4
6 - Pump Installation
The 1900e series pump is protected with a double box during shipping. It
can be lifted from the box by the heat sink.
Warning:
Pump may be heavy. Provide yourself help if
needed.
Warning:
The majority of mechanical seal failures are due
to poor media (fluid) quality in the system. To maximize
seal life, media quality must be maintained in the system,
and TDS (Total Dissoled Solids)/TSS (Total Suspended
Solids) should not exceed 500ppm with standard carbon/
Silicon-Carbide seals. The use of inhibitor based glycols is acceptable,
but additional inhibitors should not be added. Always follow the glycol
manufacturer's specification for system preparation and water quality.
Treatment with silicates should not be used. Failure to maintain media
quality will void the standard Taco warranty.
AVERTISSEMENT:
La plupart des défaillances des garnitures mé-
caniques sont dues à une mauvaise qualité de caloporteur. Pour pro-
longer la durée des joints, on doit maintenir la qualité du fluide dans le
système et les solides dissouts totaux (SDT)/matières en suspension to-
tales (MES) ne doivent pas dépasser 500 ppm avec des joints standard
en carbone/carbure de silicium. L'utilisation de glycols/inhibiteurs com-
binés est acceptable, mais on ne doit y ajouter aucun inhibiteur supplé-
mentaire. Suivez toujours les spécifications du fabricant du glycol pour la
préparation du système et la qualité du fluide. On ne doit pas utiliser de
traitement aux silicates. Ne pas maintenir la qualité du fluide annulera la
garantie standard de Taco.
AVERTISSEMENT:
La pompe est lourde. Veillez à de-
mander de l’aide si nécessaire.
It is recommended that the1900e series pumps be installed with at least 5 to
10 pipe diameters of straight pipe on the inlet and outlet of the pump. Use all
nuts and bolts to attach companion flanges to the pump flanges.
The 1915e uses a mechanical seal. To ensure reliability of the seal, a min-
imum continuous safe flow rate of 9 gpm at full load (15% of BEP flow) is
recommended. Ensure flange bolts are adequately torqued.
The 1900e series model pumps can be installed with the motor shaft in the
horizontal position or the vertical position with the control module facing up
(see Figure 1). The cover can be rotated independent of the pump to adjust
orientation of the User Interface – the cable glands should never be pointed
upward to mitigate water ingress. The desired conduit box orientation can
be achieved by rotating the motor housing on the pump casing.
Caution:
When reassembling, care should be taken to avoid damaging the
o-ring and insuring a good seal.
Figure 1.
Preferred Installation
Positions
Acceptable Installation
Positions
UNAUTHORIZED
Installation Positions
Attention!
Installing pumps in UNAUTHORIZED positions may result in voiding the warranty.
Flange Bolt
Size
FLANGE DIMENSIONS
Model (Flange
Size)
Bolt Hole
Diameter
Flange
Thickness
Minimum Bolt
Size
Qty.
1915e (1
1
/
2
”)
0.672
0.688
5/8” x 2
1
/
4
”
2
PERMITTED AMBIENT AND MEDIA TEMPERATURE
Ambient
Temperature [°F]
Fluid Temperature
Min. [°F]
Max. [°F]
Up to 75
36
230
85
36
212
95
36
203
105
36
175
Ambient
Temperature [°C]
Fluid Temperature
Min. [°C]
Max. [°C]
Up to 25
2
110
30
2
100
35
2
90
40
2
80
Attention!
Operation outside recommended conditions may shorten pump
lifetime and void the warranty.
7 - Motor Rotation Procedure
Caution:
If system is filled and pressurized, shut off valves before and
after the 1900e series pump. Allow to cool if system fluid is hot.
Notice!
It is recommended to always change the orientation of the motor
before installing pump in piping.
5 - Pumped Fluids
In hot and chilled hydronic systems, use water or water/glycol mixtures only.
Water/glycol mixtures must be HVAC-system compatible and should have
no more than 50% concentration of glycol. The fluid shall not consist of
aggressive or explosive additives, mixtures of mineral oils or solid or fibrous
particles. The pump should not be used for pumping flammable, explosive
fluids, or in an explosive environment.
Desired pump orientation can be achieved by rotating the pump casing.
The pump is mounted to the volute with four screws. By removing those
the head can be turned. See detailed Motor Rotation Procedure 7 below.
Cast Iron Flange Kit
1600-031RP
Stainless Steel Flange Kit
198-3084RP
