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Unitary Products Group 25
FIGURE 13 - FIELD WIRING FOR UNITS WITH ELECTRIC HEAT
R
Y 1
Y 2
W 1
W 2
G
1
1
2
R
Y
O
6 6
6 0
5 3
G
B
2 4 - V O L T C O N T R O L W I R I N G
T E R M IN A L B L O C K 4 T B
O N B L O W E R U N IT
J U M P E R
A n o u t d o o r t h e r m o s t a t c a n
b e w ir e d b e t w e e n
t e r m in a l s
5 3 a n d 6 0 t o p r o v id e a d d i-
t io n a l s t a g in g o n 3 6 a n d
7 2 K W h e a t e r s .
T E R M I N A L S O N
T H E R M O S T A T 6 T H 0 4
7 0 1 5 2 4
W I T H S U B - B A S E 2 T B 0 4 7 0 0 3 2 4
3
T O
C O N D .
U N I T
N O T E S :
O n l y r e q u ir e d f o r 2 - s t a g e c o o lin g . * *
N o t r e q u ir e d o n 1 0 K W h e a t e r s ( o n ly o n e -
s ta g e h e a t in g ) .
T h is t h e r m o s t a t a n d s u b - b a s e m u s t b e u s e d w h e n e v e r
a b l o w e r u n it is e q u ip p e d w i
t h a n e le c t r ic h e a t a c c e s s o r y .
1
2
3
U N I T S W I T H E L E C T R I C H E A T A C C E S S O R Y
T h e f ie ld w ir in g c o n n e c t e d t o t h e s e d u m m y
t e r m in a l s o n 4 T B c a n b e r o u t e d d ir e c
t ly f r o m
t h e c o n d e n s in g u n it t o t h e t e r m o s t a t i f d e s ir e d .
N O T E : T e r m in a l R o n 4 T B is n o t a
d u m m y t e r m in a l o n
K E U 0 6 0 u n it s b e c a u s e t h e s e u n it s i n c lu d e a t r a n s f o r m -
e r t h a t p o w e r s t h e c o n t r o l c i r
c u it . O n la r g e r s y s t e m s ,
t h is t r a n s f o r m e r is s u p p li e d w it h t h e c o n d e n s in g u n it .
* W ir e R o n 4 T B t e r m
in a l b lo c k is n o t r e q u i r e d o n 5 t o n u n it .
* * O n ly a p p lie s t o H C A 1 8 0 / K E U 1 8 0 s y s t e m s w h e n t h e H C A 1 8 0 i s
e q u i p p e d w it h t h e c a p a c i t y r e d u c t io n a c c e s s o r y . T w o 1 1 5 - v o lt
w ir e s w ill a ls o b e r e q u ir e d f o
r t h e li q u i d lin e s o le n o id v a lv e
t h a t w ill b e f u r n i s h e d w it h th e c a p a c it y r e d u c t i o n a c c e s s o r y .
R e f e r t o F o r m 5 5 0 . 1 3 N 1 .5 f o r a d d it io n a l i n f o r m a t io n o n
t h is a c c e s s o r
y
.