Brochure
340H SERIES
ATI-340H ATO-340H
Specifications
The 340H series offers high efciency Ultra-Low NOx condensing technology allowing
for the use of 3” PVC venting and has 0” clearance to combustibles. Indoor models
are certied up to 10,100 ft. altitude. 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-340H-N Natural 15,000 180,000 4.0 10.5 0.95
ATO-340H-N Natural 15,000 180,000 4.0 10.5 0.94
*For propane models, change “N” to “P”
**For propane models, minimum fire rate 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
Model Number*
Maximum
GPM
Hot/Cold
Connections
Gas
Connection
Clearances (in.)
Approx
Shipping
Weight (lbs)
Top Bottom Side Front
ATI-340H-N 8 3/4" NPT 3/4" NPT 12 12 3 4 71
ATO-340H-N 8 3/4" NPT 3/4" NPT 36 12 3 24 69
340H
Temperature
Settings
Built In / without remote 120°F (default) 140°F
With 100209924 remote (max. distance 400’ from heater, non-polarized 20 gauge wiring.)
100°F to 140°F with 5°F intervals (9 options), 120°F Default Factory Setting
Electric 120 V 78 W / 0.65 A (Operation) 3 W / 0.03 A (Standby) 174 W / 1.5 A (Freeze-Protection)
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