Trane Horizon OAND Series - Indirect Fired Gas Heat Start-Up; Furnace Data; Gas Pressure Settings; Electric Heat Start-Up

Start-Up Form
124 OAU-SVX007A-EN
Indirect Fired Gas Heat Start-Up
Furnace Data
Gas heat startup can be completed only if the outdoor air
temperature is below 90°F.
Gas Pressure Settings
Electric Heat Start-Up
Heater Data
Serial Number Model Number
Furnace 1
Furnace 2
Furnace 3
Measured Pressure Natural Gas Settings Propane Settings
Incoming to Unit 7 – 14 11 – 14 in.H
2
O.
Between On/Off and Mod. Valve 5 10.5 in.H
2
O.
Stage 1 Manifold (Low Fire) 0.4 1 – 2
(a)
in.H
2
O.
Stage 1 Manifold (High Fire) 3.5 8 in.H
2
O.
Stage 2 Manifold 3.5 8 in.H
2
O.
Stage 3 Manifold 3.5 8 in.H
2
O.
(a) Because propane quality varies greatly from site to site, the desirable minimum fire setting can vary. Typically, the setting is between 1 to 2 in. WC range. Start at 2 in. WC
at low fire and adjust the flame down based on appearance. Confirm that the flame does not go out by modulating the signal up and down.
Primary Heater Pre-Heater
Item Number
Rated kW
Rated Amps
Running Amps
L1
L2
L3