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Millennium Enterprises Z34 User Manual

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882108-YIM-B-1012
10
Johnson Controls Unitary Products
FIGURE 2 -
TYPICAL RIGGING
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 ratio
3.8 to 1)
Z42, Z33, Z34
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 ratio
7.7 to 1)
Z42, Z33, Z34
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 ratio
11.5 to 1)
Z34 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%
If a unit is to be installed on a roof curb other than a
York roof curb, gasketing must be applied to all sur-
faces that come in contact with the unit underside.
If a unit is to be installed on an angle iron frame it is
recommended that it be sized to allow the bottom
rail to overhang to facilitate installation of conden-
sate drains (see Fig. 4).
RIGGING:
(1)  RIG WITH SIX CABLES AND THREE SPREADER
      BARS AT LEAST 98” ACROSS THE WIDTH OF THE UNIT.
(2)  CENTER OF GRAVITY INCLUDES ECONOMIZER
      AND POWER EXHAUST.
ALL PANELS MUST BE SECURED IN
PLACE WHEN THE UNIT IS LIFTED.
CABLES
SPREADER BARS
(3 PLACES)
27”
32”