Dorma EM 508 Series Installation Instructions

Installation Instructions for Surface Wall Mount Electromagnetic Door
Description
The EM 508 Series are surface wall mount door holders for use
with single doors. All are UL and cUL Listed and FM approved.
Installation
Install and wire in accordance with applicable codes, standards,
such as NFPA publications 70 (National Electrical Code), 72 (Na-
tional Fire Alarm Code), and 80 (Standard for Fire Doors and Fire
Windows), and/or other regulations applicable to the country
and locality of installation and in accordance with authorities
having jurisdiction.
Y
Door
Door jamb
Figure 1. Locating the Door Holder
1. Using Figure 1 and Table 2, locate the intersection of
Dimension X and Dimension Y. Dimension Z is shown at the
intersection in the gray area.
NOTE: If dimension X or Y is not shown on the chart,
extrapolate Dimension Z. (i.e., if X=7, and Y=30, Z
= (27-5/8 - ((27-5/8 - 27-1/4)/2)) => Z = 27-9/16" )
2. Mount the surface housing (supplied) vertically on the
horizontal center line and 5" from the top of the door with
two 1/4-20 x 1" screws (provided).
NOTE: The outlet box must be able to withstand a maximum
holding force of 50 pounds.
If X and Y intersect in the blank area in Table 2, DO NOT
install the outlet box. The contact plate and electromagnet
cannot be aligned with these dimensions.
28 30
2 26 (660) 28 (711)
4 26 (660) 28 (711)
6 25 5/8 (651)
27 5/8 (702)
8 25 1/4 (641) 27 1/4 (692)
10 24 5/8 (625) 26 3/4 (679)
12 23 3/4 (603)
25 7/8 (657)
14 23 3/4 (603) 25 (635)
16 21 3/4 (552) 24 (610)
18 20 (508)
22 1/2 (572)
20 18 1/4 (463) 21 (533)
22 18 3/4 (476)
24
26 Do not install outlet box if
28 Dimensions X and Y intersect in this blank area.
30 The armature and electromagnet cannot be aligned.
32
DORMA Architectural Hardware * Dorma Drive - Drawer AC, Reamstown, PA 17567
Holders Catalog Series EM 508 24120
center
line
Outlet box
Z
Wall line
X
Table 2. Dimension chart (in inches (mm))
32 34
29 7/8 (759) 32 (813) 34 (864)
29 7/8 (759) 32 (813) 34 (864)
29 5/8 (752) 31 3/4 (806) 33 3/4 (857)
29 1/4 (743) 31 3/8 (797) 33 1/2 (851)
28 3/4 (730) 30 7/8 (784) 33 (838)
28 (711) 30 1/8 (765) 32 1/4 (819)
27 1/4 (692) 29 3/8 (746) 31 1/2 (800)
26 1/4 (667) 28 1/2 (724) 30 3/4 (781)
25 (635) 27 3/8 (695) 29 3/4 (756)
23 1/2 (597) 26 (660) 28 1/2 (724)
21 5/8 (549) 24 3/8 (619) 27 (686)
22 1/2 (572) 25 1/2 (648)
Cat. No.
EM 508 24120
Electromagnet Assembly Mounting
1. Refer to Figure 4. If not using surface metal raceway (not
supplied), secure the acrylic insulating sleeve (provided) to
the hole in the surface housing with the #8-32 x 3/16" screw
provided.
To prevent electrical shock, ensure power is discon-
nected.
2. Pull field wiring through conduit into the surface housing. If
surface metal raceway (not supplied) is being used, the
required size is 1/2" wide x 11/32" high. The raceway will
seat 1/4" into the surface housing. Wiring should be run
through the acrylic insulating sleeve where applicable.
3. Establish earth-ground continuity in accordance with
applicable codes, standards and authorities having
jurisdiction.
4. Refer to Figure 2 and connect as instructed below:
a. 120V AC operation. Connect power field wiring to
terminals marked "120V AC" and "COM."
b. 24V AC/DC operation. Connect power field wiring to
terminals marked "24V AC/DC" and "COM."
5. Mount the connected assembly onto the surface housing
and secure it with (2) #10-32 x 7/8" screws (supplied).
NOTE: The combined projection of the surface housing,
electromagnet assembly, and the armature assembly
is 4 1/16".
Y = Dimension of door width
36 38 40
36 (914) 38 (965)
36 (914) 38 (965)
35 3/4 (908) 37 3/4 (959)
35 1/2 (902) 37 3/8 (949)
35 (889) 37 (940)
34 3/8 (873) 36 3/8 (924)
33 3/4 (857) 35 7/8 (911)
33 (838) 35 1/8 (892)
32 (813) 34 1/4 (870)
30 7/8 (784) 33 1/8 (841)
29 3/8 (746) 31 3/4 (806)
28 1/8 (714) 30 5/8 (778)
26 1/4 (667) 29 (737)
Table 1. Specifications
Volts
24V AC 60 Hz
24V DC
120V AC 60 Hz
WARNING
42 44
40 (1016) 42 (1067) 43 7/8 (1114) 45 5/8 (1159)
40 (1016) 42 (1067) 43 7/8 (1114) 45 5/8 (1159)
39 3/4 (1010) 41 3/4 (1060) 43 5/8 (1108) 45 3/8 (1153)
39 1/2 (1003) 41 1/2 (1054) 43 3/8 (1102) 45 1/4 (1149)
39 1/8 (994) 41 1/8 (1045) 43 (1092)
38 1/2 (978) 40 5/8 (1032) 42 1/2 (1080) 44 3/8 (1127)
38 (965) 40 (1016) 42 (1067)
37 1/4 (946) 39 3/8 (1000) 41 3/8 (1051) 43 3/8 (1102)
36 1/2 (927) 38 5/8 (981) 40 5/8 (1032) 42 1/2 (1080)
35 3/8 (899) 37 5/8 (956) 39 5/8 (1006) 41 5/8 (1057)
34 1/8 (867) 36 1/2 (927) 38 5/8 (981)
33 1/8 (841) 35 5/8 (905) 37 7/8 (962)
31 5/8 (803) 34 1/4 (870) 36 1/2 (927)
29 3/4 (756) 32 1/2 (826) 34 7/8 (886)
27 3/4 (705) 30 5/8 (778) 33 (838)
31 3/8 (797)
P/N 3101128 ISSUE 1 © 2006
A m p s
0.015
0.015
0.015
46 48
44 7/8 (1140)
43 7/8 (1114)
40 3/4 (1035)
40 (1016)
38 5/8 (981)
37 1/8 (943)
35 3/8 (899)
33 7/8 (860)
501-1012DE-1-01