Install Instructions

Shipment Inspection

Examine the components carefully to make sure no

damage has occurred to the pump during shipment. Care

should be taken to ensure the pump is NOT dropped or

mishandled; dropping will damage the pump.

Pre-Installation Checklist

Before beginning installation procedures, the following checks

should be made. They are all important for proper installation

of the circulator pump.

1. Uses: Model UP(S)15, 26, 43 and 50 series pumps

are generally designed to circulate water from 32 deg F to

230 deg F up to a maximum pressure of 150 psi. Some

models have temperature limitations which are shown

in Table 2A below. If required, a 50% by volume solution

of ethylene or propylene glycol and water can be used,

however, a decrease in pump performance may result

due to an increase in the viscosity of the solution. Check

with manufacturer for information regarding suitability of

pumping other uids.

Closed Systems: Model UP(S)15, 26, 43 and 50 series

pumps with cast iron pump housings are designed to pump

water compatible with their cast iron construction. They

are recommended for use in closed hydronic systems.

(i.e. airless, non-potable water).

Open Systems: Model UP(S)15, 26, 43 and 50 series

pumps with stainless steel or bronze pump housings are

designed to pump water compatible with their construction

and can be used in both open and closed systems.

2. Maximum Water Temperature: The maximum

allowable water temperature is determined by the ambient

or surrounding air temperature as shown in Table 2A.

Table 2A – Maximum Water Temperature

Ambient (°F) 104 120 140 160 175

Water All UP* (°F) 230 220 210 190 175

UPS15-35 165 140 - - -

UP15-100F (°F)

205 195 185 175 -

UP26-120U (°F)

205 195 185 175 -

UP26-116 (°F)

150 140 - - -

*Exceptions below:

Installation