Milnor 6458, Installation Manual

Page: 65 / 93

Pellerin Milnor Corporation
Gas, Steam, and Air Intake - Older Dryer Models (cont'd.)
Model number prefix 5040_
50040_
58040_ 58058_ 58080_
72072_
with tower
72072_ no
tower
@ 13.5"
(343)
@ 13.5"
(343)
@ 13.5"
(343)
@ 18"
(457)
@ 18"
(457)
Steam inlet (steam models)
Maximum lb/hr (kg/hr) 600 (272) 600 (272) 950 (431) 1300 (590) n.a. n.a.
Average lb/hr (kg/hr) 127 (280) 173 (382) 561 (254) 765 (347) n.a. n.a.
Maximum boiler horse-
power (kw)
17.4 (7.9) 17.4 (7.9) 27.5 (12.5) 37.7 (17.1) n.a. n.a.
Average boiler horse-
power (kw)
8.1 (3.7) 11.1 (5.0) 16.3 (7.4) 22.2 (10.1) n.a. n.a.
Thermal oil inlet (thermal oil models) - Consult Milnor ® factory
Main air intake
Maximum scfm (cu m/
min)
3,600 (102) 3,600 (102) 5,000 (142) 6,800 (193)
10,000
(283)
14,000
(396)
Maximum allowable
back pressure
0.5" (water column)
Combustion (non-ducted, ambient) air intake (natural gas and propane models)
Maximum scfm (cu m/
min) to blower
250 (7) 250 (7) 400 (11) 500 (14) 715 (20) 715 (20)
Maximum scfm (cu m/
min) to fire box
400 (11) n.a. n.a. n.a. 900 (25) 900 (25)
1.3. Other Mechanical Requirements
BNDUUI01.C08 0000243305 A.7 A.4 1/2/20 1:40 PM Released
Main air intake and exhaust ducting Per document BNDGUI01 “Air and Ductwork Require-
ments for Milnor ® Pass-through Dryers.”
Sprinkler water inlet
Minimum 35 PSI (2.4 ATU). Must reliably provide 60 USg (227 liters)
per minute for fire safety.
Compressed air inlet Clean and dry 85 PSI (5.8 ATU) to 110 PSI (7.5 ATU)
Compressed air inlet for optional internal lint filter 85 PSI (5.8 ATU) to 110 PSI (7.5 ATU).
Air usage estimate: 110 scf (3.1 cubic meter) in 15 seconds when activated.
Customer-supplied connector between the gas inlet and the gas supply piping a listed con-
nector in compliance with ANSI Z21.24 CSA 6.10 “Standard for Connectors for Gas
Appliances”
Customer-supplied tap (gas/propane models)
1/2" NPT plugged tap, accessible for test gauge
connection. Install immediately upstream of the gas supply connections to the dryer.
Gas line vent (gas/propane models) 1/4" stainless steel. Must be vented from the regulator
vent to the exterior of the building.
Steam condensate outlet (steam models) Per plumbing code. Return condensate to boiler
through a steam trap of the correct size. Two steam traps are available from Milnor ® : One for
85 - 180 PSI (6 - 12 ATU) and one for 160 - 225 PSI (11 - 15 ATU).
Vacuum breaker (steam models)
Vent the tube to the sewer.
Utility Requirements For Gas, Steam and Thermal Oil Dryers
61