Brochure
140H SERIES
Specifications
The 140H Series is a high efciency, ultra-low NOx condensing model with up to
0.91 Uniform Energy Factor, allowing for the use of 3”or 4” PVC venting or Category
IV stainless steel. Indoor models have an integrated temperature controller and
outdoor models include a remote control as a standard feature.
Model Number* Type
Gas Consumption Input Inlet Gas Pressure**
UEF
Minimum
(BTU/H)
Maximum
(BTU/H)
Minimum
(in. W.C.)
Maximum
(in. W.C.)
ATI-140H-N Natural 15,000 120,000 4.0 10.5 0.90
ATO-140H-N Natural 15,000 120,000 4.0 10.5 0.91
Model Number*
Maximum
GPM
Hot/Cold
Connections
Gas
Connection
Clearances (in.)
Approx
Shipping
Weight (lbs)
Top Bottom Side Front
ATI-140H-N 6.6 3/4" NPT 1/2" NPT 12 12 3 4 54
ATO-140H-N 6.6 3/4" NPT 1/2" NPT 36 12 3 24 52
*For propane models, change “N” to “P”
**For propane models, minimum fire is 13,000 BTU/H, minimum inlet gas pressure is 8.0 in. W.C. and maximum inlet gas pressure is 14.0 in. W.C.
ANSI Z21.10.3 • CSA 4.3
CONDENSING
140H
Temperature
Settings
Dipswitches 120°F (default) 140°F
With 100209924 remote (max. distance 400’ from heater, non-polarized 120 gauge wiring.)
100°F to 140°F with 5°F intervals (9 options), 120°F Default Factory Setting
Electric 120 V 54 W / 0.7 A (Operation) 3 W / 0.05 A (Standby) 224 W / 2 A (Freeze-Protection)
ATO-140HATI-140H
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