Changeover Map - Trane IntelliPak 2 Series Installation, Operation And Maintenance Manual

Commercial rooftop air conditioners
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Table 64. Startup checklist for S*HJ, 90–162 units (continued)
Where applicable: HW/Steam Heat
Modulating valve and actuator (HW and Steam) installed/wired
31
Steam heat swing check vacuum breakers installed per IOM direction
32
Steam heat condensate trap provided
33
O/A pressure sensor installed and piped
34
High side to low side piping to be completed prior to Trane technician arriving for startup
35
Space sensor and pneumatic tubing installed properly
36
Compressor discharge service valves and oil valves open/back seated (excludes Schrader valves)
37
Compressor oil levels (½ -¾ high in glass) proper
38
Verify power wires are connected in the high voltage power box
39
Verify field installed control wiring landed on correct terminals
40
All fan belts tensioned and bearings greased
41
Heat wheel rotates freely by hand
42
Reenergize power. Phase sequence (A-B-C) proper for compressor rotation
43
Incoming voltage balanced
44
All panels/doors secured prior to startup
45
Start unit
Service test guide used to operate unit components
46
Fan amperages within nameplate specs
47
Verify system airflow
48
Dampers open and close properly
49
Adjust outside air damper travel
50
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)
51
Compressor operation normal and within amperage rating
52
Superheat (14-18°F) and subcooling (10-18°F) normal for air-cooled units
53
Electric, hot water and steam heating operation checked
54
Gas heating startup sequence of operation per IOM has been followed
55
Gas heat operation has been verified with combustion analyzer
56
Incoming gas pressure does not drop below 7" water column when burner is on high fire
57
Operating log completed
58
Critical Control Parameters and Dry Bulb Changeover Map
Table 65. Critical control parameters
Description
Supply Air Temperature Control Setpoint
Supply Air Temperature Deadband
Supply Air Pressure Setpoint
Supply Air Pressure Deadband
Building Static Pressure Setpoint
Building Static Pressure Deadband
Standby Freeze Avoidance
Exhaust Enable Setpoint
Economizer Minimum Position Setpoint
Fixed Dry Bulb Economizer C/O Type a
(Moist)*
Fixed Dry Bulb Economizer C/O Type b (Dry)
*
Fixed Dry Bulb Economizer C/O Type c
(Marine)*
Fixed Reference (Enthalpy Changeover)
RT-SVX24Q-EN
Suggested
Region
Region
Parameter
1
55°F
8°F
1.8" w.c.
0.1" w.c.
0.03" w.c.
0.04" w.c.
20%
10%
10%
TOA >
TOA >
65°F
TOA > 75°F
HOA > 28 Btu
T T r r a a n n e e S S t t a a r r t t u u p p C C h h e e c c k k l l i i s s t t
Economizer Settings
Region
Region
Region
2
3
4
TOA >
TOA >
65°F
65°F
65°F
TOA >
TOA >
75°F
75°F
Complete
Region
Region
5
6
7
TOA >
TOA >
TOA >
70°F
70°F
70°F
TOA >
75°F
187

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