The Versaguard™ Universal Thermostat Guards cover wall
thermostats and protect against tampering, damage and
unauthorized adjustment of thermostat settings.
❥ Opaque plastic guards match commercial interior
decorating schemes.
❥ Can be mounted on the wall or an exposed junction box.
❥ Smoke-colored transparent or off-white opaque
polycarbonate ring base without wallplate, or opaque
plastic wallplate and plastic ring base. All models
include a guard cover, tumbler lock, two keys and a
Honeywell logo insert.
❥ TG509F,G models permit thermostat calibration
without ring base removal.
❥ Provision for Honeywell logo (included with all models)
or OEM logo on guard cover.
❥ Ideal for office areas, lobbies, supermarkets,
restaurants, clinics, hospitals, convenience stores,
and similar applications.
❥ Tamper-resistant lock; key can be removed only when
The specifications listed in this publication do not
include normal manufacturing tolerances. Therefore,
this unit may not exactly match the listed specifications.
Also, this product is tested and calibrated under closely
controlled conditions, and some minor differences in
performance can be expected if those conditions are
changed. For exact engineering specifications, contact
your Honeywell representative.
TRADELINE® Models:
TRADELINE® models are selected and packaged for ease of
stocking, ease of handling, and maximum replacement value.
TRADELINE® Models Available:
TG509F Versaguard™ Universal Thermostat Guard:
transparent polycarbonate cover (smoke tint) ring base
and allen wrench.
TG509G Versaguard™ Universal Thermostat Guard:
opaque polycarbonate cover (off-white) ring base and
allen wrench.
TG510A, TG511A, TG512A Versaguard™ Universal
Thermostat Guards: clear plastic cover, opaque plastic
wallplate and clear plastic ring mounting base.
TG510B, TG511B, TG512B Versaguard™ Universal
Thermostat Guards: opaque plastic cover, opaque plastic
wallplate and opaque plastic ring mounting base.
Standard Models:
TG510D, TG511D, TG512D Versaguard™ Universal
Thermostat Guards: painted steel cover (off-white), opaque
plastic wallplate and opaque plastic ring mounting base.
Additional Features:
TRADELINE® and Standard Versaguard™ Universal
Thermostat Guards include Honeywell logo insert (fieldinstalled), mounting template, screws, anchors and tumbler
lock with two keys.
See Tables 1 and 2 for thermostat guard applications.
Accessory:
191990A Replacement Keys (2); can also be used with
TG500 and TG502 Thermostat Guards.
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or your distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number, or specify:
1. Order number.
2. Transparent (smoke tint) or opaque (off-white) polycarbonate (TG509 models only), clear or opaque plastic, or painted
steel cover (off-white).
3. Accessory.
If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:
1. Your local Honeywell Home and Building Control Sales Office (check white pages of phone directory).
2. Home and Building Control Customer Relations
Honeywell, 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitee, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International Sales and
Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico,
Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
1. Read these instructions carefully. Failure to follow them
could damage the product.
2. Check the dimensions given in the instructions and on
the product to make sure the product is suitable for your
application.
The Versaguard™ Universal Thermostat Guards can be used
in new or existing thermostat applications. In existing
thermostat applications, the guard can be installed without
removing the thermostat from the wall. In these applications,
the thermostat guard is used without the solid wallplate (only
ring base and cover are used). In new thermostat
applications, the guard can be used with or without the solid
wallplate. The wallplate is typically used to cover mounting
marks from the old thermostat.
Refer to the following sections for specific mounting
procedures for thermostat guard applications.
Mount Thermostat Guard Without Wallplate
(Fig. 5 and 6)
쐃 Place the ring base over the thermostat (and wallplate,
subbase or adaptor plate) on the wall.
쐇 Align the ring base with the thermostat and level
approximately.
쐋 Mark the four mounting holes.
FRONT VIEW
SIDE VIEW
F
5-7/8
5-7/8
5-7/8
149
149
149
9-3/4
9-3/4
9-5/8
E
E
248
7-1/4
184
3-3/8
248
244
7-1/4
7-1/8
184
180
3-3/8
3-1/4
86
86
83
G
M644C
쐄 Mount the guard cover by placing the hinged edge of
the guard cover on the ring base and swinging it down
(horizontal mounting) or to the side (vertical mounting)
until the guard cover is in place against the ring base.
See Fig. 7.
쐂 Lock the thermostat guard by turning the key (provided)
counterclockwise. See Fig. 8. The key can be removed
only in the locked position.
쐆 Remove the paper backing and clear protective cover
from the included monogram and place the monogram
in the recessed area on the guard cover. See Fig. 9.
NOTE: The TG509F,G Thermostat Versaguards™ are
shipped with an allen wrench secured in the
top notch of the ring base. When thermostat
calibration is needed, remove the Versaguard
cover and use the wrench to remove the top
two allen screws in the thermostat cover. This
allows servicing of the thermostat while the
ring base is in place.
MOUNTING RING BASE
MOUNTING
HOLES (4)
0
9
0
8
0
7
0
0
6
6
0
9
0
8
0
7
0
6
WALL
THERMOSTAT
COVER
FRONT OF DEVICE
NOTE: Do not use the four brass screws for mounting
the TG509. The brass screws are intended for
models with wallplates only.
쐏 Mount the ring base on the wall using the four no. 6
sheet metal screws and four anchors provided as
shown in Fig. 5 for the TG509 and Fig. 6 for the FG510,
TG511 and TG512.
68-0104—4
RING BASE
MOUNTING SCREWS (4)
RING
BASE
KEY
RECESSED AREA
FOR MONOGRAM
Fig. 5. Mount TG509 ring base only in existing thermostat
Disconnect power supply to prevent electrical shock or
equipment damage.
Wall Mounting Front-wired Subbase (Fig. 10)
쐃 Place the thermostat subbase (or wallplate) on the
wallplate template and mark the mounting holes.
쐇 Locate the mounting holes on the guard wallplate using
the template as a guide.
쐋 Drill the required 5/32 in. mounting holes in the guard
wallplate.
NOTE: If the mounting hole pattern on the guard
wallplate does not match the pattern on the
thermostat subbase or wallplate, drill
additional mounting holes in the guard
wallplate.
WALL
쐏 Mount the thermostat subbase (or wallplate) and the
guard wallplate to the wall using the 1-1/4 in. sheet
metal screws provided with the thermostat. The guard
wallplate must be placed between the thermostat
subbase (or wallplate) and the wall. See Fig. 10.
쐄 Wire the thermostat subbase (or wallplate). Refer to the
installation instructions provided with the thermostat.
쐂 Mount the thermostat on the subbase (or wallplate) and
place the thermostat cover on the thermostat.
쐆 Mount the guard ring base over the thermostat,
subbase (wallplate) and guard wallplate.
쐊 Attach the ring base using four no. 6 sheet metal
screws or four anchors and screws (provided).
쐎 Mount the guard cover by placing the hinged edge of
the guard cover on the ring base and swinging it down
(horizontal mounting) or to the side (vertical mounting)
until the thermostat guard is in place against the ring
base. See Fig. 7.
쐅 Lock the thermostat guard by turning the key (provided)
counterclockwise. See Fig. 8. The key can be removed
only in the locked position.
쐈 Remove the paper backing and clear protective cover
from the included monogram and place the monogram
in the recessed area on the guard cover. See Fig. 9.
GUARD WALLPLATE
A
E
H
0
5
T
SUBBASE
0
8
0
7
0
6
0
5
RING BASE
L
O
O
C
0
8
0
7
0
6
0
5
0
8
0
7
0
6
THERMOSTAT
MOUNTING
HOLES (4)
68-0104—4
MOUNTING SCREWS (4)
Fig. 10. Mount guard wallplate and ring base on thermostat with front-wired subbase or wallplate.
쐃 Place the thermostat on the wallplate template and
mark the mounting holes.
쐇 Locate the mounting holes on the guard wallplate using
the template as a guide.
쐋 Drill the required 5/32 in. mounting holes in the guard
wallplate.
NOTE: If the mounting hole pattern on the guard
wallplate does not match the pattern on the
thermostat, drill additional mounting holes in
the guard wallplate.
쐏 Mount the smooth side of the guard wallplate facing the
thermostat and run the system wires through the wiring
hole in the guard wallplate. The guard wallplate must be
placed between the thermostat and the wall. See Fig. 11.
쐄 Back-wire the thermostat. Refer to the instructions
provided with the thermostat.
WALL
GUARD WALLPLATE
쐂 Mount the thermostat and the guard wallplate to the
wall using the 1-1/4 in. sheet metal screws provided
with the thermostat. Make sure the guard wallplate is
placed between the thermostat and the wall.
쐆 Place the thermostat cover on the thermostat.
쐊 Mount the guard ring base over the thermostat and the
guard wallplate.
쐎 Attach the ring base using four 1-1/4 in. sheet metal
screws or four anchors and screws (provided).
쐅 Mount the guard cover by placing the hinged edge of
the guard cover on the ring base and swinging it down
(horizontal mounting) or to the side (vertical mounting)
until the guard cover snaps into place against the ring
base. See Fig. 7.
쐈 Lock the thermostat guard by turning the key (provided)
counterclockwise. See Fig. 8. The key can be removed
only in the locked position.
쐉 Remove the paper backing and clear protective cover
from the included monogram and place the monogram
in the recessed area on the guard cover. See Fig. 9.
THERMOSTAT
BASE
80
70
60
50
RING BASE
MOUNTING SCREWS (4)
CONNECT WIRES
TO TERMINALS ON
BACK OF THERMOSTAT BASE
THERMOSTAT COVER
M
R
A
W
L
O
O
C
MOUNTING
HOLES (4)
M658A
Fig. 11. Mount guard wallplate and ring base on back-wired thermostat.
쐃 Place the thermostat subbase (or wallplate) on the
wallplate template and mark the mounting holes.
쐇 Locate the mounting holes on the guard wallplate using
the template as a guide.
쐋 Drill the required 5/32 in. mounting holes in the guard
wallplate.
쐏 Secure the guard wallplate to the ring base using the
screws provided.
쐄 Place the guard wallplate (with smooth side facing the
ring base) on the back of the ring base.
쐂 Insert the securing screws through the holes on the
front of the ring base and into the posts on the
wallplate. See Fig. 12.
쐆 Tighten the screws securely.
NOTES: When using a front-wired subbase
(wallplate), run the system wires from the
junction box through the wiring hole in the
guard wallplate and subbase (wallplate)
cable opening.
When using a back-wired subbase
(wallplate), run the system wires from the
junction box through the wiring hole in the
guard wallplate only.
쐊 Wire the back-wired subbase. Refer to the instructions
provided with the thermostat.
쐎 Mount the thermostat subbase (wallplate) and the ring
base with the guard wallplate to the junction box using
the 1-1/4 in. sheet metal screws provided.
쐅 Wire the front-wired subbase (wallplate). Refer to the
instructions provided with the thermostat.
쐈 Mount the thermostat on the subbase (wallplate).
쐉 Place the thermostat cover on the thermostat.
씈 Mount the guard cover by placing the hinged edge of
the guard cover on the ring base and swinging it down
(horizontal mounting) or to the side (vertical mounting)
until the guard cover is in place against the ring base.
See Fig. 7.
씉 Lock the thermostat guard by turning the key (provided)
counterclockwise. See Fig. 8. The key can only be
removed in the locked position.
씊 Remove the paper backing and clear protective cover
from the included monogram and place the monogram
in the recessed area on the guard cover. See Fig. 9.
HORIZONTAL
OUTLET BOX
GUARD
WALLPLATE
WALLPLATE
POSTS
RING BASE
SECURING SCREWS (4)
THERMOSTAT
HEAT
50 60 70 80
SUBBASE
50 60 70 80
50 60 70 80
MOUNTING
SCREWS (2)
COOL
M1638A
Fig. 12. Mount guard wallplate with ring base and thermostat on junction box (front-wired thermostat subbase shown).