C L I M A T E M A S T E R W A T E R - S O U R C E H E A T P U M P S
TSL Vertical Stack
R e v. : 0 4 / 2 4 / 2 0 1 9
40
C l i m a t e M a s t e r Wa t e r - S o u rc e H e a t P u m p s
Figure 22
Step 3:
Attach AHH or AHU hoses to the Chassis. Check
the swivel ends of the hoses (Figure 22). Washers must
be in the hose for water tight connection. Slide the
chassis part way into the cabinet. Match the WATER IN
(supply) hose to the WATER IN tube on the chassis and
the WATER OUT (Return) hose to the WATER OUT tube.
Position hose toward chassis, use gentle loop- see bend
radii Table 7. Hand tighten hose.
WARNING!
WARNING!
Under no circumstances should any part of the
hose itself be gripped or twisted by hand, pliers, channel
locks or any other tool. Leakage or bursting may occur!
Always use a back-up wrench when tightening the hose.
Step 4:
Chassis Installation - Check condensate pan is
free and on 4 rubber grommets.
Install the Chassis as follows:
1. Slide Chassis fully into cabinet. Check hose for
kinks, do not allow less than minimum bend radius
(see table 7), pull chassis partway out, loosen hose
and reposition hose if needed, retighten.
2. Verify that both the shut-off valves are closed. See
Fig. 21. (handle horizontal)
3. Verify riser stack has been pressure tested, and all
leaks have been repaired.
4. Flush system following the procedure in Preparation
for Start-up Section of this manual.
5. When the system is clean and fl ushed, open both
water shut off valves and check piping for leaks.
Repair all leaks before continuing.
6. Complete electrical connections between cabinet
and chassis. Connect wire harnesses hanging
down from under side of control box to chassis
connections. (See Figure 23). Check that Molex
connectors are snapped together, pull gently on
connector - do not pull on wires.
Figure 23
WARNING!
WARNING!
Do Not open valves to chassis until system has
fl ushed and purged of air!
IMPORTANT!
IMPORTANT!
After the system has been fi lled and system
pump is started, all connections should be rechecked for
water leaks. ClimateMaster WILL NOT be responsible or
liable for damage caused by water leaks at any fi eld water
connections!
CAUTION!
Corrosive system water requires corrosion
resistant fi ttings and hoses, and may require water treatment.
Do not bend hoses at less than the minimum bend
radius for the hose selected. Less than the minimum
bend radius may cause the hose to collapse, which
reduces water fl ow rate. Install an angle adapter to avoid
sharp bends in the hose when the radius falls below the
required minimum.
Table 7: Metal Hose Minimum Bend Radii
Hose Diameter
Minimum Bend Radii
1/2" (12.7)
2-1/2" (64)
3/4" (19.1)
4" (102)
1" (25.4)
5-1/2" (140)
1-1/4" (31.8)
6-3/4" (170)
CAUTION!
CAUTION!
CAUTION!
Piping must comply with all applicable codes.
CAUTION!
Do not bend or kink supply lines or hoses.
CAUTION!
Washers
