Wiring The Subbase - Honeywell T874R Installation Instructions Manual

NOT INCLUDED W ITH UNIT.
ACCESSORY PARTS AVAILABLE (193121A).
Fig. 1. Installation of subbase on outlet box.
Fig. 2. Installation of subbase on wall.
2 . Run w ires to th e th erm o stat lo catio n .
3. Pu ll w ires th ro u g h th e cover p late (if used) and sub­
base cable o p en in g . See Fig . 3 .
IMPORTANT
Use 18 gauge, color-coded thermostat cable for
proper wiring.
T874R THERMOSTATS AND Q674L SUBBASES
4. Secure th e cover p late (if used) and subbase w ith
th e screw s p ro vid ed . D o n o t fu lly tig h te n th e
subbase screw s.
5. Level th e subbase b y u sin g a sp irit level. Firm ly
tig h te n subbase m o u n tin g screw s. See Fig . 3 . The
subbase m o u n tin g holes p ro vid e fo r m in o r o u t-o f­
level ad justm ents.
IMPORTANT
A n incorrectly leveled subbase causes the
temperature control to deviate from setpoint.

Wiring the Subbase

A ll w irin g m u st com p ly w ith lo cal electrical codes and
ordinances. Fo llo w eq uip m ent m anufacturer w irin g
in stru ctio n s w hen available. To w ire subbase, p roceed as
fo llo w s:
1 . Connect th e system w ires to th e subbase. See F ig .
5-12. A le tte r code fo r id e n tificatio n is lo cated n ear
each term in al. The term in al b arrier p erm its straig h t
o r co n ven tio n al w rap around w irin g co nnectio n. See
Fig . 4 .
2. Firm ly tig h te n each term in al screw .
3. Fit w ires as close as possible to th e subbase. Push
excess w ire back in to th e h o le.
4. Plug th e h o le w ith n o n flam m ab le in su latio n to
p reven t d rafts fro m affectin g th e th erm o stat.
Fig. 3. Subbase components and leveling procedure.
FOR STRAIGHT
IN SE RTIO N -
STRIP 5/16 IN. (8 M M)
<-SU BBASE TERM INAL S CREW
Fig. 4. Wiring connections.
3
THERMOSTAT
THERMOSTAT
(U p TO 12)
FOR W R A PAR O U N D -
STRIP 7/16 IN. (11 MM)
-B A R R IE R -
69-0392—9
M927