Warning – Slant/Fin Sentry Series User Manual
Page 3
III. After Installation
1. Operate system through two complete cycles to check for
opening and closing in proper sequence, and proper burner
operation.
Damper must be in open position when boiler
main burners are operating.
2. Perform installation checks as required by ANSI specification
Z21.66. See manufacturer’s vent damper instructions.
3. Replace the front cover of the boiler. (Galaxy models only.)
4. Check the troubleshooting section if problems arise with the
installation.
For more information, see Slant/Fin boiler installation manual GG-
40 for Galaxy, S-40 for Sentry, SE-40 for Sentinel, and the vent
damper manufacturer's booklet shipped with the vent damper.
VENT DAMPER SUITABILITY
Check the rating plate attached to the boiler for proper vent damper
part number to use on the boiler.
WARNING - IMPORTANT
Damper circuit is designed to be controlled by low
voltage controls. DO NOT use line voltage operating con-
trols to interrupt supply voltage to the L8148E and L8124E
aquastats or system transformer on steam system.
CAUTION
Label all wires prior to disconnection when servicing control.
Wiring errors can cause improper and dangerous operation.
“Verify proper operation after servicing”
VENT DAMPER MODEL NUMBER
In Table 1, the proper Slant/Fin Corp. vent damper model numbers are shown adjacent to the specific Slant/Fin Corp. boilers
with which these vent dampers may be used.
WARNING
THIS DEVICE CANNOT BE USED WITH BOILERS WITH 300,000 BTU/HR. INPUT OR GREATER EQUIPPED WITH CONTINU-
OUS PILOT (see note). OTHER VENT DAMPERS OR DEVICES WITH SIMILAR PURPOSE ARE NOT PERMITTED.
Vent Size
Use Slant/Fin Vent
For Slant/Fin Boiler Model No.†
Inches
Damper Part No.
S-34, S-60, SE-70
4
41-2704#
GG-75H, GXH-105, GXHA-100, GXHA-120, S-90, SE-105, SE-140
5
41-2705#
GG-100H, GG-125H, GG-150H, GG-175H, GXH-125, GXHA-160, S-120, SX-150, SE-175
6
41-2706#
GG-200H, GG-225H, GXH-150, GXH-170, GXH-190, GXH-210, GXH-230,
GXHA-200, GXH-250, GXH-275, S-150, SX-180, SX-210, SE-210, SE-245
7
41-2707#
GX-225, GX-250,GG-250H, GG-275H, GG-300, GG-325, GXH-300
8
41-2708#
GG-350, GG-350H, GG-375, GXH-300H
9
41-2709
GG-375H, GG-399H
10
41-2710#
Table 1.
NOTE: BOILERS WITH 300,000 BTU/HR. EQUIPPED WITH HONEYWELL VR 8300A GAS VALVE MAY USE A VENT DAMPER.
† May have suffix “E”, “D”, “P”, “PZ”, etc.
# May be any 3 digits.
Table 2.
DIMENSIONS
Figure 1.
Figure 2.
* May be plugged with plug provided, ONLY if boiler is equipped with an inter-
mittent ignition pilot. Note on Honeywell vent dampers there is only the 7/8
dia. hole and no knockout. For more information on specific vent dampers
see manufacturer’s manual included.
Vent
Size
4"
5"
6"
7"
8"
9"
10"
A
9
5
⁄
8
"
10
5
⁄
8
"
11
5
⁄
8
"
12
5
⁄
8
"
13
5
⁄
8
"
14
5
⁄
8
"
15
5
⁄
8
"
Figure 3.
Vertical Installation
Figure 4.
Horizontal or Sloping Installation