8
6. Assembly / Connection
6.1 Installing the Electrical Wires
6.2 Condensate Drain
6.3 Connection Between the Indoor and Outdoor Unit
The electrical wires used to connect the HydroBox indoor unit to the Heat
Pump outdoor unit must be provided on site. Instructions on connection,
wire recommendations, etc. are provided in the electrical documentation,
section 6.6 and include 120 line voltage and a twisted pair, shielded
communications wire.
To route the connection wires, create wall openings at suitable points. The
wall opening must be protected from water penetration according to the
local conditions. The wall openings should be sealed again correctly once
the routing work is complete.
The Heat Pump outdoor unit produces condensate in the heating months
when in a defrost cycle and must be routed away from unit for proper
operation. To ensure proper drainage, the heat pump must be mounted on
a level surface (figure 8).
If another method is used to route condensate away from unit, then it needs
to be protected from freezing or damage to the heat pump could result.
Do not discharge the condensate directly into clearing tanks or cess pits.
The aggressive vapours and a condensate pipe laid in an area which is not
frost-free can destroy the evaporator.
1. Supply Connection to HydroBox (1 1/4" NPT)
2. Return Connection from HydroBox (1 1/4" NPT)
3. Feedthrough for Condensate Hose
4. Feedthrough for Electrical & Communications Lines
5. Optional Knockouts for Side Electrical Connections
The supply and return piping between the heat pump and the HydroBox
should be a minimum of 1 inch in diameter with a maximum of 1 1/4 inch
and insulated from the elements. This supply and return piping may be
installed underground into the bottom of unit as shown in figure 9 & 10 or
above ground through knockouts on side of base. The insulation needs to
be protected from the elements, so it does not to degrade.
6”
Crushed Stone
Condensate Drain
Outdoor Unit
Power and Communications
Insulated Supply
& Return Piping
Air
Flow
(Back of Unit)
2 1 4 3
22.3”
19.8”
8.3”
4.3”
34.1”
32.7”
7.9”
2.2”
4 X 0.67”
Holes
fo
r Mounting
Fig 4: Supply & Return Connections
(End View)
1
2
5
66.9”
Weight: 386 lbs
23.6”
33.5”
Water Quality
Before connecting the heating water system to the HydroBox and heat
pump, the heating system must be flushed to remove any impurities,
residue from sealants, etc. Any accumulation of deposits in the liquefier
may cause the heat pump to break down.
Fig. 8
Fig. 9: Bottom Dimensions
(Top View)
Fig. 10: Supply & Return Connections
(Side View)
HydroBox Piping Connections
Fig. 11
