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Table 64.
Startup checklist for S*HJ, 90–162 units (continued)
Complete
Where applicable: HW/Steam Heat
31
Modulating valve and actuator (HW and Steam) installed/wired
32
Steam heat swing check vacuum breakers installed per IOM direction
33
Steam heat condensate trap provided
34
O/A pressure sensor installed and piped
35
High side to low side piping to be completed prior to Trane technician arriving for startup
36
Space sensor and pneumatic tubing installed properly
37
Compressor discharge service valves and oil valves open/back seated (excludes Schrader valves)
38
Compressor oil levels (½ -¾ high in glass) proper
39
Verify power wires are connected in the high voltage power box
40
Verify field installed control wiring landed on correct terminals
41
All fan belts tensioned and bearings greased
42
Heat wheel rotates freely by hand
43
Reenergize power. Phase sequence (A-B-C) proper for compressor rotation
44
Incoming voltage balanced
45
All panels/doors secured prior to startup
Start unit
46
Service test guide used to operate unit components
47
Fan amperages within nameplate specs
48
Verify system airflow
49
Dampers open and close properly
50
Adjust outside air damper travel
51
On evaporative condenser models: Verify the sump fills to within 1.5” below the overflow, which is within the slot
on the max float bracket (see Figure 135, p. 184)
52
Compressor operation normal and within amperage rating
53
Superheat (14-18°F) and subcooling (10-18°F) normal for air-cooled units
54
Electric, hot water and steam heating operation checked
55
Gas heating startup sequence of operation per IOM has been followed
56
Gas heat operation has been verified with combustion analyzer
57
Incoming gas pressure does not drop below 7" water column when burner is on high fire
58
Operating log completed
Critical Control Parameters and Dry Bulb Changeover Map
Table 65.
Critical control parameters
Description
Suggested
Parameter
Economizer Settings
Region
1
Region
2
Region
3
Region
4
Region
5
Region
6
Region
7
Supply Air Temperature Control Setpoint
55°F
Supply Air Temperature Deadband
8°F
Supply Air Pressure Setpoint
1.8" w.c.
Supply Air Pressure Deadband
0.1" w.c.
Building Static Pressure Setpoint
0.03" w.c.
Building Static Pressure Deadband
0.04" w.c.
Standby Freeze Avoidance
20%
Exhaust Enable Setpoint
10%
Economizer Minimum Position Setpoint
10%
Fixed Dry Bulb Economizer C/O Type a
(Moist)*
TOA >
65°F
TOA >
65°F
TOA >
65°F
TOA >
65°F
TOA >
70°F
TOA >
70°F
TOA >
70°F
Fixed Dry Bulb Economizer C/O Type b (Dry)
*
TOA > 75°F
Fixed Dry Bulb Economizer C/O Type c
(Marine)*
TOA >
75°F
TOA >
75°F
TOA >
75°F
Fixed Reference (Enthalpy Changeover)
HOA > 28 Btu
Содержание IntelliPak 2 Series
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