![Supply Grille installation](/images/new-backgrounds/30816/3081627x1.webp)
Installation
!WARNING
Live Electrical
Components!
During installation, testing, ser- vicing and troubleshooting of this product, it may be necessary to work with live electrical compo- nents. Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical compo- nents perform these tasks. Failure to follow all electrical safety pre- cautions when exposed to live electrical components could re- sult in death or serious injury.
7Flush system. See Cleaning and Flushing the Water Loop for flushing instructions.
8Open the unit water valves and check piping for leaks.
9Connect electrical to unit chassis via the quick connect mating plugs.
Note: Four plugs are included (motor, optional condensate overflow, power and thermostat).
10Slide chassis into the cabinet. Cen- ter the chassis left to right to mini- mize sound transmission. See Figure 11.
IMPORTANT
Ensure the gasket material creates a positive seal around the entire coil to avoid coil bypass.
If a field supplied door is used, ensure the front cover is attached to the build- ing structure and not the unit cabinet.
Supply Grille installation
See Table 2 for supply air dimensions.
1Install the supply grille(s) into the cabinet discharge opening. Insure there are no air gaps between the cabinet supply air and the grille.
This helps prevent recirculation of supply air into the return air open- ing behind the drywall.
2Secure grille(s) into the drywall via two screws.
Cleaning and Flushing
the Water Loop
After the piping system is complete, the flexible hose connectors should be doubled back to complete the water circuit external to the unit (avoiding trash
3Water circulation system should be filled with clean water using the wa- ter make up connections. Note: Air vents should be opened during fill- ing.
5With the air vented and the water circulating, the entire system should be checked for leaks with re- pairs made as required.
6Operate the supplementary heat system making checks per manu- facturer’s instructions. During this operation, visual checks should be made for leaks that may have oc- curred due to increased heat. Re- pair as required.
7Open the system at the lowest point for the initial blow down (making sure the make up water is equal to the water being dumped). Continue blow down until the water leaving the drain runs clear, but not less than 2 hours.
8Shut down pumps and supplemen- tary heat system. Reconnect the hoses placing the
Note: Vents should be open when the pumps and supplementary heat sys- tem are shut down.
CONNECTION
HOSE
CIRCULATING
PUMP
HEAT PUMP
Figure 11: Install chassis centered
11 Verify unit’s air filter is properly place in the chassis filter rack.
12 Install cabinet’s front cover to the hinged door.
4 With the air vents closed, start the |
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circulating pump and then crack the | FLUSHING |
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air vents to bleed off the trapped |
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air, assuring circulation through all |
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components of the system. |
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Note: Make up water must be available |
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to the system to replace the volume | Figure 12: Flushing the water loop | |||||||||
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formerly occupied by the air that is | Table 2: Supply air opening size | |||||||||
bled off. |
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| GET | Single Grille |
| Two Grille | Three Grille | Top Discharge | ||||
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| Up to 100% | ||||||||
| Model | 100% CFM |
| 50% CFM | 33% CFM | |||||
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| 009, 012 | 12W x 10H |
| 10W x 6H |
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| Not | 14 x 10 | ||
| (305 x 254) |
| (254 x 152) | Recommended | (356 x 254) | |||||
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| 015, 018, | 14W x 12H |
| 14W x 12H | 12W x 8H | 16 x 14 | ||||
| 024 | (356 x 305) |
| (356 x 305) | (305 x 203) | (406 x 356) | ||||
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| 036 | Not |
| 16W x 14H | 14W x 12H | 17 x 17 | ||||
| Recommended |
| (406 x 356) | (356 x 305) | (432 x 432) | |||||
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14 |