signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would re- sult in minor personal injury or product and property damage.
WARNING
Electrical shock can cause personal injury or death. Before installing or servicing system, always turn off main power to system. There may be more than one disconnect switch. Turn off accessory heater power if applicable.
1.Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the cor- rect unit has been shipped.
2.Keep both the chassis and cabinet covered with the ship- ping carton until all plastering, painting, and finish work is complete and it is time to install the chassis and cabinet.
3.Verify that the refrigerant tubing is free of kinks or dents, and that it does not touch other unit components.
4.Inspect all electrical connections. Connections must be clean and tight at the terminals.
GENERAL
The 50PEC water source heat pump console unit is a decen- tralized room terminal designed for field connection to a
Units are typically installed in perimeter zones, usually un- der windows. Supply air is discharged directly into the condi- tioned space through discharge grilles located in the top of the unit.
IMPORTANT: The installation of console water source heat pump units and all associated components, parts, and acces- sories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes. It is the respon- sibility of the installing contractor to determine and comply with ALL applicable codes and regulations.
INSTALLATION
Step 1 — Check Jobsite — Units are typically in- stalled along an outside wall of the room. Refer to Fig. 1 and 2 for an illustration showing piping locations. Install units with adequate clearance to allow maintenance and servicing. Refer to Table 1 and Fig.
Installation, operation and maintenance instructions are provided with each unit. Before unit
CAUTION
To avoid equipment damage, do not use these units as a source of heating or cooling during the construction pro- cess. The mechanical components and filters used in these units quickly become clogged with construction dirt and debris which may cause system damage.
CAUTION
To avoid the release of refrigerant into the atmosphere, the refrigerant circuit of this unit must only be serviced by technicians who meet local, regional, and national profi- ciency requirements.
CAUTION
All refrigerant discharged from this unit must be recovered without exception. Technicians must follow industry accepted guidelines and all local, regional, and national statutes for the recovery and disposal of refrigerants.
CAUTION
When a compressor is removed from this unit, system refrigerant circuit oil will remain in the compressor. To avoid leakage of compressor oil, the refrigerant lines of the compressor must be sealed after it is removed.
Table 1 — 50PEC Physical Data
BASE UNIT 50PEC | 09 | 12 | 15 | 18 |
NOMINAL COOLING CAPACITY (Btuh) | 9,300 | 12,300 | 13,800 | 16,000 |
COMPRESSOR |
| Rotary |
| |
BLOWER | 1/20 | 1/12 | 1/8 | 1/8 |
Motor Horsepower | ||||
Wheel Size D x W (in.) 2 each | 51/4 x 61/4 | 51/4 x 61/4 | 51/4 x 61/4 | 51/4 x 61/4 |
FILTER SIZE (in.) Bottom Return (Qty) | 10 x 30 x 1 (1) | 10 x 30 x 1 (1) | 10 x 30 x 1 (1) | 10 x 36 x 1 (1) |
FILTER SIZE (in.) Front Return (Qty) | 7 x 291/2 x 1/8 (1) | 7 x 291/2 x 1/8 (1) | 7 x 291/2 x 1/8 (1) | 7 x 351/2 x 1/8 (1) |
UNIT WEIGHT (lb) |
|
|
|
|
Shipping | 185 | 190 | 200 | 232 |
Operating | 175 | 180 | 190 | 220 |
REF. TO AIR HEAT EXCHANGER |
|
|
|
|
Face Area (sq ft) | 1.4 | 1.4 | 1.8 | 1.8 |
No. of Rows Deep | 2 | 3 | 3 | 3 |
Copper Tube Size OD (in.) | 3/8 | 3/8 | 3/8 | 3/8 |
Fin Spacing (FPI) | 13 | 13 | 13 | 12 |
REFRIG. CHARGE | 28 | 29 | 37 | 39 |
No. of Circuits | 1 | 1 | 1 | 1 |
UNIT CABINET WITH BOTTOM RETURN WITH STANDARD |
|
|
|
|
5 in. SUBBASE Width x Height x Depth (in.) | 48 x 26 x 12 | 48 x 26 x 12 | 48 x 26 x 12 | 54 x 26 x 12 |
UNIT CABINET WITH FRONT RETURN |
|
|
|
|
(NO SUBBASE) Width x Height x Depth (in.) | 48 x 21 x 12 | 48 x 21 x 12 | 48 x 21 x 12 | 54 x 21 x 12 |
WATER IN/OUT SIZE OD SWEAT (in.) | 1/2 | 1/2 | 1/2 | 3/4 |
CONDENSATE SIZE ID VINYL (in.) | 5/8 | 5/8 | 5/8 | 5/8 |
2