Trane GETB Supply Grille installation, Cleaning and Flushing Water Loop, Supply air opening size

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 settle-out in the condenser). An extra pipe may be necessary to con- nect the hose kits. See Page 15 for an- tifreeze/water mixture by volume.

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 water-to-refriger- ant heat exchanger in the water cir- culating system.

Note: Vents should be open when the pumps and supplementary heat sys- tem are shut down.

CONNECTION

HOSE

CIRCULATING

PUMP

WATER-SOURCE

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				TEMPORARY
				CONNECTION
				FOR SYSTEM
circulating pump and then crack the				FLUSHING
air vents to bleed off the trapped
air, assuring circulation through all
components of the system.						GROUND-LOOP
Note: Make up water must be available						OR
						COOLING TOWER/BOILER
to the system to replace the volume			Figure 12: Flushing the water loop
formerly occupied by the air that is			Table 2: Supply air opening size
bled off.
	GET	Single Grille	Two Grille	Three Grille		Top Discharge
						Up to 100%
	Model	100% CFM	50% CFM	33% CFM
						CFM
	009, 012	12W x 10H	10W x 6H		Not	14 x 10
		(305 x 254)	(254 x 152)	Recommended		(356 x 254)
	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)
	036	Not	16W x 14H	14W x 12H		17 x 17
		Recommended	(406 x 356)	(356 x 305)		(432 x 432)

14 WSHP-SVN08B-EN