Installation guide

035-20530-001Rev.B(0804)
8. Replacecontrolaccesspanel.
9. Turnonallelectricalpowertotheappliance.
10.Setthermostatto thedesiredsetting.Burnerwill
light,whichmaytake30-60seconds.
11.Afterthree(3)trials,iftheappliancewillnotoperate,
followthe instructionsTO TURNOFFGASTO
APPLIANCEandrefertotroubleshootingguideinthe
InstallationInstructionsorOwner'sManual.
D. Product Specifications
Model No. DGAT070 DGAT075
Input 70,000 Btu/hr 75,000 Btu/hr
Output 57,000 Btu/hr 61,000 Btu/hr
Air Temperature 45_75OF
Rise Range
Maximum Outlet
165°F
Tem peratu re
Maximum External
0.30" wc
Static Pressure
Part 1: Basic Information
Record the following on the DGAT Program Claim Form.
Record information clearly and legibly.
Most of this information should be available before travelling
to the job site.
A. Rating Plate Data
1. Model Number
g.
2. Serial Number
Customer Data
1. Customer name, street address, city, state and zip
code.
2. Customer telephone number.
Part 2: Inspection
A.
Inspect Roof Jack
1. Verify the proper Roof Jack is being used. The DGAT
is approved for use with the 4000 Series roof jack
only. See Figure 1.
B. Remove Assembly Burner
4000 SERIES
7900 SERIES
FIGURE 1: Roof Jack
NOTE:
2.
3.
The 7900 Series Roof Jack can be converted to a
4000 Series Roof Jack by replacing crown. Use pin
4000-6941tC.
inspect Roof Jack. Replace if damaged, tilted,
crooked, or shows deterioration.
Remove bird screens or other obstructions to com-
bustion air inlet.
FIGURE 2: Turn power switch to off position.
1. Follow instructions TO TURN OFF GAS TO APPLI-
ANCE.
2. Disconnect wires to gas valve, igniter, and flame sen-
sor.
3. Turn off gas supply to furnace by closing manual
shut-off valve. Disconnect gas supply piping.
4. Remove gas valve. See Figure 3.
2 Unitary Products Group