LEGEND
EQUIP — Equipment
GND — Ground
NEC — National Electrical Code
TB — Terminal Board
NOTE: The maximum wire size for TB1 is 2/0.
Fig. 12 — Field Power Wiring Connections
|
|
| THERMOSTAT ASSEMBLY |
|
|
| ||
| REMOVABLE JUMPER |
|
|
|
|
| ||
|
| Y1 | Y2 |
|
|
|
| L |
| RH RC | W1 | W2 | G | C | X | ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
TB4 | R | Y1 | Y2 | W1 | W2 | G | C | X |
|
|
|
|
|
|
|
| |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Fig. 13 — Field Control Thermostat Wiring
|
|
|
|
|
| |||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| T1 |
| T2 |
|
|
| TH |
| COM |
| SN |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
TB3 |
|
|
|
|
|
|
|
| 7 |
| 8 |
| 9 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SPT — Space Temperature Sensor
Fig. 14 — Field Control Space
Temperature Sensor Wiring
Set heat anticipator settings as shown inTable 3.
Table 3 — Heat Anticipator Settings
|
| STAGE 1 |
| STAGES 1 AND 2 | |||
UNIT SIZE | ELECTRIC | (W1) ON |
| (W1 and W2) ON | |||
50HG | HEAT (kW) | Voltage |
| Voltage |
| ||
|
| 208/240 | 480 | 600 | 208/240 | 480 | 600 |
| 15 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
014 | 25 | 0.2 | 0.2 | 0.2 | 0.4 | 0.4 | 0.4 |
| 50 | 0.4 | 0.2 | 0.2 | 0.8 | 0.4 | 0.4 |
| 25 | 0.2 | 0.2 | 0.2 | 0.4 | 0.4 | 0.4 |
50 | 0.4 | 0.2 | 0.2 | 0.8 | 0.4 | 0.4 | |
| 75 | 0.4 | 0.2 | 0.2 | 0.8 | 0.4 | 0.4 |
Settings may be changed slightly to provide a greater degree of comfort for a particular installation.
Step 8 — Install Outdoor Air Hood — Perform the following procedure to install the
1.Remove blank panel from return end of unit (hood sec- tion). Save the screws. See Fig. 15 for shipping location of components.
2.Hood sides are fastened to sides of outdoor air opening. Remove the hood sides and save the screws (3 each side).
3.Remove the bracket holding the bottom half of the hood in the shipping position. Remove the hood bottom half and filters (or manual dampers on units so equipped) from outdoor section.
NOTE: On units without economizers, the components are attached to the unit basepan. To access the compo- nents, remove the panel below the outdoor air intake section.
4.Remove inner filter track from shipping position in out- door section. Position inner filter track so the track is fac- ing outward from the unit. Install the filter track with 4 screws provided.
5.Apply seal strip (provided) to back flange of both hood sides where hood side connects to the unit back panel. See Fig. 16.
6.Apply seal strip (provided) to top flange of both hood sides where hood sides connect to the hood top panels. See Fig. 16.
7.Install hood sides to the back panels using the screws from Step 2. The sloped flanges point outward. The drip edges of the side panels should face outward as well. The filter guides should face inward to hold the filters in place. See Fig. 16.
8.Apply seal strip along the entire length of the bottom flange of the hood top. See Fig. 16.
9.Install the bottom part of the hood top using 4 screws pro- vided. See Fig. 16.
10.Remove the packaging from filters (3) and install into the filter tracks. Slide the filters to the sides then place the last filter into the center of the filter track.
NOTE: For units with manual dampers, replace the end filters with the manual dampers. Install the filter in the center between the manual dampers.
11.Install the filter retainer track along the bottom edge of the outdoor air hood using 4 screws provided. See Fig. 16.
12.Install top section of the outdoor air hood using 9 screws provided. See Fig. 16. See Fig. 17 for a picture of the assembled outdoor air hood.
NOTE: For filter removal, remove the four screws holding the filter retainer. The filters can then be removed, cleaned, or replaced. Install the filters by reversing the procedure.
MANUAL DAMPER ASSEMBLY — For units equipped with manual dampers, the assembly process is similar to the out- door air hood for units with economizers. There are two slide dampers shipped with the unit to allow for manual setting of the outside air volume. When assembling the hood, place one of the manual slide dampers in each of the end positions and the re- maining filter in the center position. The manual dampers can then be moved to the appropriate position and then locked into place using the screws mounted in the adjustment slots. See Fig. 18.
| HOOD | HOOD TOP |
HOOD TOP | SIDE | (BOTTOM HALF) |
|
| |
(TOP HALF) |
|
|
HOOD |
|
|
SIDE |
|
|
RETURN AIR |
|
|
SECTION |
|
|
Fig. 15 — Outdoor-Air Hood Compartment
Shipping Location
20
