Instructions for Field Service Upgrade
on AltairDLX / DRT 4200 (units with
lights only) Direct-Vent Gas Fireplaces
Applicable Models Listed Below*
P/N 900915-01 Rev. A 11/2018
For more information, visit IHP.US.com
INSTALLATION INSTRUCTIONS
1. Turn off the unit, let it cool at room temperature, remove the barrier
and remove glass door.
2. From inside unit, remove the four (4) inner screws at location shown
in Figure 1, if present (screws may not be installed).
3. Remove three (3) front fastening screws (see Figure 2).
4. Lift the rear of the baffle to clear the screws from which it hangs, and
pull forward (see Figure 3).
KIT CONTENTS
1 ea. Base, Flue Restrictor
1 ea. Flap, Restrictor
1 ea. Plate, Restrictor Extension
2 ea. Assembly, Door Latch
2 ea. Screw, HWH 10-16X1/2 Typ AB Blk
4 ea. Screw, 10-16x.38 HWH "B" Blk
1 ea. Pilot Hood
1 ea. Rear Baffle Block-off Plate (40" models only)
1 ea. Baffle 40 DVA, w/Lights
1 ea. Baffle 45 DVA, w/Lights
1 ea. Installation Instructions
TOOLS REQUIRED
5/16" Socket Screw
Pliers
4mm Allen Wrench
Small Flat Screwdriver
FIELD SERVICE UPGRADES SHALL ONLY BE COMPLETED BY A
QUALIFIED SERVICE TECHNICIAN
CAUTION
SHARP EDGES - WATCH YOUR
FINGERS
Wear gloves to guard against any
sharp metal edges.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Field Service Upgrade Kit
Cat. No. F3772 40" Models
Cat. No. F3773 45" Models
* Affected Fireplace Models
Astria
®
Models Superior
®
Models
AltairDLX40DEN-B DRT4240DEN-B
AltairDLX40DEP-B DRT4240DEP-B
AltairDLX45TEN-B DRT4245TEN-B
AltairDLX45TEP-B DRT4245TEP-B
Remove Four (4) Screws
Remove Three (3) Screws
Figure 1
Figure 2
Figure 3
Lift Rear of Baffle Off Screw and
Pull Forward to Remove.
Screw
From Left and
Right Bulb Cover
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