Table 7: modulating heat, Table 8: electric heating capacities, Modulating heat – York Y33 User Manual
Page 13: Electric heating capacities
246653-YTG-E-0108
Johnson Controls Unitary Products
13
TABLE 7: MODULATING HEAT
S
TAGES
OF
G
AS
C
ONTROL
(%
OF
F
ULL
H
EAT
O
UTPUT
)
G
AS
H
EAT
O
PTION
A
VAILABLE
ON
M
ODELS
S
TEP
I
NPUT
O
UTPUT
%
OF
TOTAL
OUTPUT
D3
(Turn down ration
3.8 to 1)
Y32, Y33, Y34
1
69,333
55,466
26%
2
106,666
85,333
40%
3
165,332
132,266
62%
4
202,665
162,132
76%
5
229,332
183,466
86%
6
266,666
213,333
100%
D5
(Turn down ration
7.7 to 1)
Y32, Y33, Y34
1
69,333
55,466
13%
2
106,666
85,333
20%
3
165,332
132,266
31%
4
202,665
162,132
38%
5
229,332
183,466
43%
6
266,666
213,333
50%
7
325,331
260,265
61%
8
362,664
290,132
68%
9
389,331
311,465
73%
10
426,664
341,331
80%
11
495,997
396,798
93%
12
533,330
426,664
100%
D8
(Turn down ration
11.5 to 1)
Y34 Only
1
69,333
55,466
9%
2
106,666
85,333
13%
3
165,332
132,266
21%
4
202,665
162,132
25%
5
229,332
183,466
29%
6
266,666
213,333
33%
7
325,331
260,265
41%
8
362,664
290,132
45%
9
389,331
311,465
49%
10
426,664
341,331
53%
11
495,997
396,798
62%
12
533,330
426,664
67%
13
586,663
469,330
73%
14
655,996
524,797
82%
15
693,329
554,663
87%
16
762,662
610,130
95%
17
799,995
639,996
100%
TABLE 8: ELECTRIC HEATING CAPACITIES
E
LECTRIC
H
EAT
O
PTION
A
VAILABLE
ON
M
ODELS
R
ATED
V
OLTAGE
N
OMINAL
KW
N
OMINAL
MBH
1
1.
Supply air fan motor heat not included.
MBH
AND
KW
PER
S
TAGE
2
2.
Heating capacity is only staged on CV models. VAV models use only one stage at full capacity.
S
TAGE
1
S
TAGE
2
KW
MBH
KW
MBH
E4
Y32, Y33, Y34
240
3
/480
4
/575
3.
For 208 volts, multiply kW and MBH values by .751. For 230 volts, multiply kW and MBH values by .918
4.
For 460 volts, multiply kW and MBH values by .918.
40
137
40
137
0
0
E8
Y32, Y33, Y34
240
2
/480
3
/575
80
273
40
137
40
136
E1
Y32, Y33, Y34 (460 & 575 volt only)
480
3
/575
108
369
72
246
36
123