™˜ξ™Œξ™•ξ™ˆξ™–ξ˜ƒ
ξ˜•ξ˜—ξ˜ƒξ™™ξ™’ξ™ξ™—ξ™–ξ˜ƒξ™—ξ™’ξ˜ƒξ™ˆξ™‘ξ™ˆξ™•ξ™Šξ™Œξ™ξ™ˆξ˜‘
Input Voltage Requirements
ξ˜·ξ™‹ξ™ˆξ˜ƒξ™†ξ™Œξ™•ξ™†ξ™˜ξ™Œξ™—ξ˜ƒξ™Œξ™–ξ˜ƒξ™‡ξ™ˆξ™–ξ™Œξ™Šξ™‘ξ™ˆξ™‡ξ˜ƒξ™—ξ™’ξ˜ƒξ™…ξ™ˆξ˜ƒξ™’ξ™“ξ™ˆξ™•ξ™„ξ™—ξ™ˆξ™‡ξ˜ƒξ™šξ™Œξ™—ξ™‹ξ˜ƒξ˜€ξ˜¦ξ˜ƒξ™™ξ™’ξ™ξ™—ξ™„ξ™Šξ™ˆξ˜‘ξ˜ƒξ˜·ξ™’ξ˜ƒ
ξ™ˆξ™‘ξ™„ξ™…ξ™ξ™ˆξ˜ƒξ™„ξ˜ƒξ™—ξ™„ξ™“ξ˜ƒξ™•ξ™ˆξ™”ξ™˜ξ™Œξ™•ξ™ˆξ™–ξ˜ƒξ˜”ξ˜•ξ˜ƒξ™—ξ™’ξ˜ƒξ˜–ξ˜–ξ˜Ήξ˜€ξ˜¦ξ˜‘ξ˜ƒξ˜¨ξ™›ξ™“ξ™ˆξ™†ξ™—ξ™ˆξ™‡ξ˜ƒξ™†ξ™˜ξ™•ξ™•ξ™ˆξ™‘ξ™—ξ˜ƒξ™‡ξ™•ξ™„ξ™šξ˜ƒ
ξ™šξ™Œξ™ξ™ξ˜ƒξ™…ξ™ˆξ˜ƒξ™ξ™ˆξ™–ξ™–ξ˜ƒξ™—ξ™‹ξ™„ξ™‘ξ˜ƒξ˜•ξ˜“ξ™ξ˜€ξ˜‘
Troubleshooting the Motor
ξ˜·ξ™•ξ™’ξ™˜ξ™…ξ™ξ™ˆξ™–ξ™‹ξ™’ξ™’ξ™—ξ™Œξ™‘ξ™Šξ˜ƒ ξ™—ξ™‹ξ™ˆξ˜ƒ ξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒ ξ™Œξ™–ξ˜ƒ ξ™„ξ™‘ξ˜ƒ ξ™ˆξ™„ξ™–ξ™œξ˜ƒ ξ™“ξ™•ξ™’ξ™†ξ™ˆξ™–ξ™–ξ˜‘ξ˜ƒ ξ˜©ξ™’ξ™ξ™ξ™’ξ™šξ˜ƒ
ξ™–ξ™—ξ™ˆξ™“ξ™–ξ˜ƒξ™…ξ™ˆξ™ξ™’ξ™šξ˜‘
ξ˜”ξ˜ξ˜ƒξ˜Άξ™‹ξ™˜ξ™—ξ˜ƒξ™’σ°€¨ξ˜ƒξ™“ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™—ξ™’ξ˜ƒξ™˜ξ™‘ξ™Œξ™—ξ˜‘
ξ˜•ξ˜ξ˜ƒξ˜΅ξ™ˆξ™ξ™’ξ™™ξ™ˆξ˜ƒξ™Œξ™‘ξ™“ξ™˜ξ™—ξ˜ƒξ™“ξ™ξ™˜ξ™Šξ™–ξ˜ƒξ˜³ξ˜—ξ˜›ξ˜ƒξ™„ξ™‘ξ™‡ξ˜ƒξ˜³ξ˜—ξ˜œξ˜ƒξ™‰ξ™•ξ™’ξ™ξ˜ƒξ™ξ™’ξ™—ξ™’ξ™•ξ˜‘ξ˜ƒξ˜Άξ™ˆξ™ˆξ˜ƒξ˜©ξ˜¬ξ˜ͺ-
ξ˜Έξ˜΅ξ˜¨ξ˜ƒξ˜”ξ˜™ξ˜ƒξ™‰ξ™’ξ™•ξ˜ƒξ™—ξ™•ξ™’ξ™˜ξ™…ξ™ξ™ˆξ™–ξ™‹ξ™’ξ™’ξ™—ξ™Œξ™‘ξ™Šξ˜ƒξ™“ξ™•ξ™’ξ™†ξ™ˆξ™‡ξ™˜ξ™•ξ™ˆξ˜‘
Note - FIGURE 16 is a typical ignition control illustration.
ξ˜¬ξ™‰ξ˜ƒ ξ™†ξ™’ξ™•ξ™•ξ™ˆξ™†ξ™—ξ˜ƒ ξ™™ξ™’ξ™ξ™—ξ™„ξ™Šξ™ˆξ˜ƒ ξ™Œξ™–ξ˜ƒ ξ™“ξ™•ξ™ˆξ™–ξ™ˆξ™‘ξ™—ξ˜ƒ ξ™Œξ™‘ξ˜ƒ ξ™—ξ™ˆξ™–ξ™—ξ™–ξ˜ƒ ξ˜”ξ˜ƒ ξ™„ξ™‘ξ™‡ξ˜ƒ ξ˜•ξ˜ƒ ξ™„ξ™‘ξ™‡ξ˜ƒ ξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒ
ξ™Œξ™–ξ˜ƒξ™‘ξ™’ξ™—ξ˜ƒξ™’ξ™“ξ™ˆξ™•ξ™„ξ™—ξ™Œξ™‘ξ™Šξ˜ƒξ™“ξ™•ξ™’ξ™“ξ™ˆξ™•ξ™ξ™œξ˜ξ˜ƒξ™•ξ™ˆξ™“ξ™ξ™„ξ™†ξ™ˆξ˜ƒξ™ξ™’ξ™—ξ™’ξ™•ξ˜‘ξ˜ƒξ˜·ξ™‹ξ™ˆξ˜ƒξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒξ™Œξ™–ξ˜ƒξ™‘ξ™’ξ™—ξ˜ƒ
ξšΏξ™ˆξ™ξ™‡ξ˜ƒξ™•ξ™ˆξ™“ξ™„ξ™Œξ™•ξ™„ξ™…ξ™ξ™ˆξ˜‘
ξ˜¬ξ™‰ξ˜ƒ ξ™•ξ™ˆξ™“ξ™ξ™„ξ™†ξ™Œξ™‘ξ™Šξ˜ƒ ξ™—ξ™‹ξ™ˆξ˜ƒ ξ™Œξ™‘ξ™‡ξ™’ξ™’ξ™•ξ˜ƒ ξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒ ξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒ ξ™’ξ™•ξ˜ƒ ξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒ ξ™šξ™‹ξ™ˆξ™ˆξ™ξ˜ƒ ξ™Œξ™–ξ˜ƒ
ξ™‘ξ™ˆξ™†ξ™ˆξ™–ξ™–ξ™„ξ™•ξ™œξ˜ξ˜ƒ ξ™“ξ™ξ™„ξ™†ξ™ˆξ™ξ™ˆξ™‘ξ™—ξ˜ƒ ξ™Œξ™–ξ˜ƒ ξ™†ξ™•ξ™Œξ™—ξ™Œξ™†ξ™„ξ™ξ˜‘ξ˜ƒξ˜·ξ™‹ξ™ˆξ˜ƒ ξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™šξ™‹ξ™ˆξ™ˆξ™ξ˜ƒ ξ™ξ™˜ξ™–ξ™—ξ˜ƒ
ξ™…ξ™ˆξ˜ƒξ™†ξ™ˆξ™‘ξ™—ξ™ˆξ™•ξ™ˆξ™‡ξ˜ƒξ™Œξ™‘ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™‹ξ™’ξ™˜ξ™–ξ™Œξ™‘ξ™Šξ˜ƒξ™„ξ™–ξ˜ƒξ™–ξ™‹ξ™’ξ™šξ™‘ξ˜ƒξ™Œξ™‘ξ˜ƒξ˜©ξ˜¬ξ˜ͺξ˜Έξ˜΅ξ˜¨ξ˜ƒ
ξ˜”ξ˜–ξ˜‘ξ˜ƒξ˜Ίξ™‹ξ™ˆξ™‘ξ˜ƒξ™•ξ™ˆξ™“ξ™ξ™„ξ™†ξ™Œξ™‘ξ™Šξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™Œξ™‘ξ™‡ξ™’ξ™’ξ™•ξ˜ƒξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™–ξ™ˆξ™—ξ˜ƒξ™–ξ™†ξ™•ξ™ˆξ™šξ˜ƒ
ξ™ξ™˜ξ™–ξ™—ξ˜ƒ ξ™…ξ™ˆξ˜ƒ ξ™„ξ™ξ™Œξ™Šξ™‘ξ™ˆξ™‡ξ˜ƒ ξ™„ξ™‘ξ™‡ξ˜ƒ ξ™—ξ™Œξ™Šξ™‹ξ™—ξ™ˆξ™‘ξ™ˆξ™‡ξ˜ƒ ξ™šξ™Œξ™—ξ™‹ξ˜ƒ ξ™—ξ™‹ξ™ˆξ˜ƒ ξ™ξ™’ξ™—ξ™’ξ™•ξ˜ƒ ξ™–ξ™‹ξ™„ξ™‰ξ™—ξ˜ƒ ξ™„ξ™–ξ˜ƒ
ξ™–ξ™‹ξ™’ξ™šξ™‘ξ˜ƒξ™Œξ™‘ξ˜ƒξ˜©ξ˜¬ξ˜ͺξ˜Έξ˜΅ξ˜¨ξ˜ƒξ˜”ξ˜—ξ˜‘
9. Secondary Limit Controls
ξ˜·ξ™‹ξ™ˆξ˜ƒξ™–ξ™ˆξ™†ξ™’ξ™‘ξ™‡ξ™„ξ™•ξ™œξ˜ƒξ™ξ™Œξ™ξ™Œξ™—ξ˜ƒξ™Œξ™–ξ˜ƒξ™ξ™’ξ™†ξ™„ξ™—ξ™ˆξ™‡ξ˜ƒξ™Œξ™‘ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™†ξ™’ξ™ξ™“ξ™„ξ™•ξ™—ξ™ξ™ˆξ™‘ξ™—ξ˜ƒ
ξ™’ξ™‘ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™…ξ™„ξ™†ξ™Žξ˜ƒξ™–ξ™Œξ™‡ξ™ˆξ˜ƒξ™’ξ™‰ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™‹ξ™’ξ™˜ξ™–ξ™Œξ™‘ξ™Šξ˜‘ξ˜ƒξ˜Άξ™ˆξ™ˆξ˜ƒξ˜©ξ˜¬ξ˜ͺξ˜Έξ˜΅ξ˜¨ξ˜ƒξ˜”ξ˜˜ξ˜‘ξ˜ƒ
ξ˜Ίξ™‹ξ™ˆξ™‘ξ˜ƒξ™ˆξ™›ξ™†ξ™ˆξ™–ξ™–ξ˜ƒξ™‹ξ™ˆξ™„ξ™—ξ˜ƒξ™Œξ™–ξ˜ƒξ™–ξ™ˆξ™‘ξ™–ξ™ˆξ™‡ξ˜ƒξ™Œξ™‘ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™†ξ™’ξ™ξ™“ξ™„ξ™•ξ™—ξ™ξ™ˆξ™‘ξ™—ξ˜ξ˜ƒ
ξ™—ξ™‹ξ™ˆξ˜ƒξ™ξ™Œξ™ξ™Œξ™—ξ˜ƒξ™šξ™Œξ™ξ™ξ˜ƒξ™’ξ™“ξ™ˆξ™‘ξ˜‘ξ˜ƒξ˜¬ξ™‰ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™ξ™Œξ™ξ™Œξ™—ξ˜ƒξ™Œξ™–ξ˜ƒξ™’ξ™“ξ™ˆξ™‘ξ˜ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™‰ξ™˜ξ™•ξ™‘ξ™„ξ™†ξ™ˆξ˜ƒξ™†ξ™’ξ™‘ξ™—ξ™•ξ™’ξ™ξ˜ƒ
ξ™ˆξ™‘ξ™ˆξ™•ξ™Šξ™Œξ™ξ™ˆξ™–ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™–ξ™˜ξ™“ξ™“ξ™ξ™œξ˜ƒξ™„ξ™Œξ™•ξ˜ƒξ™…ξ™ξ™’ξ™šξ™ˆξ™•ξ˜ƒξ™„ξ™‘ξ™‡ξ˜ƒξ™†ξ™ξ™’ξ™–ξ™ˆξ™–ξ˜ƒξ™—ξ™‹ξ™ˆξ˜ƒξ™Šξ™„ξ™–ξ˜ƒξ™™ξ™„ξ™ξ™™ξ™ˆξ˜‘ξ˜ƒ
ξ˜·ξ™‹ξ™ˆξ˜ƒξ™ξ™Œξ™ξ™Œξ™—ξ˜ƒξ™„ξ™˜ξ™—ξ™’ξ™ξ™„ξ™—ξ™Œξ™†ξ™„ξ™ξ™ξ™œξ˜ƒξ™•ξ™ˆξ™–ξ™ˆξ™—ξ™–ξ˜ƒ ξ™šξ™‹ξ™ˆξ™‘ξ˜ƒ ξ™˜ξ™‘ξ™Œξ™—ξ˜ƒ ξ™—ξ™ˆξ™ξ™“ξ™ˆξ™•ξ™„ξ™—ξ™˜ξ™•ξ™ˆξ˜ƒ ξ™•ξ™ˆ-
ξ™—ξ™˜ξ™•ξ™‘ξ™–ξ˜ƒξ™—ξ™’ξ˜ƒξ™‘ξ™’ξ™•ξ™ξ™„ξ™ξ˜‘ξ˜ƒξ˜·ξ™‹ξ™ˆξ˜ƒξ™–ξ™ˆξ™†ξ™’ξ™‘ξ™‡ξ™„ξ™•ξ™œξ˜ƒξ™ξ™Œξ™ξ™Œξ™—ξ˜ƒξ™†ξ™„ξ™‘ξ™‘ξ™’ξ™—ξ˜ƒξ™…ξ™ˆξ˜ƒξ™„ξ™‡ξ™ξ™˜ξ™–ξ™—ξ™ˆξ™‡ξ˜‘
Center Blower Wheel
in Blower Housing
BLOWER WHEEL REPLACEMENT
FIGURE 13
Set Screw
Housing Hub
ALIGN AND TIGHTEN SET SCREW WITH
FLAT SIDE OF MOTOR SHAFT
Motor
Shaft
FIGURE 14
SECONDARY LIMIT CONTROL
Secondary Limits
FIGURE 15

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