Indirect Fired Gas Heat Start-Up; Furnace Data; Gas Pressure Settings; Electric Heat Start-Up - Trane Horizon OABD Series Installation, Operation And Maintenance Manual

Start-Up Form

Indirect Fired Gas Heat Start-Up

Furnace Data

Gas heat startup can be completed only if the outdoor air
temperature is below 90°F.
Furnace 1
Furnace 2
Furnace 3

Gas Pressure Settings

Incoming to Unit
Between On/Off and Mod. Valve
Stage 1 Manifold (Low Fire)
Stage 1 Manifold (High Fire)
Stage 2 Manifold
Stage 3 Manifold
(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.

Electric Heat Start-Up

Heater Data

Item Number
Rated kW
Rated Amps
L1
Running Amps L2
L3
124
Serial Number
Measured Pressure
Primary Heater
Natural Gas Settings
7 – 14
5
0.4
3.5
3.5
3.5
Model Number
Propane Settings
11 – 14
10.5
(a)
1 – 2
8
8
8
Pre-Heater
OAU-SVX007A-EN
in.H O.
2
in.H O.
2
in.H O.
2
in.H O.
2
in.H O.
2
in.H O.
2