Honeywell t841a Installation Instructions Manual page 3

6.
L o o s e ly s e c u r e th e th e rm o s ta t to th e w a ll o r o u tle t
b o x w ith s c re w s th r o u g h th e tw o m o u n tin g h o le s in
th e m id d le o f th e d e v ic e . T h e s h e e tm e ta l s c re w s
in c lu d e d w ith th e th e rm o s ta t a re d e s ig n e d fo r u s e in
a p la s te r w a ll a n d a n c h o r s a re n o t n e e d e d .
7.
L e v e l th e th e rm o s ta t e x a c tly u s in g a s p irit le v e l o r
p lu m b lin e . T ig h te n th e tw o m o u n tin g s c re w s a t th e
m id d le o f th e d e v ic e .
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
DO NOT JUMPER E TO W2 TERMINALS.
X TERMINAL MUST BE CONNECTED FOR PROPER OPERATION.
Fig. 2. Internal schematic and typical w iring diagram for T841A with CHECK, EM. HT., and AUX. HT. LEDs.
Provides both heat and cool changeover relay control. Common (X) wire must be connected for proper operation.
T841A HEATING-COOLING THERMOSTATS
8.
In s ta ll tw o s c re w s in th e to p m o u n tin g h o le s a n d
tig h te n .
IMPORTANT
An incorrectly leveled subbase will cause the
temperature control to deviate from setpoint. It is
not a calibration problem.
9.
R e p la c e th e th e rm o s ta t c o v e r.
CHANGEOVER
RELAY (COOL)
3
ODT 1
69-1218
L1
(HOT)
L2