Tranquility
®
Digital Air Handler (TAH)
R e v. : A u g u s t 2 1 , 2 0 1 8
18
G e o t h e r m a l H e a t i n g a n d C o o l i n g
1. TAH Air Handlers are shipped from the factory wired
for 230 volts. The units may be wired for 208 or 115
volts. Follow instructions on unit wiring diagram located
on blower housing and in the Service Facts document
included with the unit.
2. The selection of wire and fuse sizes should be made
according to the Minimum Branch Circuit Ampacity and the
Maximum Overcurrent Device listed on the unit nameplate.
3. Field wiring diagrams for electric heaters and unit
accessories are shipped with the accessory.
4. Wiring must conform to National and Local codes.
5. Ground unit per local codes with good safety procedures.
NOTE: If air handler is used with or without a
heater, the electrical entry hole as well as any other
cabinet penetrations must be sealed air-tight.
Wiring Instructions for 115v Conversion from 230 volt
1. Disconnect all power to the unit.
2. Disconnect Transformer primary orange wire from power
block T2 and insulate open end of wire. Connect the
white lead from transformer primary wire to power block
terminal T2. Note: (L2 will be used as Netural)
3. Remove plug in ECM power wiring harness (Fig. 13) and
Install 2 pin jumper plug provided in control box (Fig. 14).
NOTE: When supplementary heaters are installed,
inspect to insure that all packaging material has
been removed.
Electrical - Power Wiring
�
WARNING!
�
Figure 13: Remove Harness Plug
Note: For 115v power only. Damage will occur to motor
with 230v power supply if 115v jumper is used.
Table 4: Electric Table (115) 208/230
WARNING!
Electrical shock hazard - Lock unit disconnect
switch in open position before servicing unit. Failure
to follow this warning could result in property damage,
personal injury, or death.
Figure 14: Install Two Pin Jumper Plug
Model
Fan
Motor FLA
Fan
Motor
HP
Max
Fan
ESP
Min Circ
Amp
(120)
208/230
Total
Unit
FLA
Max Fuse/
HACR
(120)
208/230
026
(7.7) 4.3
1/2
0.5
(7.8) 4.9
(7.7) 4.3
(15) 15
038
(7.7) 4.3
1/2
0.5
(7.8) 4.9
(7.7) 4.3
(15) 15
049
(12.8) 7
1
1
(14.4) 8.6
(12.8) 7
(25) 15
064
(12.8) 7
1
1
(14.4) 8.6
(12.8) 7
(25) 15
Dual Rated Voltate: (115) 208/230
Min/Max Voltage: 115: 114/132
Min/Max Voltage: 208/230: 197/252
