In the meantime, here we go. Hand typing is not dead yet
Owners Operating Instructions for Direct Vent furnaces
, minus the standard safety disclaimers and that sort of thing:
1) Heaters with thermostatic controls, adjust thermostat or temperature control dial to "off" position.
2) Be sure all shut-off valves in supply line are open.
3) Turn gas control dial to "off," open lighter door and wait 10 minutes.
4) Rotate dial to "pilot," depress dial while lighting
pilot burner. This is easily accomplished by using a wooden kitchen match and attempting to get the flame to the pilot burner before the phosphorous is completely burned from the tip of the match.
5) Keep dial depressed for 1 minute after pilot starts burning, and rotate dial to "on" position. (On heaters equipped with Millivolt Control, allow pilot to burn for 2 minutes before rotating dial on "on" position.)
6) Close lighter door after lighting
7) Heaters with thermostatic controls, adjust thermostat or temperature control dial to desired temperature.
8) If pilot goes out, open lighter door and wait 10 minutes before repeating lighting
procedure. If pilot needs adjusting, see Pilot Adjustment (for modulating and millivolt controls).
9) For complete shut down, push in on dial and rotate to "off" position.
10) If more heat is desired of heaters equipped with a thermostatic controls, turn thermostat or temperature control dial to a higher setting [duh!]
Remove pilot adjusting cap and adjust screw so flame completely envelopes the end (approximately 3/8") of thermocouple.
[Then they show a diagram of the two controls. The Millivolt Control is like a square box proportioned like a duplex outlet box in a house, with a small dial on the top on one end (side that would have outlets on receptacle) and the rest flat area.
The Modulating Control is more square, with a round outline on one side face and two knobs on top. It has 1-5 numbers on the dial for settings.]
An air adjustment screw is provided on some heaters. The 65211, 65311, 65411, 65510, 65512, 65515, and 65517 series heaters do not have an adjusting screw.
Too much air = Firing at orifice - Flame lifting from burner
Too little air = Yellow flame - Soot
There are diagrams showing where the screw is, but it's kind of hard to describe them. I will try:
On 65210 and 21R series, it looks like it is near a bottom pan corner and there is a little lock nut.
On 65212 series, there is a metal box/corner, and on the longer vertical face there is a little screw just to the lower right of the middle. There is something above it that is kind of square/round - maybe the pilot hole flap? It has a lock nut. Around the corner on the shorter vertical face there is a wire coming out.
That is basically the whole operating instructions.
Form number 19-424-7
Duo-Therm, Division of Motor Wheel Corporation
Printed U. S A. 1/75